Pub Date : 2023-12-19DOI: 10.24425/amm.2023.146211
C. Wan, X. Li, H. Xing
Quaternary ammonium salt (QaS) Hyamine 1622 and benzotriazole (BTaH) were used to form a protective layer on copper surface to resist the corrosion by immersing the copper into the inhibitors-containing solutions. The inhibitor’s anticorrosion properties are studied in neutral 3.5 wt.% naCl medium by anodic polarization, Tafel polarization, electrochemical impedance spectroscopy (EiS) and OCP exposure. The surface characterization is analyzed by Contact angle(Ca) measurement, X-ray photo-electron spectroscopy (XPS), and scanning electron microscopy(SEM). The electrochemical tests show that they can act as single inhibitor to form a passive layer to resist Cu corrosion, and the anticorrosion properties of Cu can be improved by using binary Hyamine 1622/BTaH inhibitors. XPS results indicate that both BaTH and Hyamine 1622 molecule can be chemisorbed onto the copper surface and make complex films with Cu species. Ca measurement revealed the enhancement of hydrophobicity by combining QSa with BTaH. OCP exposure in neutral medium for 72 h evidently reveals that the passive layer formed by binary inhibitors decreases the pit corrosion. Better hydrophobic nature and more compact passive layer give rise to excellent inhibition properties of binary inhibitors.
{"title":"Copper Corrosion inhibition by a Quaternary Ammonium Salt-assisted Benzotriazole","authors":"C. Wan, X. Li, H. Xing","doi":"10.24425/amm.2023.146211","DOIUrl":"https://doi.org/10.24425/amm.2023.146211","url":null,"abstract":"Quaternary ammonium salt (QaS) Hyamine 1622 and benzotriazole (BTaH) were used to form a protective layer on copper surface to resist the corrosion by immersing the copper into the inhibitors-containing solutions. The inhibitor’s anticorrosion properties are studied in neutral 3.5 wt.% naCl medium by anodic polarization, Tafel polarization, electrochemical impedance spectroscopy (EiS) and OCP exposure. The surface characterization is analyzed by Contact angle(Ca) measurement, X-ray photo-electron spectroscopy (XPS), and scanning electron microscopy(SEM). The electrochemical tests show that they can act as single inhibitor to form a passive layer to resist Cu corrosion, and the anticorrosion properties of Cu can be improved by using binary Hyamine 1622/BTaH inhibitors. XPS results indicate that both BaTH and Hyamine 1622 molecule can be chemisorbed onto the copper surface and make complex films with Cu species. Ca measurement revealed the enhancement of hydrophobicity by combining QSa with BTaH. OCP exposure in neutral medium for 72 h evidently reveals that the passive layer formed by binary inhibitors decreases the pit corrosion. Better hydrophobic nature and more compact passive layer give rise to excellent inhibition properties of binary inhibitors.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":"120 5","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959668","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 : 2023-12-19DOI: 10.24425/amm.2023.146218
A. Kalwik, P. PostAwA
the paper presents the results of the analysis of physical phenomena associated with the degradation processes of the surface layer of polymeric materials. During the interaction disturbance of ultraviolet radiation, atoms are knocked out of the polymer chains, thus breaking the macromolecules, which leads to the disturbance in the structural stability of the materials. the standardised test samples obtained using the injection moulding method were subjected to the degradation process in natural and accelerated conditions in the UV test device. the degradation process in laboratory conditions was carried out during 750 hours with the use of lamps with a wavelength of 313 nanometers and an irradiation level of 0.76 w/m 2 , which corresponds to a period of 2 years in natural conditions. Using of thermogravimetric tGA and differential scanning calorimetry DsC analysis, the influence of energy applied from lamps and the energy reaching the earth’s surface on the change of melting enthalpy ∆ H m , quantitative index of the crystalline phase and the temperature of phase changes were determined.
