| 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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| 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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