| 热处理对原位烧结(Ti,V)C钢结硬质合金组织及耐磨性的影响 |
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| 引用本文： | 龚伟,李华.热处理对原位烧结(Ti,V)C钢结硬质合金组织及耐磨性的影响[J].机械工程材料,2009(11). |
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| 作者姓名： | 龚伟 李华 |
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| 作者单位： | 西南科技大学制造科学与工程学院;西南科技大学国防科技学院; |
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| 基金项目： | 西南科技大学青年基金资助项目(08zx3145); 西南科技大学博士基金资助项目(072X0111) |
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| 摘 要： | 利用粉末冶金技术,原位烧结合成了(Ti,V)C钢结硬质合金,并用扫描电镜、X射线衍射仪等研究了热处理对原位烧结(Ti,V)C钢结硬质合金组织和耐磨性的影响。结果表明:烧结态(Ti,V)C钢结硬质合金基体组织为细珠光体组织;1 000℃淬火后的组织转变为片状马氏体+(Ti,V)C硬质相颗粒+少量未溶碳化物;回火过程中合金具有较高的抗回火稳定性,在500℃左右回火时存在二次硬化现象;该合金在1 000℃淬火、经250,500℃回火后具有较好的耐磨性。
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| 关 键 词： | (Ti V)C 钢结硬质合金 热处理 耐磨性 |
Effect of Heat Treatment on Microstructure and Wear Resistance of(Ti,V)C Steel Bonded Carbide Produced by In-situ Sintering |
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| GONG Wei,LI Hua.Effect of Heat Treatment on Microstructure and Wear Resistance of(Ti,V)C Steel Bonded Carbide Produced by In-situ Sintering[J].Materials For Mechanical Engineering,2009(11). |
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| Authors: | GONG Wei LI Hua |
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| Affiliation: | GONG Wei1,LI Hua2(1.School of Manufacturing Science and Engineering,2.School of National Defence Science and Techology,Southwest University of Science and Technology,Mianyang 621010,China) |
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| Abstract: | (Ti,V)C steel bonded carbides were fabricated via powder metallurgy and in situ reactive synthesis technology.The microstructure and wear resistance of(Ti,V)C steel bonded carbide after quenching and tempering were studied by scanning electron microscopy and X-ray diffraction.The results show that the matrix microstructure of as sintered(Ti,V)C steel bonded carbide was fine pearlite structure.The quenched structure was made up of flake martensite,(Ti,V)C hard phase particles and undissolved carbides.(Ti,V)C... |
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| Keywords: | (Ti V)C steel bonded carbide heat treatment wear resistance |
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