Improvement of corrosion resistance and investigation of hardening mechanism for S-phase of a sprayed stainless steel coating
| Project/Area Number |
25420747
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Composite materials/Surface and interface engineering
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| Research Institution | Osaka Research Institute of Industrial Science and Technology |
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Principal Investigator |
ADACHI Shinichiro 地方独立行政法人大阪府立産業技術総合研究所, その他部局等, 研究員 (50359410)
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| Co-Investigator(Kenkyū-buntansha) |
UEDA Nobuhiro 大阪府立産業技術総合研究所, 主任研究員 (90359365)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | コールドスプレー / 低温プラズマ窒化 / 低温プラズマ浸炭 / オーステナイト系ステンレス鋼 / 耐腐食性 / 耐摩耗性 / 表面処理 / 耐摩耗 / 耐腐食 |
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| Outline of Final Research Achievements |
We examined plasma nitriding and carburizing at temperatures below 450℃ for cold sprayed SUS 316L austenitic stainless steel coatings to enhance corrosion and wear resistance, by forming expanded austenite (known as S-phase), that is dissolved excess nitrogen or carbon in the austenite lattice. The cold sprayed SUS316L coatings could be hardened by the formation of S-phase due to the presence of strong strain. The cold sprayed SUS316L coatings included little oxide differing from conventional thermal spray coatings, moreover the S-phase has superior corrosion resistance to restrict pitting corrosion in NaCl solution.
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Report
(5 results)
Research Products
(10 results)
