Xian Yong, Wang Yisan, Ding Yichao, Wang Jing. Research on In- situ Synthesis of （V,Nb） C Reinforced Iron Matrix Composite and Its Microstructure[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(6): 22-25,30.
Citation:
Xian Yong, Wang Yisan, Ding Yichao, Wang Jing. Research on In- situ Synthesis of （V,Nb） C Reinforced Iron Matrix Composite and Its Microstructure[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(6): 22-25,30.
Xian Yong, Wang Yisan, Ding Yichao, Wang Jing. Research on In- situ Synthesis of （V,Nb） C Reinforced Iron Matrix Composite and Its Microstructure[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(6): 22-25,30.
Citation:
Xian Yong, Wang Yisan, Ding Yichao, Wang Jing. Research on In- situ Synthesis of （V,Nb） C Reinforced Iron Matrix Composite and Its Microstructure[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(6): 22-25,30.
1. Pangang Group Research Institute Co., Ltd., State Key Laboratory for Comprehensive Utilization of Vanadium and Titanium Resources, Panzhihua 617000, Sichuan, China;
2. School of Manufacturing Sci. and Eng., Sichuan University, Chengdu 610065, Sichuan, China;
3. Chengdu Electromechanical College, Chengdu 610031, Sichuan, China
Received Date: 2012-05-04 Available Online:
2023-12-04
In-situ synthesized（V,Nb）C reinforced iron matrix composites with sintering density of 7.07 g·cm-3 at 1 360 ℃were prepared by powder metallurgy process.The microstructure of the composites were investigated by X-ray diffraction（XRD）and scanning electron microscope（SEM）respectively.The results show that NbC absorbs on the surface of VC particles during high temperature precipitation process and then（V,Nb） C solid solution that could inhibit the growth of hard-phase particles is formed by inward penetration of NbC.When the molar ratio of Nb/V was 0.4,Nb could effectively inhibit solid solution of alloy elements in carbides,bringing a large number of V,Mo and Cr into austenite,and thus the iron matrix comprising of bainite and residual austenite was obtained with furnace cooling.
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