强流脉冲电子束表面改性30SiMn2MoVA钢的耐磨性能  

Wear Resistance of 30SiMn2MoVA Steel Modified by High Current Pulsed Electron Beam

作　　者：陈光海[1] 周志明[1,2,3] 宋小放[1] 黄伟九[1,2,3] 汪红川 罗荣[4] 李晓雄 

机构地区：[1]重庆理工大学材料科学与工程学院,重庆400054 [2]重庆市精密成形集成制造产业协同创新中心,重庆400039 [3]重庆市模具技术重点实验室,重庆400054 [4]重庆市建设工业集团有限责任公司,重庆400054 [5]重庆国际复合材料有限公司,重庆400084

出　　处：《表面技术》2017年第3期107-112,共6页Surface Technology

基　　金：国家自然科学基金(51101177);重庆市科委攻关项目(cstc2014yykf B60004);重庆市巴南区科研基金(2015TJ08);重庆市模具技术重点实验室开放基金(2015TD19)~~

摘　　要：目的提高30SiMn2MoVA钢表面的耐磨性。方法通过强流脉冲电子束技术,对30SiMn2MoVA钢表面进行不同脉冲次数的轰击处理,分析表面改性前后试样的硬度及摩擦磨损性能。结果强流脉冲电子束处理30SiMn2MoVA钢表面晶粒细化,产生宏观残余应力使表面硬度提高。30次脉冲处理后,硬度达到最大值,相比于原始试样提高了39.6%。材料的磨损量随脉冲次数的增加而降低,表面耐磨性比原始试样提高了1倍左右,其中30次脉冲处理后,耐磨性提高最大。结论通过强流脉冲电子束技术,提高了30SiMn2MoVA钢表面的耐磨性。The work aims to improve the wear resistance of 30SiMn2MoVA steel surface. The surface of 30SiMn2MoVA steel was bombarded for different pulse times by means of high current pulsed electron beam technique. The wear and micro- hardness of the samples were analyzed before and after surface modification. The surface microhardness increased as macros- copic residual stress was generated after grain refinement. The microhardness reached the peak and increased by 39.6% com- pared with that of the original sample after receiving pulses treatment for 30 times. The abrasion loss decreased with the increase of pulse times, and the surface wear resistance doubled compared with that of the original samples after being treated by high current pulsed electron beam. The wear resistance reached the peak after receiving pulses treatment for 30 times. The wear resistance of 30SiMn2MoVA steel surface increases when the high current pulsed electron beam technique is applied.

关 键 词：强流脉冲电子束 30SiMn2MoVA钢 表面改性 耐磨性 显微硬度 

分 类 号：TG115.58[金属学及工艺—物理冶金]