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Mechanism of corrosion resistance degradation of Cr-plated parts due to heat treatment and its prevention
http://hdl.handle.net/2297/12312
http://hdl.handle.net/2297/1231259d444ae-aa2c-4ec7-b006-dd9469cb10ed
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
TE-PR-HIROSE-Y-94.pdf (1.2 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-03 | |||||
| タイトル | ||||||
| タイトル | Mechanism of corrosion resistance degradation of Cr-plated parts due to heat treatment and its prevention | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | journal article | |||||
| 著者 |
Kobayashi, Yuichi
× Kobayashi, Yuichi× Nagasawa, Junichi× Sasaki, Toshihiko× Hirose, Yukio |
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| 提供者所属 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 金沢大学大学院自然科学研究科 | |||||
| 書誌情報 |
Materials Science Research International 巻 9, 号 1, p. 94-101, 発行日 2003-03-15 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1341-1683 | |||||
| NCID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA11046472 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.2472/jsms.52.3appendix_94 | |||||
| 出版者 | ||||||
| 出版者 | 日本材料学会 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The mechanism of decrease in the corrosion resistance of Cr-plated parts when they are subjected to a heating process and measures for preventing the degradation are studied. When postfinishing is performed after the Cr-plating process, cracks in the Cr layer are closed as a result of plastic flow on the topmost surface layer. When the residual stress in the Cr layer becomes compressive due to the postfinishing, the cracks are completely closed, resulting in a high corrosion resistance. The residual stress in the Cr layer changes from compressive to tensile following heat treatment. When the residual stress becomes tensile, the cracks in the Cr layer which were closed during postfinishing open once again, resulting in a decrease in the corrosion resistance. We speculated that the change of residual stress from compressive to tensile is caused by the shrinkage of the Cr layer due to heat treatment and the difference in the coefficients of thermal expansion between the substrate (steel) and Cr layer, as well as the release of residual stress generated during processing. In order to prevent the decrease of corrosion resistance under heat treatment, it is effective to apply compressive stress which exceeds the level of change in residual stress due to heat treatment to the Cr layer during postfinishing, after the Cr plating process. | |||||
| 権利 | ||||||
| 権利情報 | 日本材料学会；本文データは日本材料学会の許諾に基づきCiNiiから複製したものである | |||||
| 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 | |||||
| 関連URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://ci.nii.ac.jp/naid/110002284026/ | |||||
