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Einfluss der Wärmebehandlung auf das Gefüge und die Eigenschaften einer verschleißfesten Vanadiumlegierung
Author(s) -
Hui L.,
HanGuang F.,
Jiang J.,
Jun W.
Publication year - 2018
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201700252
Subject(s) - materials science , microstructure , eutectic system , austenite , tempering , metallurgy , alloy , vanadium , martensite , quenching (fluorescence) , carbide , rockwell scale , optical microscope , scanning electron microscope , vickers hardness test , bainite , composite material , optics , physics , fluorescence
In order to improve the properties of high vanadium wear‐resistant alloy and obtain the optimal process parameters, the effect of heat treatment on the microstructure and properties of high vanadium wear‐resistant alloy was studied by means of optical microscope, the scanning electron microscope, X‐ray diffraction, energy dispersive spectrometer, Rockwell and Vickers hardness tester. The results show that the microstructure of as‐cast high vanadium wear‐resistant alloy was composed of matrix and eutectic structure. The matrix was mainly composed of martensite and retained austenite, and the eutectics mainly included M 7 C 3 and VC type carbide. After quenching, the matrix structure of the alloy remains martensite and retained austenite. M 23 C 6 type carbide was precipitated while quenching at 1100 °C. The type of eutectic structure has no obvious change after tempering. Tempering has great influence on the amount of retained austenite in the matrix. The hardness of the alloy is the highest (about 69.1 HRC) when the quenching temperature and tempering temperature are 1000 °C and 550 °C respectively.