Preparation and Microstructure of WC Particles ReinforcedHigh Chrome Steel Matrix Surface Composites

Liu Xuan; Ding Kewei

doi:10.15980/j.tzzz.2012.04.011

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Preparation and Microstructure of WC Particles ReinforcedHigh Chrome Steel Matrix Surface Composites
Vol. 32, Issue 4, Pages: 367-369(2012)
Published： 2012 ，
DOI： 10.15980/j.tzzz.2012.04.011

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[1]刘旋,丁克伟.WC颗粒增强高铬钢基表层复合材料的制备和组织[J].特种铸造及有色合金,2012,32(04):367-369.

Liu Xuan, Ding Kewei. Preparation and Microstructure of WC Particles ReinforcedHigh Chrome Steel Matrix Surface Composites. [J]. Special Casting & Nonferrous Alloys 32(4):367-369(2012)
[1]刘旋,丁克伟.WC颗粒增强高铬钢基表层复合材料的制备和组织[J].特种铸造及有色合金,2012,32(04):367-369. DOI： 10.15980/j.tzzz.2012.04.011.

Liu Xuan, Ding Kewei. Preparation and Microstructure of WC Particles ReinforcedHigh Chrome Steel Matrix Surface Composites. [J]. Special Casting & Nonferrous Alloys 32(4):367-369(2012) DOI： 10.15980/j.tzzz.2012.04.011.

摘要

采用真空实型铸渗法（V-EPC）工艺

成功制备了以高铬钢为基材

WC颗粒为增强颗粒的表层复合材料。结果表明

用含有WC颗粒和高碳铬铁颗粒的预置块制备的不同WC颗粒体积分数的高铬钢基表层复合材料

WC颗粒均匀分布于复合层中

复合层在颗粒熔化、元素扩散互溶、金属液渗入的共同作用下形成由WC、W2C共晶组织

未溶解的高碳铬铁颗粒和各种析出的碳化物组成的组织。

Abstract

WC-particle reinforced high chromium steel matrix surface composites were prepared by V-EPC（vacuum-expandable pattern casting） infiltration.The results show that WC particles are uniformly distributed into the compound layer of high Cr steel composites with different volume of WC particles.Through the co-action of particle melting

element diffusion and infiltration of liquid steel

the microstructure of the composites prepared is composed of eutectic structure of WC and W2C

un-dissolved high Cr steel particle and precipitated carbide phase.