Q235钢表面氩弧熔覆B₄C-Ti复合涂层组织与性能的研究

Research on Microstructure and Property of B₄C-Ti Composite Coating by Argon Arc Cladding on Q235 Steel Surface

陈永生，王永东

黑龙江科技大学材料科学与工程学院

摘　要

以B4C粉、Ti粉和Fe粉末为原料,采用氩弧熔覆技术在Q235钢基体表面制备出增强复合涂层。利用扫描电镜,X射线衍射仪,显微硬度仪和摩擦磨损试验机等对复合涂层的组织,相组成,硬度和耐磨性能进行了研究。结果表明:熔覆层相由α-Fe、颗粒状Ti C和Ti B构成,Ti C颗粒弥散分布在基体上,涂层显微硬度高达700HV0.2,耐磨性能比Q235钢基体提高约6倍。

关键词

Q235钢；氩弧熔覆；显微组织；耐磨性

基金项目

黑龙江省教育厅骨干教师资助项目(1253G051)

分类号

TG174.4

栏　目

试验研究

出　处

《冶金与材料》2015年第3期，第 26-28+33 页（共 4 页）

出版日期

2015-06-15

知网数据

下载 119 次，被引 2 次（截至 2026-09-29）

Abstract

The reinforced composite coating was prepared on the surface of Q235 steel by means of argon arc cladding technique with the pre- alloyed powder of B4 C,Ti and Fe. The microstructure,phase? composition,hardness and wear resistance of the composite coating have been researched using SEM,X- ray diffraction,microhardness tester and wear and abrasion test machine. The results show that the coating is composed mainly of α- Fe and Ti C particles and Ti B,the Ti C particles are dispersed in the substrate,the microhardness of the coating can reach 700HV0. 2,and the wear resistance is about 6 times higher than that of Q235 steel substrate.

Keywords

Q235 steel; Argon arc cladding; Microstructure; Wear resistance

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