Pub Date : 2022-07-04DOI: 10.1080/13640461.2022.2114669
J. Benavides-Treviño, A. Juárez-Hernández, M. Hernández, N. Garza-Montes-de-Oca, R. Colás
ABSTRACT Manufacturing of plastic goods by rotational moulding relies on aluminium tooling to reduce energy consumption as their thermal and electrical conductivities are enhanced and their weight is reduced. Moulding is carried out at high temperatures, and a considerable amount of energy is consumed by heating up the moulds and hence the interest on the evaluation of the thermophysical properties of potential aluminium alloys. This work reports the results of studies conducted on a series of cast Al-Si-Cu alloys that may be used for producing tooling and moulds. The work contemplated the study of solidification and the way into which the microstructure changes with the chemical composition and how these characteristics affect the thermal diffusivity with respect to temperature, chemical composition and microstructure. The results show that thermal diffusivity can be enhanced by modifying their processing and the corresponding microstructural features.
{"title":"Development of cast aluminium alloys for plastic moulding","authors":"J. Benavides-Treviño, A. Juárez-Hernández, M. Hernández, N. Garza-Montes-de-Oca, R. Colás","doi":"10.1080/13640461.2022.2114669","DOIUrl":"https://doi.org/10.1080/13640461.2022.2114669","url":null,"abstract":"ABSTRACT Manufacturing of plastic goods by rotational moulding relies on aluminium tooling to reduce energy consumption as their thermal and electrical conductivities are enhanced and their weight is reduced. Moulding is carried out at high temperatures, and a considerable amount of energy is consumed by heating up the moulds and hence the interest on the evaluation of the thermophysical properties of potential aluminium alloys. This work reports the results of studies conducted on a series of cast Al-Si-Cu alloys that may be used for producing tooling and moulds. The work contemplated the study of solidification and the way into which the microstructure changes with the chemical composition and how these characteristics affect the thermal diffusivity with respect to temperature, chemical composition and microstructure. The results show that thermal diffusivity can be enhanced by modifying their processing and the corresponding microstructural features.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43345605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-04DOI: 10.1080/13640461.2022.2114668
A. C. González-Castillo, C. Garay-Reyes, J. Hernández-Rivera
ABSTRACT This research is focused on the development of a novel medium Mn steel with V-addition (0.14 wt.%), which belongs to the Advanced High Strength Steels (AHSS). In order to predict the equilibrium phases, thermodynamic simulation was used. The microstructure of the as-cast steel was composed of retained austenite, α´-martensite/α-ferrite and a very small amount of ɛ-martensite. To understand the hot flow behaviour of the as-cast steel, hot compression tests were performed at 800°C and 1000°C with a strain rate of 0.83 s−1 and 0.083 s−1, the results were compared to a V-free steel taken from the literature. A significant increase in the applied stress was observed in the samples deformed at 800°C, especially, at the strain rate of 0.083s−1. Finally, to achieve a better understanding of this behaviour, the microstructure of the V-added steel was studied after hot compression tests.
{"title":"High temperature microstructure and mechanical properties of as-cast medium Mn steel with V addition","authors":"A. C. González-Castillo, C. Garay-Reyes, J. Hernández-Rivera","doi":"10.1080/13640461.2022.2114668","DOIUrl":"https://doi.org/10.1080/13640461.2022.2114668","url":null,"abstract":"ABSTRACT This research is focused on the development of a novel medium Mn steel with V-addition (0.14 wt.%), which belongs to the Advanced High Strength Steels (AHSS). In order to predict the equilibrium phases, thermodynamic simulation was used. The microstructure of the as-cast steel was composed of retained austenite, α´-martensite/α-ferrite and a very small amount of ɛ-martensite. To understand the hot flow behaviour of the as-cast steel, hot compression tests were performed at 800°C and 1000°C with a strain rate of 0.83 s−1 and 0.083 s−1, the results were compared to a V-free steel taken from the literature. A significant increase in the applied stress was observed in the samples deformed at 800°C, especially, at the strain rate of 0.083s−1. Finally, to achieve a better understanding of this behaviour, the microstructure of the V-added steel was studied after hot compression tests.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45574574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-04DOI: 10.1080/13640461.2022.2093586
Manojkumar V. Sheladiya, S. Acharya, G. Acharya
ABSTRACT In foundries, it becomes necessary to minimise the machining allowance for economic reasons. It will save resources and costs by reducing the energy and expenses incurred on re-melting, machining and tooling. A deeper understanding of the complicated microstructures developed within about 3.5 mm of the mould-metal interface is necessary. The current research work uses a unique experimental design that involves performing surface and subsurface microscopy and spectroscopy at 0.5 mm intervals from the as-cast surface to a depth of up to 3.5 mm for three samples. The objective is on evaluating microstructure for determining graphite flake size, distribution, grouping, pearlite and ferrite percentage, and different elements. All three samples were subjected to a hardness test, which is a measure of machinability. The relationship between hardness as a single response to percentage presence of elements, graphite distribution and pearlite has been established using statistical analysis.
