摘要
采用断口分析、显微组织检验、低倍组织检验和化学成份分析等方法,对45钢汽车稳定杆进行了失效分析。断裂失效的主要原因是由于材料的成分偏析、热处理工艺不当和表面缺陷造成的。建议改进热处理工艺,保证组织的均匀性;选用成分均匀的钢材。
The failure analysis of the automobile scopic analysis, microstructure test, macrostructure stabilizing rod which is made of 45 steel was made through fracture micro- test and chemical compositions analysis. The main causes of the fracture failure were composition segregation, improper heat-treating process and surface defect. Improving the heat-treating process to ensure the uniformity of microstructure and selecting the steel with uniform ingredients were suggested.
出处
《精密成形工程》
2010年第4期72-75,共4页
Journal of Netshape Forming Engineering
关键词
45钢
稳定杆
失效分析
45 steel
stabilizing rod
failure analysis
