TY - GEN
T1 - Effect of solution nitriding on hardness and microstructure of martensitic stainless steel
AU - Huynh, K. L.Ngo
AU - Takebe, H.
AU - Nakashima, K.
AU - Tsuchiyama, T.
AU - Takaki, S.
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - By applying solution nitriding to conventional martensitic stainless steel of SUS410. we could produce high nitrogen martensitic stainless steel successfully. Firstly, the hardness and microstrucnire of the martensitic stainless steel obtained was investigated for the as-solution-nitrided specimen without tempering. After tliat, the change in hardness with tempering was investigated as well as microstructure. The results obtained were summarized as follows: (1) SUS410 added nitrogen by solution nitriding at M73K.-0.lMPa contained about 0.3mass% nitrogen. (2) The increase in the hardness of SUS410 solution-nitrided rose about l.OGPa. However, hardening effect by nitrogen was significantly smaller than that by carbon. (3) There was no effect of solution nitriding on microstructure of SUS410. (4) Because of the precipitation of very fine CrN nitrides, the maximum hardness obtained in the 773K tempered SUS410-0.3N reached 6.9GPa which was the same harness as that of the as-quenched SUS420J2.
AB - By applying solution nitriding to conventional martensitic stainless steel of SUS410. we could produce high nitrogen martensitic stainless steel successfully. Firstly, the hardness and microstrucnire of the martensitic stainless steel obtained was investigated for the as-solution-nitrided specimen without tempering. After tliat, the change in hardness with tempering was investigated as well as microstructure. The results obtained were summarized as follows: (1) SUS410 added nitrogen by solution nitriding at M73K.-0.lMPa contained about 0.3mass% nitrogen. (2) The increase in the hardness of SUS410 solution-nitrided rose about l.OGPa. However, hardening effect by nitrogen was significantly smaller than that by carbon. (3) There was no effect of solution nitriding on microstructure of SUS410. (4) Because of the precipitation of very fine CrN nitrides, the maximum hardness obtained in the 773K tempered SUS410-0.3N reached 6.9GPa which was the same harness as that of the as-quenched SUS420J2.
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M3 - Conference contribution
AN - SCOPUS:84928238783
T3 - Proceedings of the 17th IFHTSE Congress
SP - 549
EP - 552
BT - Proceedings of the 17th IFHTSE Congress
PB - The Japan Society for Heat Treatment (JSHT)
T2 - 17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008
Y2 - 26 October 2008 through 28 October 2008
ER -