Pub Date : 2023-09-01DOI: 10.2320/matertrans.f-m2023807
Suphattra Sachana, K. Morishita, H. Miyahara
{"title":"Oxide and Heat Treatment Microstructure Evolution of Melted Mark on Copper Wire under Various Heat Treatment Conditions","authors":"Suphattra Sachana, K. Morishita, H. Miyahara","doi":"10.2320/matertrans.f-m2023807","DOIUrl":"https://doi.org/10.2320/matertrans.f-m2023807","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45047819","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}
Early-stage dislocation structures inside dislocation channels of rapid-cooled and tensile-deformed aluminum single crystals were investigated by using the bright field imaging mode in a scanning transmission electron microscope (STEM-BF). Inside dislocation channels, arrays of the prismatic dislocation loops originated from dislocations of the primary slip system, i.e., (1 1 1)[1 0 1], were mainly formed. Dislocations of the primary coplanar slip systems such as (1 1 1)[0 1 1] and (1 1 1)[1 1 0] were activated owing to internal stresses caused by the primary dislocations pile-up inside the cleared channels. The activated primary coplanar dislocations left the dislocation loops elongating along the edge dislocation directions behind them. Inter-dislocation-loop interactions occur especially at the arrays of the prismatic dislocation loops originated from dislocations of the primary slip systems and produce “butterfly shape” dislocation loops. As the “butterfly shape” dislocation loops have “sessile” junctions, they should act as “obstacles” against the following multiplications and glides of the dislocations. When the interactions proceed, “tangled structures” would be formed around the arrays of the prismatic dislocation loops originated from dislocations of the primary slip system.
{"title":"Early-Stage Dislocation Structures inside the Dislocation Channels of Face-Centered-Cubic Metals with Point Defect Clusters","authors":"Kazushige Tokuno, Masatoshi Mitsuhara, Masahiro Hagino","doi":"10.2320/matertrans.mt-m2023032","DOIUrl":"https://doi.org/10.2320/matertrans.mt-m2023032","url":null,"abstract":"Early-stage dislocation structures inside dislocation channels of rapid-cooled and tensile-deformed aluminum single crystals were investigated by using the bright field imaging mode in a scanning transmission electron microscope (STEM-BF). Inside dislocation channels, arrays of the prismatic dislocation loops originated from dislocations of the primary slip system, i.e., (1 1 1)[1 0 1], were mainly formed. Dislocations of the primary coplanar slip systems such as (1 1 1)[0 1 1] and (1 1 1)[1 1 0] were activated owing to internal stresses caused by the primary dislocations pile-up inside the cleared channels. The activated primary coplanar dislocations left the dislocation loops elongating along the edge dislocation directions behind them. Inter-dislocation-loop interactions occur especially at the arrays of the prismatic dislocation loops originated from dislocations of the primary slip systems and produce “butterfly shape” dislocation loops. As the “butterfly shape” dislocation loops have “sessile” junctions, they should act as “obstacles” against the following multiplications and glides of the dislocations. When the interactions proceed, “tangled structures” would be formed around the arrays of the prismatic dislocation loops originated from dislocations of the primary slip system.","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136079325","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mi2022003
GyeongSeok Joo, Y. Song, Minsang Kim, Suwon Park, Jaehyuk Shin, Soon-Mok Choi, Hyun-joo Choi, Sehoon Kim
{"title":"Effect of Mg Content on Precipitation Hardening Behavior of Al–Mg–Si–(Cu) Alloys","authors":"GyeongSeok Joo, Y. Song, Minsang Kim, Suwon Park, Jaehyuk Shin, Soon-Mok Choi, Hyun-joo Choi, Sehoon Kim","doi":"10.2320/matertrans.mt-mi2022003","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mi2022003","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42769441","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mg2022002
N. H. Tiep, B. D. Tu, L. Cuong
{"title":"Arrays of NdFeB Clusters in PDMS Background Used to Levitate T47D Human Cells","authors":"N. H. Tiep, B. D. Tu, L. Cuong","doi":"10.2320/matertrans.mt-mg2022002","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mg2022002","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48444770","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mi2022007