{"title":"Effect of microstructure on the hardness of ASTM A48 class 20 flaked graphite cast iron","authors":"Manojkumar V. Sheladiya, S. Acharya, G. Acharya","doi":"10.1080/13640461.2022.2093586","DOIUrl":"https://doi.org/10.1080/13640461.2022.2093586","url":null,"abstract":"ABSTRACT In foundries, it becomes necessary to minimise the machining allowance for economic reasons. It will save resources and costs by reducing the energy and expenses incurred on re-melting, machining and tooling. A deeper understanding of the complicated microstructures developed within about 3.5 mm of the mould-metal interface is necessary. The current research work uses a unique experimental design that involves performing surface and subsurface microscopy and spectroscopy at 0.5 mm intervals from the as-cast surface to a depth of up to 3.5 mm for three samples. The objective is on evaluating microstructure for determining graphite flake size, distribution, grouping, pearlite and ferrite percentage, and different elements. All three samples were subjected to a hardness test, which is a measure of machinability. The relationship between hardness as a single response to percentage presence of elements, graphite distribution and pearlite has been established using statistical analysis.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46136909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-04DOI: 10.1080/13640461.2022.2082758
Saeed Farahany, Mustafa Abazari
ABSTRACT The current study investigated the effect of heat treatment parameters, including solution treatment temperature (STT), time, and quench rate, on the microstructure, defects, and hardness of an Al-16Si-6Cu Shift fork die-cast alloy. The changes in primary silicon particle (PSP) features were examined quantitatively by optical microscopy, coupled with image analysis and SEM equipped with EDS. The biggest PSPs (27 ± 8 µm) and the highest area fraction (23%) were found in the sample solution treated at 470°C and cooled in the furnace. The hardness value increased in heat-treated samples slightly (140–148 BHN). A lower STT (420°C) and a lower ageing time (1 h) are suitable conditions for the heat treatment of an Al-16Si-6Cu die-cast alloy, in which a lower pore area fraction, 1.18, smaller pore, 4.5 μm, along with finer primary silicon, 9.5 ± 3 μm, with higher circularity, 0.38 ± 0.04, was achieved.
{"title":"Effect of heat treatment parameters on microstructure, defects, and properties of Al-16Si-6Cu automotive shift fork: quantitative evaluation perspective","authors":"Saeed Farahany, Mustafa Abazari","doi":"10.1080/13640461.2022.2082758","DOIUrl":"https://doi.org/10.1080/13640461.2022.2082758","url":null,"abstract":"ABSTRACT The current study investigated the effect of heat treatment parameters, including solution treatment temperature (STT), time, and quench rate, on the microstructure, defects, and hardness of an Al-16Si-6Cu Shift fork die-cast alloy. The changes in primary silicon particle (PSP) features were examined quantitatively by optical microscopy, coupled with image analysis and SEM equipped with EDS. The biggest PSPs (27 ± 8 µm) and the highest area fraction (23%) were found in the sample solution treated at 470°C and cooled in the furnace. The hardness value increased in heat-treated samples slightly (140–148 BHN). A lower STT (420°C) and a lower ageing time (1 h) are suitable conditions for the heat treatment of an Al-16Si-6Cu die-cast alloy, in which a lower pore area fraction, 1.18, smaller pore, 4.5 μm, along with finer primary silicon, 9.5 ± 3 μm, with higher circularity, 0.38 ± 0.04, was achieved.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44146840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-04DOI: 10.1080/13640461.2022.2078550
F. Ramstorfer, Marco Delane de Souza
ABSTRACT The demand for long casting sequences together with a wide range of different steel grades inherently leads to the generation of incompatible steel intermixing during a grade change. This paper describes the development of an optimisation tool for casting sequences based on a mixing model. The mixing model accounts for mixing in the tundish and in the liquid core of the strand and was calibrated based on samples of the chemical composition taken from slabs containing intermixed steel. The optimisation of the casting sequence order by minimising incompatible intermixing was accomplished by applying heuristic optimisation algorithms developed for the solution of the ‘Traveling Salesman Problem’.