本文介绍了与聚合材料表层降解过程相关的物理现象分析结果。在紫外线辐射的相互作用干扰下，高分子链上的原子被击出，从而使大分子断裂，导致材料结构稳定性受到干扰。采用注塑方法获得的标准化测试样品在紫外线测试装置中经历了自然和加速条件下的降解过程。实验室条件下的降解过程是在波长为 313 纳米、辐照度为 0.76 瓦/米 2 的灯管下进行的，历时 750 小时，相当于自然条件下的 2 年。通过热重分析 tGA 和差示扫描量热分析 DsC，确定了灯的能量和到达地球表面的能量对熔化焓 ∆ H m 的变化、结晶相的定量指数和相变温度的影响。
{"title":"Analysis of Changes in the Physical Properties and Structure of Poly(Oxymethylene) After Ageing in Natural Conditions and Accelerated by UVB-313 nm Radiation","authors":"A. Kalwik, P. PostAwA","doi":"10.24425/amm.2023.146218","DOIUrl":"https://doi.org/10.24425/amm.2023.146218","url":null,"abstract":"the paper presents the results of the analysis of physical phenomena associated with the degradation processes of the surface layer of polymeric materials. During the interaction disturbance of ultraviolet radiation, atoms are knocked out of the polymer chains, thus breaking the macromolecules, which leads to the disturbance in the structural stability of the materials. the standardised test samples obtained using the injection moulding method were subjected to the degradation process in natural and accelerated conditions in the UV test device. the degradation process in laboratory conditions was carried out during 750 hours with the use of lamps with a wavelength of 313 nanometers and an irradiation level of 0.76 w/m 2 , which corresponds to a period of 2 years in natural conditions. Using of thermogravimetric tGA and differential scanning calorimetry DsC analysis, the influence of energy applied from lamps and the energy reaching the earth’s surface on the change of melting enthalpy ∆ H m , quantitative index of the crystalline phase and the temperature of phase changes were determined.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 4","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959985","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 : 2023-12-19DOI: 10.24425/amm.2023.146187
M. Łucarz, M. Brzeziński
The aim of the study was to determine the influence of the amount of a commonly used binder in foundry work, furfuryl resin – on the course of the thermal regeneration of used moulding sand. The thermal regeneration procedure was carried out at a temperature of 525°c, the required temperature determined according to a specific procedure, and a lower and less effective tem - perature of 400°c. On the basis of the ignition losses, the influence of the regeneration temperature on the effects of the procedures carried out was compared. it was found that 400°c was too low to effectively clean the binder matrix, but that the more resin in the spent sand, the more intense the cleaning effect. When the required regeneration temperature for furfuryl resin of 523°c was used, higher binder degradation kinetics were observed due to the additional energy supplied to the process from the combustion of a large amount of organic material in the moulding sand.
{"title":"Influence of the Amount of Resin in the Spent Furfuryl Mass on the Thermal Regeneration Process","authors":"M. Łucarz, M. Brzeziński","doi":"10.24425/amm.2023.146187","DOIUrl":"https://doi.org/10.24425/amm.2023.146187","url":null,"abstract":"The aim of the study was to determine the influence of the amount of a commonly used binder in foundry work, furfuryl resin – on the course of the thermal regeneration of used moulding sand. The thermal regeneration procedure was carried out at a temperature of 525°c, the required temperature determined according to a specific procedure, and a lower and less effective tem - perature of 400°c. On the basis of the ignition losses, the influence of the regeneration temperature on the effects of the procedures carried out was compared. it was found that 400°c was too low to effectively clean the binder matrix, but that the more resin in the spent sand, the more intense the cleaning effect. When the required regeneration temperature for furfuryl resin of 523°c was used, higher binder degradation kinetics were observed due to the additional energy supplied to the process from the combustion of a large amount of organic material in the moulding sand.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 3","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138961370","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 : 2023-12-19DOI: 10.24425/amm.2023.146212
W. Zhang, houlachi, S. Haskouri, E. ghali
in zinc electrowinning, small amounts of manganese ions additives are needed in the electrolyte to reduce the corrosion of anodes and minimize the contamination of cathodic zinc by dissolved lead. however, excess manganese oxide could cover the dimensionally stable anodes (DSa) surface and decrease their service life. additives of phosphoric acid are put in the electrolyte to complex the manganic Mn 3+ ion and hence reduce its disproportionation to Mno 2 . in the investigation, phosphoric acid was added to sulfuric acid or zinc electrolytes, and conventional and recent electrochemical measurements were carried out to examine electrochemical behaviour of DSa (Ti/iro 2 -Ta 2 o 5 ) anode during zinc electrolysis at 48 ma/cm 2 and 39°c. it was observed that the anodic potentials of DSa anodes were lower by 27 mV after 5 h polarization in the zinc electrolyte containing 35 g/l phosphoric acid at 39°c. Electrochemical impedance measurements show that the addition of 35 ml/l h 3 Po 4 to the zinc electrolyte can increase impedance resistances of the DSa mesh anodes. cyclic voltammogram studies (cV) at a scan rate of 5 mV/s without agitation show that the oxidation peak in the solution with 35 ml/l phosphoric acid addition is highest, followed by that with 17 ml/l phosphoric acid addition and that without addition of phosphoric acid.
