摘要
以Cr-Ni-Si合金粉末为原料、利用激光熔敷技术在钛合金表面上制得了Cr13Ni5Si2基金属硅化物冶金涂层,在干滑动磨损条件下测试了该涂层的耐磨性能。结果表明,激光熔敷Cr13Ni5Si2基金属硅化物涂层组织主要由Cr13Ni5Si2初生树枝晶及少量Cr13Ni5Si2/Cr3Ni5Si2共晶组成,涂层在干滑动磨损条件下具有优异的耐磨性能。
A wear resistant Cr13Ni5Si2-based metal silicide coating was fabricated on a substrate of titanium alloy BT20 by laser cladding process of Cr-Ni-Si alloy powders. Wear resistance of the coating was evaluated under block-on-wheel dry sliding wear test conditions at room-temperature. Microstructure of the coating is consisted of Cr13Ni5Si2 primary dendrites and small amount of Cr13Ni5Si2/Cr3Ni5Si2 eutectics. The laser-clad Cr13Ni5Si2-based coating exhibited an excellent wear resistance under dry sliding wear test conditions.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2005年第6期936-939,共4页
Rare Metal Materials and Engineering
基金
国家高技术研究发展计划(2002AA331030
2002AA305203)资助武器装备预研究基金(51418050201HK0119)航空基础科学基金(02H51011)国防基础科研项目北京市自然科学基金(2022012)教育部跨世纪优秀人才培养计划基金项目
关键词
钛合金
过渡金属硅化物
激光熔敷
涂层
耐磨性
titanium alloy
transition metal silicide
laser cladding
coating
wear resistance
