燃气轮机滚珠轴承失效分析  

Failure Analysis of Ball Bearing Used in Combustion Turbine

作　　者：魏国亮[1] 李铜桥[1] 张玉龙[1] 李岩[1] 

机构地区：[1]驻哈尔滨汽轮机厂有限责任公司代表室,哈尔滨150046

出　　处：《理化检验（物理分册）》2009年第4期228-229,252,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：某型船用主动力系统滚珠轴承在试车过程中发生滚珠断裂。采用化学成分分析、硬度测试和金相检验等方法对断裂的滚珠进行了分析。结果表明,该滚珠的材料硬度偏高,不符合订货技术要求;同时组织中存在超标的脆性夹杂物,这些均引起材料的缺口敏感性,最终导致滚珠在运行过程中发生脆断。A certain type of marine main power system ball bearings ball fracture was analyzed on the ball made chemical composition, hardness and microstructure analysis, analysis of the material properties ball was not in line with orders technical conditions require. Ball fracture analysis showed that the fracture was brittle fracture; high hardness of the ball and its inclusions resulted in its gap sensitivity, which was the main reason for ball brittle fracture.

关 键 词：燃气轮机 滚珠轴承 断裂 

分 类 号：TH133.331[机械工程—机械制造及自动化]