Laser surface alloying of SUS316 stainless steel with Al-Si; Effect of substrate temperature on structure and properties of modified layer

Zherebtsov, S.*; Maekawa, Katsuhiro*; Hayashi, Terutake*; Futakawa, Masatoshi

The effect of temperature on the structure and properties of the type 316 stainless steel alloyed with Al-Si has been reported in the present paper. It has been found that four different types of structure are formed in the alloyed zone depending on the temperature of the substrate. These structures differ from each other in phase composition, microhardness and relation to cracking. Hard, crack-free microstructures are formed at temperatures of about 350 and 750 $^{circ}$ C. Maintaining the temperature of the sample at 350 $^{circ}$ C a uniform, crack-free layer with a high hardness is produced by laser alloying with an energy density of 0.76 W/mm $^{2}$ .

Language	:	English
Journal	:	JSME International Journal, Series A
Volume	:	48
Number	:	4
Pages	:	p.292 - 298
Publication Year/Month	:	2005/10
Meeting title	:	2nd JSME/ASME International Conference on Materials and Processing 2005 (M&P 2005)
Held date	:	2005/06
Location (city)	:	Seattle
Location (country)	:	U.S.A.
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DOI for research data	:
Keywords	:	レーザー熱衝撃; 表面改質; Al-Si粉末; 硬度; クラックフリー; 合金; 衝撃壊食
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Article of JAEA R&D Review	:
Cooperating Institute	:	茨城大学

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Registration No. : B20042237
JAEA Abstracts No. : 34000288
Paper Submission No. : 402

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