{"title":"Reduction of incompatible intermixing of different steel grades in continuous casting by optimizing the casting sequence","authors":"F. Ramstorfer, Marco Delane de Souza","doi":"10.1080/13640461.2022.2078550","DOIUrl":"https://doi.org/10.1080/13640461.2022.2078550","url":null,"abstract":"ABSTRACT The demand for long casting sequences together with a wide range of different steel grades inherently leads to the generation of incompatible steel intermixing during a grade change. This paper describes the development of an optimisation tool for casting sequences based on a mixing model. The mixing model accounts for mixing in the tundish and in the liquid core of the strand and was calibrated based on samples of the chemical composition taken from slabs containing intermixed steel. The optimisation of the casting sequence order by minimising incompatible intermixing was accomplished by applying heuristic optimisation algorithms developed for the solution of the ‘Traveling Salesman Problem’.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47466185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-04DOI: 10.1080/13640461.2022.2069912
Murat Çolak, İ. Arslan
ABSTRACT The aim of this study is to improve the tribological behaviour of aluminium alloys by using grain refiner and modifier. The effects of Al5Ti1B grain refiner and Al10Sr modifier additives on friction and wear properties on A380, A357 alloys produced by pouring sand andpermanent mould casting were investigated. Abrasion tests were carried out under dry conditions against St1040 steel disc using a pin-disk system with 20 N load and 1.0 m/s sliding speed. It was determined that grain refiner and modifier additives decrease the friction coefficient and increase the wear resistance. It was determined that the samples produced by permanent mould casting method decreased the friction resistance by 9% and the abrasion resistance increased by 40% compared to the samples produced in sand mould. The lowest wear rate was obtained in A380 alloy with TiB and Sr added with a value of 4.87 × 10–11 m2/N.
{"title":"Investigation of the effect of the addition of grain refiner and modifier addition on wear properties in sand and permanent mould casting of A357 and A380 aluminium alloys","authors":"Murat Çolak, İ. Arslan","doi":"10.1080/13640461.2022.2069912","DOIUrl":"https://doi.org/10.1080/13640461.2022.2069912","url":null,"abstract":"ABSTRACT The aim of this study is to improve the tribological behaviour of aluminium alloys by using grain refiner and modifier. The effects of Al5Ti1B grain refiner and Al10Sr modifier additives on friction and wear properties on A380, A357 alloys produced by pouring sand andpermanent mould casting were investigated. Abrasion tests were carried out under dry conditions against St1040 steel disc using a pin-disk system with 20 N load and 1.0 m/s sliding speed. It was determined that grain refiner and modifier additives decrease the friction coefficient and increase the wear resistance. It was determined that the samples produced by permanent mould casting method decreased the friction resistance by 9% and the abrasion resistance increased by 40% compared to the samples produced in sand mould. The lowest wear rate was obtained in A380 alloy with TiB and Sr added with a value of 4.87 × 10–11 m2/N.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48492388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-04DOI: 10.1080/13640461.2022.2078552
P. Tang, Jinsheng Lai, Yuying Lin
ABSTRACT In this work, OM, SEM/EDS, XRD, DSC, and tensile test were used to study the effect on mechanical and thermodynamic properties of Al-10Si-0.8Fe alloys with Al-Ti-C (0.5 wt.%) and xCe (viz. 0.2, 0.4, 0.6 and 0.8 wt.%) compound addition. After adding compound additives to Al-10Si-0.8Fe, the average size of SDAS decreased and the mechanical properties increased. When Ce is 0.6 wt.%, The smallest SDAS size and the best mechanical properties were obtained, then the melting range and enthalpy of melting also reached the minimum. Al-Ti-C can form submicron TiC in the melt, which refines the grains, and adding Ce can form Ce5Si3 to round the needle-like Fe-rich phase and reduce the adverse effect, the composite additions of them synergistically improve the properties of Al-10Si-0.8Fe alloy. But excessive Ce could aggregate Ti and Fe-rich phases, then coarse impurity particles could form in the melt, leading to modification failure and performance deterioration.
