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合金工具鋼中の水素拡散に及ぼす焼入れ焼戻し組織
http://hdl.handle.net/10069/23931
http://hdl.handle.net/10069/239315e0bdb5d-5dee-411f-9ffb-ef800fd873c0
名前 / ファイル | ライセンス | アクション |
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kogaku00_11_15.pdf (5.4 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-09-15 | |||||
タイトル | ||||||
タイトル | 合金工具鋼中の水素拡散に及ぼす焼入れ焼戻し組織 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
坂本, 芳一
× 坂本, 芳一× 高尾, 慶蔵× 高尾, 幸博 |
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著者別名 | ||||||
姓名 | Sakamoto, Yoshiichi | |||||
著者別名 | ||||||
姓名 | Takao, Keizo | |||||
著者別名 | ||||||
姓名 | Takao, Yukihiro | |||||
その他のタイトル | ||||||
その他のタイトル | Diffusion of Hydrogen in Quenched and Tempered Alloy Tool Steels | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The effect of quenched and tempered microstructures on the diffusion coefficient and solubility of hydrogen in the commercial alloy tool steels have been investigated at room temperature by means of the electrochemical permeation technique. The results obtained are as follows; (1) The as-quenched structure of martensite plus undissolved carbides gives a low diffusion coefficient, and the diffusion coefficient does not show the remarkable change with tempering temperature up to 300℃, after which in the case of SKS 3 steel, it increases with increasing temperature. However, in the case of SKD 4 and SKD 11 steels, the diffusion coefficient decreases with increasing temperature, reaching a minimum around 600℃ and 500℃ respectively and these decreases in diffusivity correspond to the "secondary hardening" in the tempering curve. (2) The solubility of hydrogen is high for the structure of quenched martensite plus undissolved carbides and there is an opposite relation between the diffusion coefficient and solubility, when the steels are tempered. (3) The variations in diffusivity and solubility can be explained in terms of hydrogen trapping process involving the lattice imperfections such as dislocations, faults, lattice vacancies and subgrain boundaries etc., introduced by martensitic transformation and or precipitation of carbides on tempering, togethet with the interfaces such as quenched martensite/undissolved carbides and the ferrite/precipitated carbides, depending upon tempering temperature. | |||||
書誌情報 |
長崎大学工学部研究報告 en : Reports of the Faculty of Engineering, Nagasaki University 号 11, p. 107-114, 発行日 1978-07 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 02860902 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18805574 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178418 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 長崎大学工学部 | |||||
出版者別言語 | ||||||
Faculty of Engineering, Nagasaki University | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学工学部研究報告, (11), pp.107-114; 1978 |