高锰钢锤头失效分析与优化研究

Failure Analysis and Optimization Research on High Manganese Steel Hammer Head

结合对Mn18锤头断裂界面特征、形貌以及金相组织等的分析,确定了沿晶界开裂、Ti含量过多以及生产工艺不合理等是造成失效的原因。通过减少Ti含量,增加Mo元素,改变生产工艺等措施,使Mn18锤头的组织特征以及析出物总量和形态得到优化,锤头的服役周期及稳定性均有效提升。

Based on the analysis of the fracture interface characteristics, morphology, and metallographic structure of Mn18 hammer heads, it has been determined that cracking along grain boundaries, excessive Ti content, and unreasonable production processes are the reasons for the failure. By re-ducing Ti content, increasing Mo element, changing production process, and other measures, the microstructure characteristics, total amount and morphology of precipitates of Mn18 hammer head are optimized, and the service cycle and stability of the hammer head are effectively improved.