油井空心抽油杆杆头断裂失效分析
王国正1,2，张朋举2，汪继刚2，刘晖2，韩军2，张仙文2，王壮壮2，李积2
Fracture failure analysis of a head of hollow sucker rods for oil well
Wang Guozheng1,2, Zhang Pengju2, Wang Jigang2, Liu Hui2, Han Jun2, Zhang Xianwen2, Wang Zhuangzhuang2, Li Ji2
金属热处理
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2015, (2): 200
-203
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DOI: 10.13251/j.issn.0254-6051.2015.02.045