热处理对干摩擦Ti6Al4V合金摩擦性能的影响
Effect of Heat Treatments on Tribology Property of Ti6Al4V Alloy Under Dry Friction
黄俊媛 1张伟 1房卫萍 2陈静云3
作者信息
- 1. 北京航空航天大学机械工程及自动化学院,北京 100191
- 2. 广东省科学院中乌焊接研究所,广东广州 510650
- 3. 北京航天发射技术研究所,北京 100076
- 折叠
摘要
对电子粉床熔合(EPBF)制造的Ti6Al4V合金分别进行1 h的600 ℃去应力退火、800 ℃退火和920 ℃固溶热处理,然后对热处理前后的试样进行摩擦磨损实验,分析比较摩擦磨损性能和机理.结果表明,600 ℃去应力退火+1 h热处理后的试样耐磨性能最佳,磨损质量减少了44％.800 ℃退火+1h热处理后的试样减摩性能最好,摩擦系数减小了 14％.本研究提供了一种简单的热处理方式,提高了 EPBF制造Ti6Al4V合金的减摩耐磨性能.
Abstract
Ti6Al4V alloy manufactured by electron powder bed fusion(EPBF)was separately heat-treated by stress-relief annealing at 600 ℃,annealing at 800 ℃,and solid solution at 920 ℃ for 1 h.Then,the friction and wear tests were conducted on the samples before and after heat treatment to analyze the properties and mechanism of friction and wear behavior.Results show that the sample annealed at 600 ℃ for 1 h has the optimal wear resistance,and the wear mass loss reduces by 44％.The sample annealed at 800 ℃ for 1 h possesses the optimal anti-friction performance,and the coefficient of friction reduces by 14％.This research provides a simple heat treatment method to improve the friction and wear resistance of Ti6Al4V alloy manufactured by EPBF.
关键词
Ti6Al4V合金/电子粉床熔合/热处理/减摩性能/耐磨性能Key words
Ti6Al4V alloy/electron powder bed fusion/heat treatment/anti-friction performance/wear resistance引用本文复制引用
基金项目
National Natural Science Foundation of China(51975036)
Guangdong Province Key R&D Project(2018B090904004)
出版年
2024
NETL
NSTL
万方数据