WANG Yu
,
SONG Weixi
,
HAN Qiyong University of Science and Technology Beijing
,
Beijing
,
China The Institute of Precise and Special New Materials
,
University of Science and Technology Beijing
,
Beijing 100083
,
China
金属学报(英文版)
Size distribution and precipitation of VC particles in ferritic nodular cast iron have been examined by techniques of ultrasonic screening,small angle X-ray scattering and chemical dissolution.The VC particles are sized over a wide range.The superfine ones, dispersed in the ferritic matrix,are the majority.A saturated dispersion with ultrafine VC particles may be approached as the V content increasing in the iron.Thi5 seems to play an important role in the precipitation strengthening for ferritic nodular cast iron.
关键词:
nodular cast iron
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