{"title":"Comparison between microstructure characteristics and joint performance of AZ31 magnesium alloy welded by TIG and friction stir welding (FSW) processes","authors":"A. Şık","doi":"10.4149/km_2013_3_197","DOIUrl":"https://doi.org/10.4149/km_2013_3_197","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81280188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bulk metallic glasses (BMGs) generally fail in a brittle manner at room temperature upon uniaxial tensile loading. In the present work, we disclose that high microstructural heterogeneity fabricated in high energy glass could obviously enhance the macroscopic tensile plasticity of BMGs. Such a unique structure can promote the lower formation energy and the dificulty to propagate shear bands, resulting in detectable yielding and certain tensile plasticity. This work may widen the pathway to overcoming the brittleness and is believed to aid in structural application of BMGs greatly. K e y w o r d s: bulk metallic glasses, tensile plasticity, high energy, microstructural heterogeneity
{"title":"Improved tensile plasticity of bulk metallic glasses by heightening microstructural heterogeneity and energy state","authors":"Yu-bai Ma, L. Mei, X. Cui, Fangqiou Zu","doi":"10.4149/km_2021_3_181","DOIUrl":"https://doi.org/10.4149/km_2021_3_181","url":null,"abstract":"Bulk metallic glasses (BMGs) generally fail in a brittle manner at room temperature upon uniaxial tensile loading. In the present work, we disclose that high microstructural heterogeneity fabricated in high energy glass could obviously enhance the macroscopic tensile plasticity of BMGs. Such a unique structure can promote the lower formation energy and the dificulty to propagate shear bands, resulting in detectable yielding and certain tensile plasticity. This work may widen the pathway to overcoming the brittleness and is believed to aid in structural application of BMGs greatly. K e y w o r d s: bulk metallic glasses, tensile plasticity, high energy, microstructural heterogeneity","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81668852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Cincă, D. Raducanu, A. Nocivin, A. Căprarescu, V. Cojocaru
{"title":"intermetallics, thermo-mechanical processing, microstructure, scanning electron microscopy (SEM), XRD spectra, micro-hardness test","authors":"I. Cincă, D. Raducanu, A. Nocivin, A. Căprarescu, V. Cojocaru","doi":"10.4149/km_2014_3_171","DOIUrl":"https://doi.org/10.4149/km_2014_3_171","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84396685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Minimum fusion zone size required to ensure pullout failure mode of resistance spot welds during tensile-shear test","authors":"M. Pouranvari, S. Marashi","doi":"10.4149/km_2010_3_197","DOIUrl":"https://doi.org/10.4149/km_2010_3_197","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80338461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study investigates the weldability, microstructure and mechanical properties of dissimilar AISI 304 and Monel 400 welds using continuous and pulse-current GTA welding processes. Dissimilar joints of AISI 304 and Monel 400 are widely used in the marine and offshore environments, oil and gasification plants. These welding processes are carried out using three filler wires, namely E309L, ENiCu-7 and ENiCrFe-3. Microstructure examination is carried out on these dissimilar weldments. In addition, a comparative analysis on the microhardness, tensile test values on these welds using the above-said filler materials is also discussed. The weldments obtained from ENiCu-7 and ENiCrFe-3 filler wires offer high strength and ductility. These studies would be useful for the fabricators implementing these dissimilar weldments in the offshore applications. K e y w o r d s: dissimilar metal welding, mechanical properties, Monel 400, AISI 304 stainless steel
{"title":"Comparative assessment on microstructure and mechanical properties of continuous and pulse-current GTA welds of AISI 304 and Monel 400","authors":"K. Devendranath, N. Arivazhagan, S. Narayanan","doi":"10.4149/km_2014_5_287","DOIUrl":"https://doi.org/10.4149/km_2014_5_287","url":null,"abstract":"This study investigates the weldability, microstructure and mechanical properties of dissimilar AISI 304 and Monel 400 welds using continuous and pulse-current GTA welding processes. Dissimilar joints of AISI 304 and Monel 400 are widely used in the marine and offshore environments, oil and gasification plants. These welding processes are carried out using three filler wires, namely E309L, ENiCu-7 and ENiCrFe-3. Microstructure examination is carried out on these dissimilar weldments. In addition, a comparative analysis on the microhardness, tensile test values on these welds using the above-said filler materials is also discussed. The weldments obtained from ENiCu-7 and ENiCrFe-3 filler wires offer high strength and ductility. These studies would be useful for the fabricators implementing these dissimilar weldments in the offshore applications. K e y w o r d s: dissimilar metal welding, mechanical properties, Monel 400, AISI 304 stainless steel","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79200062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this study is to determine the possibilities of mass reduce of dynamically loaded aluminum alloy structures. Specimens were prepared from heat-hardened aluminum alloy ASTM 2011. In order to improve the fatigue behavior the Specimens were shot-peened. The experiment was planned using the software package "Design Expert". The research results were used to develop mathematical function among: lifetime, the level of alternating symmetric stress and Almen intensity. These results indicate the possibility of mass reduction of structural elements from ASTM 2011, according to the selected parameters.
