载荷与温度对20CrMnTi合金钢磨蚀行为的影响  

Effect of load and temperature on the abrasion behavior of the 20CrMnTi alloy steel

作　　者：伍晓龙[1,2] 杜垚森 高鹏举[1,2,3] 汤小仁 王晓赛[1,2,3] WU Xiaolong;DU Yaosen;GAO Pengju;TANG Xiaoren;WANG Xiaosai(Institute of Exploration Techniques,CAGS,Langfang 065000,China;Innovation Base for Automatic and Intelligent Drilling Equipment,Geological Society of China,Langfang 065000,China;School of Engineering and Technology,China University of Geosciences,Beijing 100083,China)

机构地区：[1]中国地质科学院勘探技术研究所,廊坊065000 [2]中国地质学会自动化智能化钻探装备创新基地,廊坊065000 [3]中国地质大学(北京)工程技术学院,北京100083

出　　处：《机械传动》2025年第1期114-120,共7页Journal of Mechanical Transmission

基　　金：战略矿产地质调查项目(DD20242232);国家重点研发计划项目(2018YFC0603400)。

摘　　要：【目的】钻机动力头中齿轮材料常选用20CrMnTi合金钢,该材料硬度和耐磨性优异,被广泛应用于制备各种传动装置中的关键零部件,如齿轮、轴承和传动轴等。但由于钻机动力头在工作过程中常常需承受大的转矩,且施工条件恶劣、服役工况复杂苛刻,需遭受各种复杂的磨蚀行为,久之必将影响其服役性能。掌握20CrMnTi合金钢在实际服役过程中表面的磨蚀损伤失效机制就显得十分重要。【方法】基于磨损试验装置和电化学腐蚀工作站,研究了20CrMnTi合金钢在不同温度(25℃/100℃)和载荷(35 N/55 N/75 N)工况下磨蚀界面的损伤行为和腐蚀动力学响应。【结果】试验结果表明,磨损温度及法向载荷的增大均会加剧材料的磨损,进而降低其表面的电化学腐蚀抗性;此外,20CrMnTi合金钢的磨蚀损伤机制主要表现为磨粒磨损和疲劳剥落。[Objective]The drill power head of the drilling rig often needs to withstand large torque in the working process,and the construction conditions are harsh.The gear material of the power head is often selected 20CrMnTi alloy steel,because the material has excellent hardness and wear resistance.It is also widely used in the preparation of key parts in various transmission devices,such as gears,bearings and drive shafts.However,concerning the power head of the drilling rig often needs to withstand large torque during the working process,the construction conditions are harsh,and the service conditions are complex and harsh,which usually result in a variety of complex abrasive behaviors during use.These will inevitably affect its service performance over time.It is very important to master the failure mechanism of surface abrasion damage of 20CrMnTi alloy steel during actual service.[Methods]Based on the wear test device and electrochemical corrosion workstation,the damage behavior and corrosion kinetics of the 20CrMnTi alloy steel at different temperatures(25℃/100℃)and loads(35 N/55 N/75 N)were studied.[Results]The test results show that the increase of wear temperature and normal load will aggravate the wear of the material,and then reduce the electrochemical corrosion resistance of the surface.In addition,the abrasion damage mechanism of the 20CrMnTi alloy steel is mainly manifested as abrasive wear and fatigue spalling.

关 键 词：20CrMnTi合金钢 齿轮 温度 载荷 电化学腐蚀 

分 类 号：TG14[一般工业技术—材料科学与工程]