Pub Date : 2022-01-01DOI: 10.2320/jinstmet.j2021044
Fuki Naito, K. Morita, D. Terada
The e ff ect of the DC electric fi eld / current on the crack healing behavior was examined in 8mol ％ yttria – stabilized cubic zirconia ( 8Y – CSZ ) polycrystals. Microcracks formed in 8Y – CSZ using the micro Vickers technique was healed under the fl ash conditions at sample temperatures of 1040 ℃ and 1230 ℃ by controlling the DC electric fi eld / current. At high temperatures, releasing the external energies, which were stored by the indentation as the elastic / plastic strains and new crack surfaces, would be driving forces for the crack healing. Thus, the crack healing takes place some extent even for the static annealing without the DC electric fi eld / current and the healing length becomes larger in the cracks formed at the larger loads. As compared to the static annealing, the healing behavior was accelerated by several times under the fl ash event condition even at the same temperatures. This suggests that the accelerated healing behavior cannot be explained only by the thermal activated processes, but ascribed to non – thermal processes accelerated by the fl ash event. Since the grain growth behavior was accelerated under the fl ash condition, the fl ash event enhanced the healing behavior of the microcrack damages by accelerating the di ff usional processes.
{"title":"Micro-Crack Healing in Cubic Zirconia (8Y-CSZ) Using Flash Event","authors":"Fuki Naito, K. Morita, D. Terada","doi":"10.2320/jinstmet.j2021044","DOIUrl":"https://doi.org/10.2320/jinstmet.j2021044","url":null,"abstract":"The e ff ect of the DC electric fi eld / current on the crack healing behavior was examined in 8mol ％ yttria – stabilized cubic zirconia ( 8Y – CSZ ) polycrystals. Microcracks formed in 8Y – CSZ using the micro Vickers technique was healed under the fl ash conditions at sample temperatures of 1040 ℃ and 1230 ℃ by controlling the DC electric fi eld / current. At high temperatures, releasing the external energies, which were stored by the indentation as the elastic / plastic strains and new crack surfaces, would be driving forces for the crack healing. Thus, the crack healing takes place some extent even for the static annealing without the DC electric fi eld / current and the healing length becomes larger in the cracks formed at the larger loads. As compared to the static annealing, the healing behavior was accelerated by several times under the fl ash event condition even at the same temperatures. This suggests that the accelerated healing behavior cannot be explained only by the thermal activated processes, but ascribed to non – thermal processes accelerated by the fl ash event. Since the grain growth behavior was accelerated under the fl ash condition, the fl ash event enhanced the healing behavior of the microcrack damages by accelerating the di ff usional processes.","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80473766","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022004
T. Miura, H. Fujii, K. Ushioda
{"title":"Prediction of Material Flow Behavior in Stir Zones of Friction Stir Welded 6％Ni Carbon Steel Based on Texture Analysis","authors":"T. Miura, H. Fujii, K. Ushioda","doi":"10.2320/jinstmet.j2022004","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022004","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87089517","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022005
Fumio Ogawa, Ryota Kataoka, M. Kawabata, Takamoto Itoh, K. Ameyama
{"title":"Fabrication of Magnesium Alloy AZ31B with High Strength and Ductility via Harmonic Structural Design","authors":"Fumio Ogawa, Ryota Kataoka, M. Kawabata, Takamoto Itoh, K. Ameyama","doi":"10.2320/jinstmet.j2022005","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022005","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85291904","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022019
Yasutoshi Hideshima, F. Maeda, Tadao Fukuta, K. Ozaki
{"title":"Effect of Graphite Addition on Microstructure, Mechanical Properties and Thermal Properties of Injection Molded AZ91D Alloy","authors":"Yasutoshi Hideshima, F. Maeda, Tadao Fukuta, K. Ozaki","doi":"10.2320/jinstmet.j2022019","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022019","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83990880","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022039
K. Koshiba, K. Tatsumi
{"title":"The Effect of Aluminum Oxide Layer and Annealing Atmosphere on Diffusion Behavior of Ni/Al Film","authors":"K. Koshiba, K. Tatsumi","doi":"10.2320/jinstmet.j2022039","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022039","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74567219","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022013
Tomoya Hashimoto, Tomoya Nakamura, N. Fukumuro, S. Yae
{"title":"Analysis of Existing States of Co-Deposited Hydrogen in Electrodeposited Pd Films","authors":"Tomoya Hashimoto, Tomoya Nakamura, N. Fukumuro, S. Yae","doi":"10.2320/jinstmet.j2022013","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022013","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85004899","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022020
Nobuaki Takeuchi, D. Ando, J. Koike, Y. Sutou
{"title":"Low Temperature Oxidation-Sintering Behaviors of Cu Fine Particles","authors":"Nobuaki Takeuchi, D. Ando, J. Koike, Y. Sutou","doi":"10.2320/jinstmet.j2022020","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022020","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82998831","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 : 2022-01-01DOI: 10.2320/jinstmet.j2022008
Kaito Ogawahara, M. Ueda
{"title":"The Effect of Tungsten Addition on Steam Oxidation Behavior of the Fe-20Cr-35Ni (at％) Alloy at 1073 K","authors":"Kaito Ogawahara, M. Ueda","doi":"10.2320/jinstmet.j2022008","DOIUrl":"https://doi.org/10.2320/jinstmet.j2022008","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73538494","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":"Leaching of Nickel and Cobalt Mixed Sulfide Using Organic Aqua Regia and Recovery by Solvent Extraction","authors":"Kazuki Uda, Akihiro Yoshimura, Yasunari Matsuno, Satoshi Asano","doi":"10.2320/jinstmet.j2021051","DOIUrl":"https://doi.org/10.2320/jinstmet.j2021051","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89257896","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 : 2022-01-01DOI: 10.2320/jinstmet.j2021048
Y. Matsushima, Y. Hangai, H. Mitsugi, H. Fujii
{"title":"Effects of Rotational Speed and Processing Time on Bonding Strength of Porous Aluminum and Thermoplastic Resin during Friction Welding","authors":"Y. Matsushima, Y. Hangai, H. Mitsugi, H. Fujii","doi":"10.2320/jinstmet.j2021048","DOIUrl":"https://doi.org/10.2320/jinstmet.j2021048","url":null,"abstract":"","PeriodicalId":17322,"journal":{"name":"Journal of the Japan Institute of Metals and Materials","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85897967","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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