42CrMo激光淬火与火焰淬火摩擦学性能对比研究  

Comparison Study of Wear Properties Between Laser Quenching and Flame Quenching of 42CrMo Steel

作　　者：王欣欣 赵普志 魏晌 阿布莱·阿达克 易程宏 金杨福 Wang Xinxin;Zhao Puzhi;Wei Shang;Abulai·Adake;Yi Chenghong;Jin Yangfu(Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi,Xinjiang 830000,China;College of Materials Science and Engineering,Zhejiang University of Technology,Hangzhou,Zhejiang 310014,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830000 [2]浙江工业大学材料科学与工程学院,浙江杭州310014

出　　处：《应用激光》2022年第4期105-112,共8页Applied Laser

基　　金：国网新疆省电力有限公司科技项目(其他)(5230DK20004Q)。

摘　　要：针对电力金具在服役过程中,因为服役环境复杂而导致电力金具过早失效的问题。为进一步提高电力金具的使用寿命,采用激光淬火与火焰淬火的方式对试样表面进行强化,研究不同处理方式下表面硬化层的组织与硬度,利用摩擦磨损试验机对耐磨性能进行测试,并对表面磨损形貌及磨损机理进行分析。结果表明,经激光淬火与火焰淬火处理后,原始试样的耐磨性能得到了不同程度的提高,激光淬火后磨损失重量减少了80.60%,磨损程度较轻,表现为轻微磨损;火焰淬火后磨损量减少了66.24%,表现为磨粒磨损;未处理原始试样表现为粘着磨损。In the course of service, the power fittings often fail prematurely because of the complex service environment. In order to further improve the service life of the power fittings, in this paper, laser quenching and flame quenching were used to strengthen the surface of the samples. The microstructure and hardness of surface hardening layer under different treatment methods were studied. The wear resistance was tested by a friction and wear tester, and the surface wear morphology and wear mechanism were analyzed. Results show that after laser quenching and flame quenching, the wear resistance of the original samples is improved in different degrees. The weight loss after laser quenching is reduced by 80.60%, and the wear degree is slight. The weight loss after flame quenching is reduced by 66.24%, and the wear mechanism is abrasive wear. The wear mechanism of untreated samples is dominated by adhesion wear.

关 键 词：电力金具 激光淬火 磨损 火焰淬火 

分 类 号：TG115.21[金属学及工艺—物理冶金] TG115.51[金属学及工艺—金属学] TG115.58