在锌电积过程中，需要在电解液中加入少量锰离子添加剂，以减少阳极的腐蚀，并将溶解铅对阴极锌的污染降至最低。然而，过量的氧化锰会覆盖尺寸稳定的阳极（DSa）表面，从而降低其使用寿命。在这项研究中，在硫酸或锌电解液中添加了磷酸，并进行了传统和最新的电化学测量，以检验 DSa（Ti/Iro 2 -Ta 2 o 5）阳极在 48 ma/cm 2 和 39°c 下进行锌电解时的电化学行为。电化学阻抗测量结果表明，在锌电解液中添加 35 毫升/升的 h 3 Po 4 可以增加 DSa 网状阳极的阻抗。在不搅拌的情况下，以 5 毫伏/秒的扫描速率进行的循环伏安图研究（cV）表明，添加 35 毫升/升磷酸的溶液中的氧化峰最高，其次是添加 17 毫升/升磷酸的溶液和不添加磷酸的溶液。
{"title":"Study on Electrochemical Performance of Dimensionally Stable Anodes during Zinc Electrowinning","authors":"W. Zhang, houlachi, S. Haskouri, E. ghali","doi":"10.24425/amm.2023.146212","DOIUrl":"https://doi.org/10.24425/amm.2023.146212","url":null,"abstract":"in zinc electrowinning, small amounts of manganese ions additives are needed in the electrolyte to reduce the corrosion of anodes and minimize the contamination of cathodic zinc by dissolved lead. however, excess manganese oxide could cover the dimensionally stable anodes (DSa) surface and decrease their service life. additives of phosphoric acid are put in the electrolyte to complex the manganic Mn 3+ ion and hence reduce its disproportionation to Mno 2 . in the investigation, phosphoric acid was added to sulfuric acid or zinc electrolytes, and conventional and recent electrochemical measurements were carried out to examine electrochemical behaviour of DSa (Ti/iro 2 -Ta 2 o 5 ) anode during zinc electrolysis at 48 ma/cm 2 and 39°c. it was observed that the anodic potentials of DSa anodes were lower by 27 mV after 5 h polarization in the zinc electrolyte containing 35 g/l phosphoric acid at 39°c. Electrochemical impedance measurements show that the addition of 35 ml/l h 3 Po 4 to the zinc electrolyte can increase impedance resistances of the DSa mesh anodes. cyclic voltammogram studies (cV) at a scan rate of 5 mV/s without agitation show that the oxidation peak in the solution with 35 ml/l phosphoric acid addition is highest, followed by that with 17 ml/l phosphoric acid addition and that without addition of phosphoric acid.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 4","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138962059","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 : 2023-12-19DOI: 10.24425/amm.2023.146213
M.Á. Rubio-PadRón, A. EchaRtEa-REyEs, A. C. aRRiaga, E. Rocha-RangEl
AlloyS through the powder metallurgy technique, alloys of the eutectic composition of the Zn-al system were manufactured (22.3 wt.%al), reinforced with ag additions (0.5, 1, 2.5, 5 wt.%), with subsequent annealing heat treatment at three different temperatures; 100, 150 and 200°c for 1 hr. X-ray diffraction, optical microscopy and mechanical tests were performed on the resulting samples. the addition of ag favors the formation of alpha and beta compounds with al and Zn respectively, which improves the compressive strength of the alloy. however, with the presence of ag the hardness is decreased. on the other hand, the application of an annealing heat treatment, shows no significant effect on the evaluated properties of the alloy. the microstructure of the alloys resulted in the presence of very small grains smaller than 1 mm and with rounded morphology.
