M_2C CARBIDE IN M2 HIGH SPEED TOOL STEEL

Chin J Mater Res

1990, Vol. 4

Issue (3): 232-236 DOI:

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M_2C CARBIDE IN M2 HIGH SPEED TOOL STEEL

LUO Di;XING Guohua;LI Wencheng;LIAO Xin(Central Iron and Steel Research Institute;Ministry of Metallurgical Industry)

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LUO Di;XING Guohua;LI Wencheng;LIAO Xin(Central Iron and Steel Research Institute;Ministry of Metallurgical Industry). M_2C CARBIDE IN M2 HIGH SPEED TOOL STEEL. Chin J Mater Res, 1990, 4(3): 232-236.

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Abstract M_2C carbide and its decomposition products have been studied by SEM.Inthe cast state,the morphology of M_2C on the grain boundies is like″fan″,″lameller″or″stranger″.M_2C carbide is metastable at high temperature and will normally decompose toMC and M_6C

Key words: M2 high speed steel mixture carbide M_2C M_6C MC

Received: 25 June 1990

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