Pub Date : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2023-075
Satoshi Hasui, Yoshihiko Higuchi
To meet the increasing demand for low-impurity steel products, powder top blowing has been applied to the steelmaking process. Powder reagents penetrating deeper into the molten metal lead to longer resident time and higher efficiency of refining. Many studies have been performed on the basis of cold model experiments with a single liquid phase for clarifying the penetration behavior of the particle. However, the effects of the second liquid phase have been reported little whereas molten slag often exists on the surface of molten metal in the steelmaking process.
{"title":"オイル層で覆われた水浴に侵入する球体の流体力学的挙動","authors":"Satoshi Hasui, Yoshihiko Higuchi","doi":"10.2355/tetsutohagane.tetsu-2023-075","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2023-075","url":null,"abstract":"To meet the increasing demand for low-impurity steel products, powder top blowing has been applied to the steelmaking process. Powder reagents penetrating deeper into the molten metal lead to longer resident time and higher efficiency of refining. Many studies have been performed on the basis of cold model experiments with a single liquid phase for clarifying the penetration behavior of the particle. However, the effects of the second liquid phase have been reported little whereas molten slag often exists on the surface of molten metal in the steelmaking process.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135052803","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2023-012
Koharu Nishio, R. Matsumoto, H. Utsunomiya, Kosuke Hayashi, Yasuyoshi Hidaka, Masaaki Sugiyama
{"title":"熱間圧延中の低炭素鋼板の酸化皮膜の変形に及ぼすマンガンの影響","authors":"Koharu Nishio, R. Matsumoto, H. Utsunomiya, Kosuke Hayashi, Yasuyoshi Hidaka, Masaaki Sugiyama","doi":"10.2355/tetsutohagane.tetsu-2023-012","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2023-012","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"50 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75810869","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 : 2023-01-01DOI: 10.2355/tetsutohagane.109.149
M. Mitsuhara, H. Nakashima
{"title":"Preface to the Special Issue “Fundamental Researches and its Applications for Strengthening in High Temperature Materials”","authors":"M. Mitsuhara, H. Nakashima","doi":"10.2355/tetsutohagane.109.149","DOIUrl":"https://doi.org/10.2355/tetsutohagane.109.149","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"92 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79771767","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-129
Yo Hyodo, Masao Yuga, Yasuyuki Kurihara, T. Doan, T. Sakimoto, Y. Murakami, K. Goto, T. Tagawa
{"title":"Improvement of Fatigue Crack Propagation Property in Low Carbon Steel by Microstructural Control and an Investigation of its Practical Benefit","authors":"Yo Hyodo, Masao Yuga, Yasuyuki Kurihara, T. Doan, T. Sakimoto, Y. Murakami, K. Goto, T. Tagawa","doi":"10.2355/tetsutohagane.tetsu-2022-129","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-129","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"38 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90132741","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-061
Takayuki Iwama, R. Inoue, Kenji Nakase, S. Ueda,
{"title":"Separation of Phosphorus from Phosphorus-concentrated Steelmaking Slag","authors":"Takayuki Iwama, R. Inoue, Kenji Nakase, S. Ueda,","doi":"10.2355/tetsutohagane.tetsu-2022-061","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-061","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"33 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91267455","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2023-092
Ai Goto, Masato Yuya, Kaori Kawano
The effect of boron addition on low cycle bending fatigue strength of carburized steel was investigated. The low-cycle bending fatigue strength of B-added steel was improved compared to SCM420. When the fatigue failure was divided into the crack initiation process and the crack propagation process, the addition of boron did not affect the crack initiation life, but improved the crack propagation life. The presence of boron in B-added steels was evaluated using TOF-SIMS and AES measurements. Grain boundary segregation of boron was not observed in the gas carburized surface layer, but precipitation of BN was observed. On the other hand, grain boundary segregation of boron was observed from the carburized surface layer toward the 400 μm core side. Therefore, it is considered that the grain boundary strengthening effect of boron was not obtained in the carburized surface layer, and the crack initiation life did not change.
{"title":"Effects of Boron Addition on Low Cycle Bending Fatigue Strength of Gas Carburized Low Alloy Steel","authors":"Ai Goto, Masato Yuya, Kaori Kawano","doi":"10.2355/tetsutohagane.tetsu-2023-092","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2023-092","url":null,"abstract":"The effect of boron addition on low cycle bending fatigue strength of carburized steel was investigated. The low-cycle bending fatigue strength of B-added steel was improved compared to SCM420. When the fatigue failure was divided into the crack initiation process and the crack propagation process, the addition of boron did not affect the crack initiation life, but improved the crack propagation life. The presence of boron in B-added steels was evaluated using TOF-SIMS and AES measurements. Grain boundary segregation of boron was not observed in the gas carburized surface layer, but precipitation of BN was observed. On the other hand, grain boundary segregation of boron was observed from the carburized surface layer toward the 400 μm core side. Therefore, it is considered that the grain boundary strengthening effect of boron was not obtained in the carburized surface layer, and the crack initiation life did not change.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135508163","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-124
Takayuki Yonezawa, Takashige Mori, S. Tsutsumi
{"title":"Effects of Cyclic Softening on Fatigue Crack Propagation Properties of Steel","authors":"Takayuki Yonezawa, Takashige Mori, S. Tsutsumi","doi":"10.2355/tetsutohagane.tetsu-2022-124","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-124","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"72 3 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77177366","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-121
Kota Moriya, Koichi Takahashi, Akinori Murao, Takeshi Sato, K. Fukada
{"title":"高炉羽口におけるラジカル化学発光測定を活用した微粉炭燃焼率推定手法の開発","authors":"Kota Moriya, Koichi Takahashi, Akinori Murao, Takeshi Sato, K. Fukada","doi":"10.2355/tetsutohagane.tetsu-2022-121","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-121","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"229 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74470104","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-132
Masahiro Shimura, Daisuke Kasai, Takayuki Otsuka
{"title":"高張力鋼の冷間圧延におけるスリップ発生機構の解明","authors":"Masahiro Shimura, Daisuke Kasai, Takayuki Otsuka","doi":"10.2355/tetsutohagane.tetsu-2022-132","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-132","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"131 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85643351","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 : 2023-01-01DOI: 10.2355/tetsutohagane.tetsu-2022-067
K. Ishikawa, M. Fujioka, M. Hoshino, J. Takahashi, Ryuichi Homma, K. Ushioda
{"title":"Effect of Molybdenum Contents on Hardenability and Precipitation Behaviors in B-added Steels Austenitized at High Temperature","authors":"K. Ishikawa, M. Fujioka, M. Hoshino, J. Takahashi, Ryuichi Homma, K. Ushioda","doi":"10.2355/tetsutohagane.tetsu-2022-067","DOIUrl":"https://doi.org/10.2355/tetsutohagane.tetsu-2022-067","url":null,"abstract":"","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":"30 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87843855","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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