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INTRAGRANULAR VC AND M_(23)C_6 IN GH36 SUPERALLOY

LI Yuqing Research Institute of Daye Steel Works , Huangshi , China Senior Engineer , Research Institute of Daye Steel Works , Huangshi , Hubei Province 435001 , China

金属学报(英文版)

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.

关键词: VC , null , null , null

METHOD FOR POLYFAMILY PLANE TRACE ANALYSIS AND ITS APPLICATION

LI Yuqing Research Institute of Daye Steel Works , Huangshi , China Senior Engineer , Research Institute of Daye Steel Works , Huangshi 435001 , China

金属学报(英文版)

The formula for calculating included angle between polufamily plane traces of lattice systems in thin foit under hath zero tilt and non-zero tilt states was deduced and verified by certain prat tical examples.The method may be available to index the plane traces of slip.twin and other defects.especially to determine such planar defects as twin and other defects esperially

关键词: polyfamily plane , null , null , null

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