Microstructure and performances of the WC-10Co4Cr coatings deposited by laser hybrid plasma spraying technology

LI Shuqing GONG Shuili LI Qilian

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Microstructure and performances of the WC-10Co4Cr coatings deposited by laser hybrid plasma spraying technology

更新时间：2021-03-05

- Microstructure and performances of the WC-10Co4Cr coatings deposited by laser hybrid plasma spraying technology
- NUCLEAR TECHNIQUES Vol. 33, Issue 12, (2010)
- 作者机构：
  
  北京航空制造工程研究所高能束流加工技术国防科技重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG174.4
- Published：01 December 2010
- 稿件说明：
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[1]李淑青,巩水利,李其连.等离子与激光复合热源喷涂WC-CoCr涂层组织性能研究[J].核技术,2010,33(12):913-917.

LI Shuqing GONG Shuili LI Qilian. Microstructure and performances of the WC-10Co4Cr coatings deposited by laser hybrid plasma spraying technology[J]. Nuclear techniques, 2010, 33(12): 913-917.
[1]李淑青,巩水利,李其连.等离子与激光复合热源喷涂WC-CoCr涂层组织性能研究[J].核技术,2010,33(12):913-917. DOI：

LI Shuqing GONG Shuili LI Qilian. Microstructure and performances of the WC-10Co4Cr coatings deposited by laser hybrid plasma spraying technology[J]. Nuclear techniques, 2010, 33(12): 913-917. DOI：

摘要

用等离子束与激光束复合热源喷涂工艺（Laser Hybrid Plasma Spraying

LHPS）在38CrMoAl基体上制备WC-10Co4Cr涂层

对涂层的显微硬度、结合强度、耐滑动摩擦磨损性能进行测试

用光学显微镜、XRD、SEM等方法对涂层的显微组织、相组成、磨损后形貌等测试分析

同时研究激光功率的变化对涂层组织性能影响。结果表明

复合热源喷涂WC-10Co4Cr涂层微观组织与性能随激光功率大小而变化

当激光功率在2100-2500 W时

涂层与基体浸润性好

组织相对致密

结合强度高

摩擦系数低且抗摩擦磨损性能好

其磨损机制为塑性切削与脆性剥落

以脆性剥落为主。

Abstract

In this paper

WC-10Co4Cr coatings were deposited by the laser hybrid plasma spraying(LHPS) technology on 38CrMoAl substrates.Microstructure and tribological properties of the coatings were studied using optical microscopy

X-ray diffraction

scanning electron microscope

SRV friction and wear testing.The results indicated that the microstructures and properties of the laser hybrid plasma spraying WC-10Co4Cr coatings changed with the laser power.When the laser power was 2100-2500 W

the coating had good adherence with the substrate

compact microstructures

high bonding strength

low friction coefficient and good anti-wear performance.The wear mechanism of the LHPS WC-10Co4Cr coating is mild scratching and plastic deformation.

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