{"title":"Shot peening intensity influence on the fatigue behaviour of aluminium alloy ASTM 2011","authors":"D. Zivkovic, Igor Gabrić, Slaven Šitić","doi":"10.4149/km_2013_4_263","DOIUrl":"https://doi.org/10.4149/km_2013_4_263","url":null,"abstract":"The aim of this study is to determine the possibilities of mass reduce of dynamically loaded aluminum alloy structures. Specimens were prepared from heat-hardened aluminum alloy ASTM 2011. In order to improve the fatigue behavior the Specimens were shot-peened. The experiment was planned using the software package \"Design Expert\". The research results were used to develop mathematical function among: lifetime, the level of alternating symmetric stress and Almen intensity. These results indicate the possibility of mass reduction of structural elements from ASTM 2011, according to the selected parameters.","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76632188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Microstructure and mechanical properties of as-cast, as-rolled and as-annealed Mg-8Li-1Al-0.6Ce alloys are studied. The as-cast, as-rolled and as-annealed Mg-8Li-1Al-0.6Ce alloys are composed of α phase (white), β phase (gray), and AlCe phase. The grains are refined when Mg-8Li-1Al-0.6Ce alloy is rolled. The recrystallization of the as-rolled Mg-8Li-1Al-0.6Ce alloy may take place after the annealing procedure. The results of tensile tests show that the as-annealed Mg-8Li-1Al-0.6Ce alloy possesses peak strength and elongation 233.9 MPa and 24.9 %, respectively. K e y w o r d s: Mg-Li alloy, rolling, annealing, microstructure, mechanical properties
{"title":"Effect of deformation and heat treatment on microstructure and mechanical properties of Mg-8Li-1Al-0.6Ce alloy","authors":"L. Hou, X. Meng, R. Wu, M. Zhang","doi":"10.4149/km_2013_1_83","DOIUrl":"https://doi.org/10.4149/km_2013_1_83","url":null,"abstract":"Microstructure and mechanical properties of as-cast, as-rolled and as-annealed Mg-8Li-1Al-0.6Ce alloys are studied. The as-cast, as-rolled and as-annealed Mg-8Li-1Al-0.6Ce alloys are composed of α phase (white), β phase (gray), and AlCe phase. The grains are refined when Mg-8Li-1Al-0.6Ce alloy is rolled. The recrystallization of the as-rolled Mg-8Li-1Al-0.6Ce alloy may take place after the annealing procedure. The results of tensile tests show that the as-annealed Mg-8Li-1Al-0.6Ce alloy possesses peak strength and elongation 233.9 MPa and 24.9 %, respectively. K e y w o r d s: Mg-Li alloy, rolling, annealing, microstructure, mechanical properties","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73849197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Ce on microstructures and mechanical properties of as-cast Mg-8Li-1Al alloys","authors":"M. Zhang, X. Meng, R. Wu, C. Cui, L. Wu","doi":"10.4149/km_2010_3_211","DOIUrl":"https://doi.org/10.4149/km_2010_3_211","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90402143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of ultra-fast cooling on microstructure and mechanical\u0000properties in a plain low carbon steel","authors":"B. Wang, J. Lian, X. H. Liu, G. Wang","doi":"10.4149/km_2014_3_135","DOIUrl":"https://doi.org/10.4149/km_2014_3_135","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88597106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Juan Wang, Zhong Yang, H. Duan, Zhijun Ma, D. Tao, Jian-ping Li
{"title":"Effect of heat treatment on microstructure and thermal expansion properties of as-cast (Al63Cu25Fe12)99Ce1 alloy","authors":"Juan Wang, Zhong Yang, H. Duan, Zhijun Ma, D. Tao, Jian-ping Li","doi":"10.4149/km_2021_6_367","DOIUrl":"https://doi.org/10.4149/km_2021_6_367","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87515994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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