航空轴承断油试验失效件微观损伤分析  

Analysis on Microscopic Damage of Failure Parts of Aircraft Bearings After Oil Interruption Test

作　　者：葛泉江[1] 尹龙承 张美宏 唐光泽[2] 马欣新[2] GE Quanjiang;YIN Longcheng;ZHANG Meihong;TANG Guangze;MA Xinxin(China Military Delegate Office of PLA Residing Harbin Bearing Group Corporation,Harbin 150036,China;School of Material Science ＆ Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]中国人民解放军驻哈尔滨轴承集团公司军事代表室,哈尔滨150036 [2]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《轴承》2018年第6期40-42,46,共4页Bearing

基　　金：国家"八六三"计划(2015AA034303);黑龙江省应用技术研究与开发计划(GX16A004)

摘　　要：采用扫描电镜、能谱分析、显微硬度计、X射线衍射仪、X射线应力分析仪对断油试验失效的航空轴承进行微观组织和结构分析。结果表明:断油试验后,由于断油时沟道表面温度升高,影响区深度可达3 200μm;失效轴承沟道次表层硬度明显下降,且沟道表面出现变形织构,表明沟道表面出现了塑性流动,其失效形式主要体现为粘着磨损。The microstructure of failure aircraft bearings after oil interruption test are analyzed by SEM,EDS,microhardness tester,XRD and X-ray stress analyzer. The results show that the hardness of raceway subsurface of failure bearings is decreased significantly after oil interruption test due to temperature rise of raceway surface of failure bearing,and the affected zone depth is about 3 200 μm. The deformation texture is found in failure bearing rings,indicating that the plastic flow is presented on raceway surface. The failure mode is characterized mainly by adhesive wear.

关 键 词：航空轴承 断油试验 损伤分析 M50钢 

分 类 号：TH133.331[机械工程—机械制造及自动化] TG115.22[金属学及工艺—物理冶金]