Effect of Nickel Co-Deposition Amount in Zn-Ni Alloy Plating on Hydrogen Embrittlement of High Strength Steel
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- HINO Makoto
- Graduate School of Engineering, Hiroshima Institute of Technology
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- OGAWA Kosei
- Faculty of Engineering, Hiroshima Institute of Technology
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- ASADA Ayumu
- Faculty of Engineering, Hiroshima Institute of Technology
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- KAWAUE Kota
- Graduate School of Engineering, Hiroshima Institute of Technology
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- NOZAKI Masafumi
- Okuno Chemical Industries Co., Ltd.
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- HORIKAWA Keitaro
- Graduate School of Engineering Science, Osaka University
Bibliographic Information
- Other Title
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- 高強度鋼の水素脆性に及ぼすZn-Ni合金めっきにおけるNi共析量の影響
Abstract
<p>A method of using three-point bending tests to evaluate hydrogen embrittlement was applied to clarify effects of nickel co-deposition amounts in Zn-Ni alloy electroplating on hydrogen embrittlement of SK85 steel sheets. Hydrogen embrittlement occurred in all plating immediately after plating, irrespective of the nickel co-deposition amount. Diffusive hydrogen, which is responsible for hydrogen embrittlement, was detected in each plated specimen before baking at around 200 ℃. That finding is consistent with hydrogen embrittlement results. However, after baking, diffusible hydrogen at nearly 200 ℃, which is responsible for hydrogen embrittlement, was desorbed from all specimens. These results, which demonstrate that zinc plating without detectable diffusible hydrogen exhibits hydrogen embrittlement, support the hydrogen vacancy cluster theory: hydrogen absorbed during plating generates hydrogen vacancy clusters, which form voids and engender fracture.</p>
Journal
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- Journal of The Surface Finishing Society of Japan
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Journal of The Surface Finishing Society of Japan 75 (5), 226-230, 2024-05-01
The Surface Finishing Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390018594844138752
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- ISSN
- 18843409
- 09151869
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed