Pub Date : 2023-01-01DOI: 10.2320/jinstmet.j2022044
Kosuke Takahashi, Ryoji Sanekata, Takashi Nagai
{"title":"酸化カルシウムを用いた酸化発生用電極からのイリジウムの揮発分離回収法","authors":"Kosuke Takahashi, Ryoji Sanekata, Takashi Nagai","doi":"10.2320/jinstmet.j2022044","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022044","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75126725","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}
Pub Date : 2023-01-01DOI: 10.2320/jinstmet.jbw202204
Kyohei Numakura, Kazumasa Ohtaka, T. Murakami, K. Shimizu, Y. Kamada, Takeshi Seo, Yoshitaka Iwase, Zhong-Zhi Zhang
{"title":"Correlation between Vickers Hardness and Electromagnetic Properties of Automotive Die-Quenched Steel under Various Die Temperatures","authors":"Kyohei Numakura, Kazumasa Ohtaka, T. Murakami, K. Shimizu, Y. Kamada, Takeshi Seo, Yoshitaka Iwase, Zhong-Zhi Zhang","doi":"10.2320/jinstmet.jbw202204","DOIUrl":"https://doi.org/10.2320/jinstmet.jbw202204","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"165 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77302386","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}
Pub Date : 2023-01-01DOI: 10.2320/jinstmet.jc202101
K. Horikawa, Hideki Kuwata, N. Fukumuro, M. Hino
{"title":"Suppression of Hydrogen Embrittlement of Al-Zn-Mg Based Alloys by Means of Surface Zinc Plating","authors":"K. Horikawa, Hideki Kuwata, N. Fukumuro, M. Hino","doi":"10.2320/jinstmet.jc202101","DOIUrl":"https://doi.org/10.2320/jinstmet.jc202101","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90593032","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}
Pub Date : 2023-01-01DOI: 10.2320/jinstmet.j2022022
Naoya Saeki, M. Nakamoto, Toshihiro Tanaka
{"title":"Calculation of Standard Entropy of Binary Solid Compounds by Neural Network Computation","authors":"Naoya Saeki, M. Nakamoto, Toshihiro Tanaka","doi":"10.2320/jinstmet.j2022022","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022022","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85565686","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}
Pub Date : 2023-01-01DOI: 10.2320/jinstmet.j2022025
T. Ohmura, M. Wakeda
{"title":"Nano Mechanical Characterization and Physical Modeling of Plastic Deformation Chapter 1: Dislocation-Grain Boundary Interaction as a Strengthening Factor","authors":"T. Ohmura, M. Wakeda","doi":"10.2320/jinstmet.j2022025","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022025","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86497241","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}
Pub Date : 2023-01-01DOI: 10.2320/jinstmet.j2022049
Yasutoshi Hideshima, F. Maeda, Tadao Fukuta, K. Ozaki
{"title":"Effect of Silicon Addition on Microstructure, Hardness and Young’s Modulus of Injection Molded AZ91D Alloy","authors":"Yasutoshi Hideshima, F. Maeda, Tadao Fukuta, K. Ozaki","doi":"10.2320/jinstmet.j2022049","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022049","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80619699","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}
Pub Date : 2022-09-01DOI: 10.2320/jinstmet.j2022010
Takuma Saito, H. Harada, T. Yokokawa, M. Osawa, K. Kawagishi, Shinsuke Suzuki
{"title":"Raft Structure of Nickel Base Single-Crystal Superalloys","authors":"Takuma Saito, H. Harada, T. Yokokawa, M. Osawa, K. Kawagishi, Shinsuke Suzuki","doi":"10.2320/jinstmet.j2022010","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022010","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86038386","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}
Pub Date : 2022-09-01DOI: 10.2320/jinstmet.j2022011
K. Nakasa, Sande Gao, Takashi Kubo, Y. Kitamika, T. Sumomogi
Fabrication of fi ne surface textures is one of the most e ff ective technologies to provide new functions for materials. In this research, argon – ion sputter – etching was applied to an α + β type Ti – 6Al – 4V alloy placed on a SUS304 steel disk at a radio frequency power of 200W, 250W and 300W for 0.9ks to 21.6ks. For the 1013K annealed specimens, fi ne holes smaller than 500nm diameters were densely formed on the surfaces when the sputter power was 250W and sputter time was 0.9ks. However, when the sputter time increased to more than 1.8ks, the holes disappeared and the groups of grain – shaped protrusions were formed in fl at areas. For the 1323K solution – treated specimens, the fi ne holes were also formed at the sputter power of 250W and at a sputter time shorter than 1.8ks. The holes connected to ridge – shaped protrusions with increasing sputter time and fi nally changed to independent and uniformly distributed protrusions. Energy dispersive X – ray analyses revealed an increase in the V and Fe contents on the sputtered surface. This corresponds that the Fe particles arrived from the SUS304 disk dissolved into the alloy and strongly combined with V atoms, which resulted in the selective sputtering of Al and Ti. It is considered that the argon ion radiation has induced the decomposition of surface region to fi ne areas with di ff erent V and Fe contents, and the fi ne holes are formed by preferential sputtering of the lower V and Fe contents areas. ［ doi:10.2320 / jinstmet.J2022011 ］
