Y2O3对原位自生TiC-TiB2增强镍基复合涂层组织与性能的影响
Effect of Y2O3 on microstructure and properties of in-situ TiC-TiB2 reinforced nickel based composite coating
王永东 1王金宇 1常萌阳1
作者信息
- 1. 黑龙江科技大学 材料科学与工程学院,哈尔滨 150022
- 折叠
摘要
为研究Y2O3 的添加对氩弧熔覆原位自生TiC-TiB2 增强镍基复合涂层组织与性能的影响,选用Q235 钢为基体,利用氩弧熔覆的方法,制备原位自生TiC-TiB2 陶瓷颗粒的复合涂层,运用XRD、金相显微镜、SEM、热力学分析等方法分析涂层的微观组织形貌,测试熔覆层的硬度与耐磨性能.实验结果表明,加入一定量的Y2O3 可促进形核率,其中添加0.6%Y2O3 的涂层组织最为细小,TiC颗粒较多且呈弥散分布,涂层组织更为细小均匀,涂层的硬度及涂层的耐磨性大大提高.
Abstract
This paper aims to investigate the effect of adding Y2O3 element on the microstructure and properties of in-situ TiC-TiB2 reinforced nickel based composite coatings by argon arc cladding.The study consists of using Q235 steel as the substrate,preparing a composite coating with in-situ TiC-TiB2 ceramic particles by argon arc cladding method,observing and analyzing the microstructure of the coating by using XRD,metallographic microscope,SEM,and thermodynamic analysis;and testing the hardness and wear resistance of the cladding layer.The experimental results show that adding a certain amount of Y2O3 can promote nucleation rate,among which Y2O3 coating with 0.6%content features the smallest microstruc-ture,along with more and dispersed TiC particles,more refined and uniform coating structure,and the hardness and wear resistance of the coating are greatly improved.
关键词
氩弧熔覆/涂层/原位自生/Y2O3/TiC-TiB2Key words
argon arc cladding/coating/in situ autogenesis/Y2O3/TiC-TiB2引用本文复制引用
基金项目
黑龙江省省属高等学校基本科研业务费项目(2020-KYYWF-0699)
出版年
2024
国家科技期刊平台
NSTL
万方数据