{"title":"Effect on mechanical and thermodynamic properties of Al-10Si-0.8Fe alloys with Al-Ti-C and Ce compound additions","authors":"P. Tang, Jinsheng Lai, Yuying Lin","doi":"10.1080/13640461.2022.2078552","DOIUrl":"https://doi.org/10.1080/13640461.2022.2078552","url":null,"abstract":"ABSTRACT In this work, OM, SEM/EDS, XRD, DSC, and tensile test were used to study the effect on mechanical and thermodynamic properties of Al-10Si-0.8Fe alloys with Al-Ti-C (0.5 wt.%) and xCe (viz. 0.2, 0.4, 0.6 and 0.8 wt.%) compound addition. After adding compound additives to Al-10Si-0.8Fe, the average size of SDAS decreased and the mechanical properties increased. When Ce is 0.6 wt.%, The smallest SDAS size and the best mechanical properties were obtained, then the melting range and enthalpy of melting also reached the minimum. Al-Ti-C can form submicron TiC in the melt, which refines the grains, and adding Ce can form Ce5Si3 to round the needle-like Fe-rich phase and reduce the adverse effect, the composite additions of them synergistically improve the properties of Al-10Si-0.8Fe alloy. But excessive Ce could aggregate Ti and Fe-rich phases, then coarse impurity particles could form in the melt, leading to modification failure and performance deterioration.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45020830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-04DOI: 10.1080/13640461.2022.2078551
S. A, Y. Basavaraj, R. Subramanya
ABSTRACT The aim of this study is to investigate at the mechanical characteristics of Fe3O4 particle reinforced with 7075 aluminium alloy composite. The composites of different weight percentage 2%, 4%, 6%, and 8% of Fe3O4 reinforcement were prepared using stir casting technique. Prepared composite samples were examined for mechanical properties like tensile percentage elongation and hardness test along with scanning electron microscopy. Additionally, corrosion was also conducted on the prepared samples. The results of mechanical properties reveal that improvement in hardness and tensile strength and corrosion resistance values with different weight percentage combinations. When compared to the original Al7075 alloy, the Ultimate Tensile Strength is highest at a value of 64.563% for 8% Fe3O4 reinforcement, and variation in Ultimate Tensile Strength is highest at a value of 21.865% for an increase in reinforcement percentage from 4% to 6% weight, according to the experimental studies. .