Jun-Ha Jeon, Yoonje Sung, Namhyuk Seo, Jae-Gil Jung, S. Son, Seok-Jae Lee
{"title":"Machine Learning Model and Prediction Mechanisms of Bainite Start Temperature of Low Alloy Steels","authors":"Jun-Ha Jeon, Yoonje Sung, Namhyuk Seo, Jae-Gil Jung, S. Son, Seok-Jae Lee","doi":"10.2320/matertrans.mt-mi2022007","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mi2022007","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43501437","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mg2022017
T.N. Anh Nguyen, Q. Pham, V. Chu, K. T. Do, T. H. Nguyen, H. Pham, M. Goto, M. Fukumoto, Hiroyuki Tomita, Tatsuki Watanabe, H. Kubota, A. Fukushima, Kei Yakushiji, Yoshishige Suzuki
{"title":"Highly Sensitive Detection of Weak Low Frequency Magnetic Fields Using Single Nanoscale Orthogonal MgO Magnetic Tunnel Junctions under a Large Bias Field","authors":"T.N. Anh Nguyen, Q. Pham, V. Chu, K. T. Do, T. H. Nguyen, H. Pham, M. Goto, M. Fukumoto, Hiroyuki Tomita, Tatsuki Watanabe, H. Kubota, A. Fukushima, Kei Yakushiji, Yoshishige Suzuki","doi":"10.2320/matertrans.mt-mg2022017","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mg2022017","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43241157","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mg2022024
Harutaka Saito, Katsuhiro Suzuki, Kazunori Sato, T. Kotani
{"title":"Quasiparticle Self-Consistent GW Analysis of Excited States and Model Construction of 3d2 Luminescent Centers in α-Aluminum Oxide","authors":"Harutaka Saito, Katsuhiro Suzuki, Kazunori Sato, T. Kotani","doi":"10.2320/matertrans.mt-mg2022024","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mg2022024","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41775774","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 : 2023-09-01DOI: 10.2320/matertrans.mt-mg2022018
Wb Wu, J. Kasiuk, J. Przewoźnik, C. Kapusta, I. Svito, K. Tung Do, T. H. Huong Nguyen, H. Manh Dinh, J. Åkerman, T. A. Anh Nguyen
{"title":"Fundamentally Different Magnetoresistance Mechanisms in Related Co/Pd and Co/Pt Multilayers for Spintronic Applications","authors":"Wb Wu, J. Kasiuk, J. Przewoźnik, C. Kapusta, I. Svito, K. Tung Do, T. H. Huong Nguyen, H. Manh Dinh, J. Åkerman, T. A. Anh Nguyen","doi":"10.2320/matertrans.mt-mg2022018","DOIUrl":"https://doi.org/10.2320/matertrans.mt-mg2022018","url":null,"abstract":"","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47003967","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 : 2023-09-01DOI: 10.2320/matertrans.mt-c2023003
Masashi Nishimoto, Izumi Muto, Yu Sugawara
This paper reviews recent studies on the relationships between local electrochemical properties at the steel/inclusion boundary and pitting corrosion resistance of stainless steels. The effect of Mo addition to the steel matrix on the local dissolution behavior at the steel/inclusion boundary is explained. The inhibition of inclusion dissolution is beneficial for improving the pitting corrosion resistance of stainless steels. The importance of spark plasma sintering and microelectrochemical techniques in the research on localized corrosion processes are briefly discussed. We also discuss novel methods for improving the pitting corrosion resistance of stainless steels, such as the addition of corrosion inhibitors.
{"title":"Review—Understanding and Controlling the Electrochemical Properties of Sulfide Inclusions for Improving the Pitting Corrosion Resistance of Stainless Steels","authors":"Masashi Nishimoto, Izumi Muto, Yu Sugawara","doi":"10.2320/matertrans.mt-c2023003","DOIUrl":"https://doi.org/10.2320/matertrans.mt-c2023003","url":null,"abstract":"This paper reviews recent studies on the relationships between local electrochemical properties at the steel/inclusion boundary and pitting corrosion resistance of stainless steels. The effect of Mo addition to the steel matrix on the local dissolution behavior at the steel/inclusion boundary is explained. The inhibition of inclusion dissolution is beneficial for improving the pitting corrosion resistance of stainless steels. The importance of spark plasma sintering and microelectrochemical techniques in the research on localized corrosion processes are briefly discussed. We also discuss novel methods for improving the pitting corrosion resistance of stainless steels, such as the addition of corrosion inhibitors.","PeriodicalId":18402,"journal":{"name":"Materials Transactions","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135830276","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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