{"title":"Effect of Annealing and Silver Content on the Mechanical Properties of Zn-Al-Ag Alloys","authors":"M.Á. Rubio-PadRón, A. EchaRtEa-REyEs, A. C. aRRiaga, E. Rocha-RangEl","doi":"10.24425/amm.2023.146213","DOIUrl":"https://doi.org/10.24425/amm.2023.146213","url":null,"abstract":"AlloyS through the powder metallurgy technique, alloys of the eutectic composition of the Zn-al system were manufactured (22.3 wt.%al), reinforced with ag additions (0.5, 1, 2.5, 5 wt.%), with subsequent annealing heat treatment at three different temperatures; 100, 150 and 200°c for 1 hr. X-ray diffraction, optical microscopy and mechanical tests were performed on the resulting samples. the addition of ag favors the formation of alpha and beta compounds with al and Zn respectively, which improves the compressive strength of the alloy. however, with the presence of ag the hardness is decreased. on the other hand, the application of an annealing heat treatment, shows no significant effect on the evaluated properties of the alloy. the microstructure of the alloys resulted in the presence of very small grains smaller than 1 mm and with rounded morphology.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 4","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963149","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 : 2023-12-19DOI: 10.24425/amm.2023.146198
S. Zhang, Q. hou, Y. Jiang
in this work, a new supplementary formula was introduced to modify the Kerner model. This supplementary formula enable the Kerner model to predict the thermal expansion coefficient of multi-phase reinforced composites by normalization of the thermal expansion coefficient, bulk modulus, and shear modulus of the reinforcements. For comparison, the modified Kerner model as well as modified Schapery, the rule of mixtures, and Turner models were used to predict the thermal expansion coefficient of multi-phase reinforced composites 6092 Aluminum Alloy/silicon carbide/β-eucryptite. The results confirm the robustness of the modified Kerner model for predicting the thermal expansion coefficient of composites with multi-phase near-spherical inclusions. it may provide a fine selection to predict the thermal expansion coefficient of multi-phase reinforced metal matrix composites which cannot predict efficiently before.
{"title":"A Modified Kerner Model to Predict the Thermal Expansion Coefficient of Multi-Phase Reinforced Composites Al6092/SiC/LAS","authors":"S. Zhang, Q. hou, Y. Jiang","doi":"10.24425/amm.2023.146198","DOIUrl":"https://doi.org/10.24425/amm.2023.146198","url":null,"abstract":"in this work, a new supplementary formula was introduced to modify the Kerner model. This supplementary formula enable the Kerner model to predict the thermal expansion coefficient of multi-phase reinforced composites by normalization of the thermal expansion coefficient, bulk modulus, and shear modulus of the reinforcements. For comparison, the modified Kerner model as well as modified Schapery, the rule of mixtures, and Turner models were used to predict the thermal expansion coefficient of multi-phase reinforced composites 6092 Aluminum Alloy/silicon carbide/β-eucryptite. The results confirm the robustness of the modified Kerner model for predicting the thermal expansion coefficient of composites with multi-phase near-spherical inclusions. it may provide a fine selection to predict the thermal expansion coefficient of multi-phase reinforced metal matrix composites which cannot predict efficiently before.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 16","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138959894","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 : 2023-12-19DOI: 10.24425/amm.2023.146207
{"title":"Effect of Final Rolling Temperature on Microstructure, Properties and Texture of Hot Rolled Strip by New Endless Rolled Line","authors":"","doi":"10.24425/amm.2023.146207","DOIUrl":"https://doi.org/10.24425/amm.2023.146207","url":null,"abstract":"","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":" 45","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138960742","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 : 2023-11-06DOI: innovation program under the Marie Sklodowska-Curie grant agreement No. 665778
10.24425/123814
E. Jabłońska-Stencel, W. Pakieła, J. Żmudzki, J. Kasperski, G. Chladek
{"title":"Influence of Chemical Composition on the Properties of Experimental Silicone-Based Soft Lining Composites","authors":"E. Jabłońska-Stencel, W. Pakieła, J. Żmudzki, J. Kasperski, G. Chladek","doi":"innovation program under the Marie Sklodowska-Curie grant agreement No. 665778\r\n10.24425/123814","DOIUrl":"https://doi.org/innovation program under the Marie Sklodowska-Curie grant agreement No. 665778\r\n10.24425/123814","url":null,"abstract":"","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":"5 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135544910","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 : 2023-11-06DOI: 10.24425/amm.2023.145460
The research presented in detail in this scientific paper refers to the modelling of process parameters for natural gas transmission in a centralized system. The method of the factorial experiment was used to model some parameters considered to be vital, namely the gas temperature, the air temperature as well as a certain correction factor on the flow delivered to the population. The study was conducted by accessing information provided by a regulation-measurement station that delivers gas to an important locality in a locality in central Romania. experimental data collected over 24 hours on a summer day but also on a winter day were used. After a previous study with classical experimental research methods, the factorial experiment was used, which allows the delivery of much more detailed information and the graphical representations are much more precise and detailed, in other words, relevant and useful conclusions can be obtained on objective studied in the research approached.
