INTRAGRANULAR VC AND M_(23)C_6 IN GH36 SUPERALLOY

Abstract

Abstract: The distinct images of intragranular VC were observed on TEM in superalloy GH36 underwent normal heat treatment and prolonged aging.The size of VC particles were meas- ured by means of Moire pattern,and the misfit between VC and austenite was also calculated. The M23C6 enveloped in VC shell was also observed in the prolonged-aged specimens.The coherent relation between intragranular M_(23)C_6 twins and austenite as well as its coherent in- terface were also studied.

Key words: VC, M_(23)C_6, Moire pattern, misfit

LI Yuqing Research Institute of Daye Steel Works,Huangshi,China Senior Engineer,Research Institute of Daye Steel Works,Huangshi,Hubei Province 435001,China. INTRAGRANULAR VC AND M_(23)C_6 IN GH36 SUPERALLOY[J]. Acta Metallurgica Sinica (English Letters), 1990, 3(6): 398-404.

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INTRAGRANULAR VC AND M_(23)C_6 IN GH36 SUPERALLOY

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