{"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}
{"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}
Undoped and Ti doped ZnO thin films were made by sol-gel spin coating, and the investigation of structural, morphological and optical features was applied as a function of the doping ratio. The films had a polycrystalline ZnO wurtzite crystal structure with (002) preferential direction and film crystallinity decreased with Ti doping content. The SEM studies indicated that the nanoparticle structure of undoped films changed to nano-network like structure with Ti doping. The transmittance and optical band gap of undoped sample firstly increased with 1 at.% Ti doping and then they decreased with higher Ti level. Consequently, the present work suggests that the characteristic properties of ZnO can be tailored with Ti doping and ZnO:Ti films have a potential importance for usage in many technological applications. K e y w o r d s: ZnO, sol-gel preparation, Ti doping, thin films
{"title":"Titanium doping effect on the characteristic properties of sol-gel deposited ZnO thin films","authors":"M. Yilmaz, G. Turgu","doi":"10.4149/m_2015_5_333","DOIUrl":"https://doi.org/10.4149/m_2015_5_333","url":null,"abstract":"Undoped and Ti doped ZnO thin films were made by sol-gel spin coating, and the investigation of structural, morphological and optical features was applied as a function of the doping ratio. The films had a polycrystalline ZnO wurtzite crystal structure with (002) preferential direction and film crystallinity decreased with Ti doping content. The SEM studies indicated that the nanoparticle structure of undoped films changed to nano-network like structure with Ti doping. The transmittance and optical band gap of undoped sample firstly increased with 1 at.% Ti doping and then they decreased with higher Ti level. Consequently, the present work suggests that the characteristic properties of ZnO can be tailored with Ti doping and ZnO:Ti films have a potential importance for usage in many technological applications. K e y w o r d s: ZnO, sol-gel preparation, Ti doping, thin films","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"201 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89094967","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}
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}
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}
{"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}
{"title":"Investigation of the heat treatment effect in milling of K390 powder metallurgical steel","authors":"Ş. Çetinkaya, A. Kaçal","doi":"10.4149/km_2014_4_209","DOIUrl":"https://doi.org/10.4149/km_2014_4_209","url":null,"abstract":"","PeriodicalId":18519,"journal":{"name":"Metallic Materials","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88715442","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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