Cracking Analysis of the X95 Drill Pipe
摘 要
分析了φ 101.6 mm×8.38 mm IU X95钢级钻杆管体在使用中出现纵向开裂的性质与原因。结果表明: 钻杆管体的开裂属于脆性开裂; 在生产过程中钻杆的表面微裂纹处遭受铅、锡等低熔点金属的污染, 使力学性能下降、裂纹容易扩展; 使用时, 在温度与拉应力作用下裂纹扩展到一定程度后导致钻杆沿纵向开裂失效。
Abstract
The characteristics and causes of longitudinal cracking of IU X95 drill pipe with size of φ101.6 mm×8.38 mm during using were analyzed. The results show that the drill pipe cracking was brittle, and the surface micro-crack suffered from contaminating of metal with low melting point, such as Pb and Sn, to result in poor property and crack extension easily. The dill pipe cracked when cracking extended to some degree under the action of temperature and tensile stress.
中图分类号 TG921
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收稿日期 2010/10/31
修改稿日期 2011/6/9
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备注李磊(1983-), 男, 陕西宝鸡人, 工程师, 硕士。
引用该论文: LI Lei,LIU Wen-hong,SONG Sheng-yin,WANG Xing-hu. Cracking Analysis of the X95 Drill Pipe[J]. Materials for mechancial engineering, 2011, 35(11): 109~111
李磊,刘文红,宋生印,王新虎. X95钢级钻杆开裂原因分析[J]. 机械工程材料, 2011, 35(11): 109~111
被引情况:
【1】黄本生,卢东华,姜涛,张俊,宁扬忠, "G105钻杆在不同氢离子浓度溶液中的腐蚀行为",机械工程材料 38, 81-84(2014)
【2】龚丹梅,余世杰,刘贤文,魏立明,马金山,袁鹏斌, "定向钻穿越S135钢级钻杆的断裂分析",机械工程材料 38, 104-108(2014)
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参考文献
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【2】NICHOLAS M G, OLD C F.Liquid metal embrittlement[J]. J Mater Sci,1979,14:1-18.
【3】SOLLOF N S, JOHNSTON T L.Crack propagation in aliquid metal environment[J]. Acta Metal,1963,11:251-256.
【4】KELLEY M J,STOLOFF N S.Analysis of liquid metal embrittlement from a bond energy viewpoint[J]. Met Trans A,1975,6:159-166.
【5】LYNCH S P.Overview of evidence for an adsorption-induced localized slip process[J]. Acta Metall,1988,36:2639-2661.
【6】张栋,钟培道,陶春虎,等.失效分析[M].北京: 国防工业出版社,2004.
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