5CrW2Si钢冲击活塞断裂分析  

THE FAILURE ANALYSIS OF 5CrW2Si STEEL STRIKE PISTON

作　　者：张跃[1] 王明章[1] 陆致龙[1] 高克玮[1] 褚武扬[1] 

机构地区：[1]北京科技大学材料物理系

出　　处：《腐蚀科学与防护技术》1994年第2期195-198,共4页Corrosion Science and Protection Technology

摘　　要：本文通过应力腐蚀和腐蚀疲劳实验，应用光学显微镜和扫描电镜证实工作时水进入活塞内壁，形成蚀坑，从而在交变载荷作用下产生氢致开裂，并由此提出了防止活塞氢致开裂的措施．The failure of the strike piston of hydraulic rock drill was investigated by optical microscopy,SEM,stress corrosion and corrosion fatigue tests.It has been found that,the faiure ofthe piston is due to the According to the experiment results,measures to prevent the piston failure have been suggested

关 键 词：氢致开裂 活塞 凿岩机 应力腐蚀 

分 类 号：TH134[机械工程—机械制造及自动化]