{"title":"Formation of Fine Holes and Protrusions on Ti-6Al-4V Alloy by Argon-Ion Sputter-Etching","authors":"K. Nakasa, Sande Gao, Takashi Kubo, Y. Kitamika, T. Sumomogi","doi":"10.2320/jinstmet.j2022011","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022011","url":null,"abstract":"Fabrication of fi ne surface textures is one of the most e ff ective technologies to provide new functions for materials. In this research, argon – ion sputter – etching was applied to an α + β type Ti – 6Al – 4V alloy placed on a SUS304 steel disk at a radio frequency power of 200W, 250W and 300W for 0.9ks to 21.6ks. For the 1013K annealed specimens, fi ne holes smaller than 500nm diameters were densely formed on the surfaces when the sputter power was 250W and sputter time was 0.9ks. However, when the sputter time increased to more than 1.8ks, the holes disappeared and the groups of grain – shaped protrusions were formed in fl at areas. For the 1323K solution – treated specimens, the fi ne holes were also formed at the sputter power of 250W and at a sputter time shorter than 1.8ks. The holes connected to ridge – shaped protrusions with increasing sputter time and fi nally changed to independent and uniformly distributed protrusions. Energy dispersive X – ray analyses revealed an increase in the V and Fe contents on the sputtered surface. This corresponds that the Fe particles arrived from the SUS304 disk dissolved into the alloy and strongly combined with V atoms, which resulted in the selective sputtering of Al and Ti. It is considered that the argon ion radiation has induced the decomposition of surface region to fi ne areas with di ff erent V and Fe contents, and the fi ne holes are formed by preferential sputtering of the lower V and Fe contents areas. ［ doi:10.2320 / jinstmet.J2022011 ］","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77716548","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}
Pub Date : 2022-09-01DOI: 10.2320/jinstmet.j2022007
G. Kaneyama, Y. Takigawa
Superplastic bonding was performed using electrodeposited Ni and electrodeposited Ni – B to apply to low – temperature di ff usion bonding of carbon steel. Electrodeposited Ni and Ni – B were bonded at 450 ℃ in air and at a strain rate of 1 × 10 − 4 s − 1 . The shear test measured the bond strength, and the maximum bond strength of 69MPa was obtained. Since the obtained bonding strength at 450 ℃ is comparable to that obtained by di ff usion bonding of carbon steel at 0.5 T m , it is possible to decrease the bonding temperature to 0.4 T m by applying this boning process. The bonding strength depended on the amount of strain and increased as the strain increased in the range of strain 0.2 to 0.4. The voids at the interface shrink by superplastic deformation with grain boundary sliding, and the bonded area increases. In the superplastic bonding of electrodeposited Ni alloys, superplastic deformation e ff ectively shrinks voids with a radius of 1 – 2µm. ［ doi:10.2320 / jinstmet.J2022007 ］
采用电沉积Ni和电沉积Ni - B进行超塑性粘接，应用于碳钢的低温扩散粘接。电沉积Ni和Ni - B在450℃空气中以1 × 10−4 s−1的应变速率键合。剪切试验测定了粘结强度，得到最大粘结强度为69MPa。由于在450℃下得到的键合强度与碳钢在0.5 T m下的扩散键合强度相当，因此采用这种焊接工艺可以将键合温度降低到0.4 T m。结合强度与应变大小有关，在应变0.2 ~ 0.4范围内随应变的增大而增大。界面处的孔洞随着晶界的滑动发生超塑性变形而缩小，结合面积增大。在电沉积镍合金的超塑性结合中，超塑性变形可以有效地缩小半径为1 ~ 2 μ m的空隙。[doi:10.2320 / jinstmet.]J2022007]
{"title":"Superplastic Bonding of Electrodeposited Nanocrystalline Ni Alloys","authors":"G. Kaneyama, Y. Takigawa","doi":"10.2320/jinstmet.j2022007","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022007","url":null,"abstract":"Superplastic bonding was performed using electrodeposited Ni and electrodeposited Ni – B to apply to low – temperature di ff usion bonding of carbon steel. Electrodeposited Ni and Ni – B were bonded at 450 ℃ in air and at a strain rate of 1 × 10 − 4 s − 1 . The shear test measured the bond strength, and the maximum bond strength of 69MPa was obtained. Since the obtained bonding strength at 450 ℃ is comparable to that obtained by di ff usion bonding of carbon steel at 0.5 T m , it is possible to decrease the bonding temperature to 0.4 T m by applying this boning process. The bonding strength depended on the amount of strain and increased as the strain increased in the range of strain 0.2 to 0.4. The voids at the interface shrink by superplastic deformation with grain boundary sliding, and the bonded area increases. In the superplastic bonding of electrodeposited Ni alloys, superplastic deformation e ff ectively shrinks voids with a radius of 1 – 2µm. ［ doi:10.2320 / jinstmet.J2022007 ］","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91428319","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}
Pub Date : 2022-08-01DOI: 10.2320/jinstmet.j2022012
Akihiro Mitsuhara, H. Yukawa, H. Kimizuka
{"title":"Effects of Excess Cu Atoms on Hydrogen Permeability, Solubility, and Diffusivity in Pd-Cu Alloys with B2-Type Crystal Structures","authors":"Akihiro Mitsuhara, H. Yukawa, H. Kimizuka","doi":"10.2320/jinstmet.j2022012","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022012","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74905981","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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