摘要
采用超高压数控水射流设备对20Cr Mn Ti钢表面进行水喷丸处理,研究不同水压、靶距和喷嘴移动速度对其表面形貌、表面粗糙度、残余应力和硬度梯度的影响。结果显示,经高压水喷丸处理后的20Cr Mn Ti试样,其表面粗糙度值增加不明显,表面残余应力和硬度有很大提高,能有效改善材料的表面性能。
The effect of water pressure,target distance and nozzle speed of water jet shot peening on the surface roughness,residual stress and hardness gradient of 20 Cr Mn Ti steel was studied by using of a computer numerical controlled ultra-high pressure water jet cutting machine. The results show that,though the surface roughness value does not increase much,the surface residual stress and hardness of the20 Cr Mn Ti steel samples treated by water jet shot peening are increased markedly,which can effectively improve the surface properties.
作者
张在玉
梁益龙
袁顺金
朱勇
Zhang Zaiyu;Zhu Yong;Liang Yilong(College of Materials and Metallurgy,Guizhou University,Guiyang Guizhou 550025,China;School of Electronic and Inform Engineering,Anshun University,Anshun Guizhou 516000,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2018年第7期174-179,共6页
Heat Treatment of Metals
基金
贵州省科技计划(黔科合重大专项JZ字(2014)6012)
