摘要
采用一种新型表面机械强化技术-超声深滚技术(UDR)对钛合金试样进行了表面强化处理。研究了超声深滚处理对试件的残余应力、加工硬化和表面形貌及表面粗糙度的影响。结果表明:超声深滚处理引入了高幅值、大深度的残余压应力、加工硬化量适度并且显著降低了表面粗糙度。根据以上结果分析了该技术的优势和应用前景。
A new developed surface mechanical enhancement technique, Ultrasonic Deep Rolling （UDR）, was introduced. UDR was used to treat TC4 titanium alloy specimens. Residual stress and work hardening distribution, surface profile and surface roughness of the specimen were analyzed. Results show that a deep layer of high value compressive residual stress with moderate work hardening was developed. Surface roughness was reduced substantially. Advantages and potential applications of the UDR technique were discussed.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2008年第11期68-70,74,共4页
Journal of Materials Engineering
基金
留学回国人员科研启动基金-教外留司[2005]373号
关键词
超声深滚
残余应力
粗糙度
加工硬化
钛合金
ultrasonic deep rolling
residual stress
surface roughness
work hardening
titanium alloy
