激光强化处理9SiCr表面耐磨性试验研究  

Study on Wear Properties Of 9SiCr Steel Treated by Laser

作　　者：赵民[1] 丁津原[1] 阎玉涛[1] 张风和[1] 石维佳[2] 王宗英[2] 

机构地区：[1]东北大学,沈阳110015 [2]沈阳建筑工程学院,110015

出　　处：《润滑与密封》2002年第2期32-33,35,共3页Lubrication Engineering

基　　金：辽宁省教育厅高校科学研究资助项目(20202256)

摘　　要：采用地横流式激光器对9SiCr进行表面强化处理。采用扫描电镜观察硬化区金相组织和成分及表面磨损形貌,超显微硬度计测量激光强化区断面的显徽硬度,并在MPX-2000销盘式摩擦试验机上进行干摩擦试验。实验研究表明激光功率对表面硬度和硬化层深度有很大影响,经激光强化的表面其耐磨性得到很大的提高。This paper investigates transformation hardening in 9SiCr steel with CO_2 laser. The microstructures and phase compositions of laser transformation hardening zone were investigated with S-360 scanning electron microscope. Microhardness of laser hardening zone were measured with CHX - 1 microhardness tester, and dry wear experiments were done in pin-on-disc wear tester of MPX - 2000 model. Experimental results show that hardness and depth of surface are influenced by laser power. Wear resistance is improved by laser hardening.

关 键 词：激光处理 相变硬化 耐磨性 9SICR钢 

分 类 号：TG142.72[一般工业技术—材料科学与工程]