粉末冶金技术2009，Vol.27Issue(5)：336-340,5.
V含量对(Ti,V)C35CrMo钢结硬质合金组织与力学性能的影响
Effect of vanadium content on the microstructure and mechanical properties of (Ti,V)C35CrMo steel bonded carbide
摘要
Abstract
(Ti, V)C35CrMo steel bonded carbide with different V/Ti atomic ratio(0,0. 2,0. 4,0. 8) were prepared by in situ sintering and the effect of vanadium content on the microstructure and mechanical property of the alloys were analyzed. In order to characterize the microstructure, fracture morphology and the wear behaviors, SEM have been utilized. The results show that the vanadium content plays an important role in affecting the morphology, size, volume fraction of (Ti, V) C reinforcements particles and the mechanical properties of the alloys. The size of reinforcement particles of the composites with 0. 2 V/Ti atomic ratio is the finest. With the increase of vanadium content, the reinforcement particle size increases gradually and the morphology of the particles changes to be round. The main fractographic appearances are (Ti,V)C cleavage, quasi-cleavage of matrix , dimples. The carbide peeling and the plastic deformation wear of matrix is the main wear mechanism. The bending strength and wear resistance of (Ti,V) C35CrMo steel bonded carbide with 0. 2 V/Ti atomic ratio reach the maximum.关键词
(Ti,V)C/原位烧结/钢结硬质合金/组织结构/力学性能Key words
(Ti,V)C/ in situ sintering/ steel bonded carbide/ microstructure/ mechanical property分类
矿业与冶金引用本文复制引用
龚伟,李华,朱勇..V含量对(Ti,V)C35CrMo钢结硬质合金组织与力学性能的影响[J].粉末冶金技术,2009,27(5):336-340,5.基金项目
西南科技大学青年基金资助项目(08zx3145) （08zx3145）