{"title":"Modelling the Natural Gas Transportation Process using the Factorial Experiment Method","authors":"","doi":"10.24425/amm.2023.145460","DOIUrl":"https://doi.org/10.24425/amm.2023.145460","url":null,"abstract":"The research presented in detail in this scientific paper refers to the modelling of process parameters for natural gas transmission in a centralized system. The method of the factorial experiment was used to model some parameters considered to be vital, namely the gas temperature, the air temperature as well as a certain correction factor on the flow delivered to the population. The study was conducted by accessing information provided by a regulation-measurement station that delivers gas to an important locality in a locality in central Romania. experimental data collected over 24 hours on a summer day but also on a winter day were used. After a previous study with classical experimental research methods, the factorial experiment was used, which allows the delivery of much more detailed information and the graphical representations are much more precise and detailed, in other words, relevant and useful conclusions can be obtained on objective studied in the research approached.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":"30 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135584167","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 : 2023-11-06DOI: 10.24425/amm.2023.145455
The machining residual stress produced in the cutting process of aluminum alloy parts can easily lead to a scrap of the processed parts. in order to reduce the residual stress of aluminum alloy in the milling process, based on the Taguchi-grey relational approach, the effects of different milling parameters on the residual stress and surface roughness of 2a12 aluminum alloy were studied. To reduce the residual stress and surface roughness of 2a12 aluminum alloy, optimized milling parameters were obtained. To further reduce the milling residual stress of 2a12 aluminum alloy, the samples processed by the optimized milling parameters were treated by cryogenic treatment and artificial aging. The residual stress of the sample was measured by the blind hole drilling method, and the evolution mechanism of the microstructure to reduce the machining residual stress was revealed. The results show that the combination of deep cooling treatment and oil bath aging can effectively reduce the residual stress on the machined surface of the aluminum alloy and facilitate a more uniform distribution of the residual stress inside the specimen. The effect of the coarse second phase on the residual stress in the microstructure is not significant, and the fine and diffusely distributed precipitation phase is beneficial to the reduction of the residual stress in the aluminum alloy.
{"title":"Research on Reducing Residual Stress in Milling of Aluminum Alloy","authors":"","doi":"10.24425/amm.2023.145455","DOIUrl":"https://doi.org/10.24425/amm.2023.145455","url":null,"abstract":"The machining residual stress produced in the cutting process of aluminum alloy parts can easily lead to a scrap of the processed parts. in order to reduce the residual stress of aluminum alloy in the milling process, based on the Taguchi-grey relational approach, the effects of different milling parameters on the residual stress and surface roughness of 2a12 aluminum alloy were studied. To reduce the residual stress and surface roughness of 2a12 aluminum alloy, optimized milling parameters were obtained. To further reduce the milling residual stress of 2a12 aluminum alloy, the samples processed by the optimized milling parameters were treated by cryogenic treatment and artificial aging. The residual stress of the sample was measured by the blind hole drilling method, and the evolution mechanism of the microstructure to reduce the machining residual stress was revealed. The results show that the combination of deep cooling treatment and oil bath aging can effectively reduce the residual stress on the machined surface of the aluminum alloy and facilitate a more uniform distribution of the residual stress inside the specimen. The effect of the coarse second phase on the residual stress in the microstructure is not significant, and the fine and diffusely distributed precipitation phase is beneficial to the reduction of the residual stress in the aluminum alloy.","PeriodicalId":8304,"journal":{"name":"Archives of Metallurgy and Materials","volume":"30 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135584171","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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