{"title":"Synthesis of Fe3O4–aluminium matrix composites: mechanical and corrosion characteristics","authors":"S. A, Y. Basavaraj, R. Subramanya","doi":"10.1080/13640461.2022.2078551","DOIUrl":"https://doi.org/10.1080/13640461.2022.2078551","url":null,"abstract":"ABSTRACT The aim of this study is to investigate at the mechanical characteristics of Fe3O4 particle reinforced with 7075 aluminium alloy composite. The composites of different weight percentage 2%, 4%, 6%, and 8% of Fe3O4 reinforcement were prepared using stir casting technique. Prepared composite samples were examined for mechanical properties like tensile percentage elongation and hardness test along with scanning electron microscopy. Additionally, corrosion was also conducted on the prepared samples. The results of mechanical properties reveal that improvement in hardness and tensile strength and corrosion resistance values with different weight percentage combinations. When compared to the original Al7075 alloy, the Ultimate Tensile Strength is highest at a value of 64.563% for 8% Fe3O4 reinforcement, and variation in Ultimate Tensile Strength is highest at a value of 21.865% for an increase in reinforcement percentage from 4% to 6% weight, according to the experimental studies. .","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44443801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-02DOI: 10.1080/13640461.2022.2069913
K. Asano, Ryuta Toyoda, M. Matsumuro, Akinori Okada
ABSTRACT For reducing the forming cost of the PAN-based carbon fibre preforms, a water glass binder was used as a substitute for conventional silica binder. The preforms were infiltrated with an aluminium alloy melt by squeeze casting to fabricate the fibre-reinforced composites. The microstructure and properties of the composites were compared to the composites using the silica binder. In the composites, the water glass binder mainly remained in the vicinity of the fibre–aluminium interface and partially distributed in the matrix. The reaction near the interface between the alloy melt and binder was not recognised. The thermal expansion coefficient, thermal conductivity and the compressive strength of the composites using the water glass binder were approximately equivalent to those of the composite using the silica binder. Based on these results, the water glass can be used as an alternative binder to the silica sol.
{"title":"Fabrication of carbon fibre preform with water-glass binder and infiltration of aluminium alloy melt by squeeze casting","authors":"K. Asano, Ryuta Toyoda, M. Matsumuro, Akinori Okada","doi":"10.1080/13640461.2022.2069913","DOIUrl":"https://doi.org/10.1080/13640461.2022.2069913","url":null,"abstract":"ABSTRACT For reducing the forming cost of the PAN-based carbon fibre preforms, a water glass binder was used as a substitute for conventional silica binder. The preforms were infiltrated with an aluminium alloy melt by squeeze casting to fabricate the fibre-reinforced composites. The microstructure and properties of the composites were compared to the composites using the silica binder. In the composites, the water glass binder mainly remained in the vicinity of the fibre–aluminium interface and partially distributed in the matrix. The reaction near the interface between the alloy melt and binder was not recognised. The thermal expansion coefficient, thermal conductivity and the compressive strength of the composites using the water glass binder were approximately equivalent to those of the composite using the silica binder. Based on these results, the water glass can be used as an alternative binder to the silica sol.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43255601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-18DOI: 10.1080/13640461.2022.2064653
Murat Çolak, Mete Şekerden
ABSTRACT In the casting method, it is crucial to properly make the moulding design to produce sound parts. Volumetric change, especially during the solidification of spheroidal graphite cast irons, may show different behaviour compared to steel and aluminium castings. In this study, castings were carried out with single and double feeders with varying casting parameters of green sand and resin mould sand containing different cross-sectional thicknesses. Depending on the chemical composition, mould rigidity and inoculation efficiency, and the importance of the feeder path was evaluated by experimental and modelling techniques. Consequently, it was observed that the risk of shrinkage in resin moulds is less than in green sand castings in the same moulding design. In addition, it has been found that the number of feeders and neck connection is an important parameter in pore formation.
{"title":"MODELLING AND VALIDATION OF EFFECT OF BINDER TYPE ON FEEDING BEHAVIOUR OF SPHEROIDAL GRAPHITE CAST IRON","authors":"Murat Çolak, Mete Şekerden","doi":"10.1080/13640461.2022.2064653","DOIUrl":"https://doi.org/10.1080/13640461.2022.2064653","url":null,"abstract":"ABSTRACT In the casting method, it is crucial to properly make the moulding design to produce sound parts. Volumetric change, especially during the solidification of spheroidal graphite cast irons, may show different behaviour compared to steel and aluminium castings. In this study, castings were carried out with single and double feeders with varying casting parameters of green sand and resin mould sand containing different cross-sectional thicknesses. Depending on the chemical composition, mould rigidity and inoculation efficiency, and the importance of the feeder path was evaluated by experimental and modelling techniques. Consequently, it was observed that the risk of shrinkage in resin moulds is less than in green sand castings in the same moulding design. In addition, it has been found that the number of feeders and neck connection is an important parameter in pore formation.","PeriodicalId":13939,"journal":{"name":"International Journal of Cast Metals Research","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2022-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42877868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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