贝氏体组织管线钢的氢致开裂行为
Hydrogen-induced Cracking Behavior of Bainite Pipeline Steel
摘 要
依据NACE TM2048-2005标准测试了热轧态X120管线钢的氢致开裂敏感性,利用金相显微镜、扫描电镜、透射电镜观察裂纹和组织形貌,结合氢压理论讨论了贝氏体组织管线钢的氢致开裂行为.结果表明,X120管线钢的氢致裂纹多从较大尺寸的夹杂物处萌生;氢致裂纹沿原奥氏体晶界扩展,部分裂纹穿过板条贝氏体组织,块状贝氏体铁素体组织有较好的抗氢致开裂性能.
沿晶扩展
板条贝氏体
块状贝氏体铁素体
hydrogen induced cracking(HIC)
intergranular propagation
lath bainite
block bainitic ferrite
Abstract
NACE TM2048-2005 standard was used to test the hydrogen induced cracking sensitivity of hot rolled X120 pipeline steel.The crack morphology and microstructure were observed with optical microscopy(OM),scanning electron microscopy(SEM) and transmission electron microscopy(TEM).The hydrogen induced cracking behavior of the bainite pipeline steel was discussed based on the hydrogen pressure theory.The results showed that the cracks mainly nucleated from the large size inclusions.The type of crack propagation was intergranular along the prior austenitic grain boundaries.The lath bainite microstructure had good hydrogen induced cracking resistance.
中图分类号 TG171
所属栏目 试验研究
基金项目 国家自然科学基金资助(No.50871077)
收稿日期 2010/1/2
修改稿日期 2010/3/25
网络出版日期
作者单位点击查看
联系人作者程吉浩(wustcjh@126.com)
备注程吉浩,硕士研究生.
引用该论文: CHENG Ji-hao,LIU Jing,HUANG Feng,SUN Yi-qiang,DENG Zhao-jun. Hydrogen-induced Cracking Behavior of Bainite Pipeline Steel[J]. Corrosion & Protection, 2010, 31(11): 833～836
被引情况:
【1】彭先华,刘静,黄峰,胡骞,张杰, "微观组织对管线钢氢致裂纹扩展方式及氢捕获效率的影响",腐蚀与防护 34, 882-885(2013)
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参考文献
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【2】Gyu Tae Park,Sung Ung Koh,Hwan Gyo Jung.Effect of microstructure on the hydrogen efficiency and hydrogen induced cracking of linepipe steel[J].Corrosion Science,2008,50:1866-1871.
【3】Al-Mansour M,Alfantazi A M,EI-boujdaini M.Sulfide stress cracking resistance of API-X100 high strength low alloy steel[J].Materials & Design,2009,30(10):4088-4094.
【4】Verdeja J I,Asensio J,Pero-Sanz J A.Texture,formability,lamellar tearing and HIC susceptibility of ferritic and low-carbon HSLA steels[J].Materials characterization,2003,50:81-86.
【5】Winston R Reive.尤利格腐蚀手册[M].杨武等译.北京:化学工业出版社,2005:843-844.
【6】周琦.管线钢在硫化氢水溶液中的台阶状氢致开裂分析[J].金属热处理,2004,29(3):52-57.
【7】周琦,季顺根,张建斌,等.管线钢中的硫化夹杂物与氢致开裂[J].材料工程,2002(9):38-39,46.
【8】Oriani R A.The physical and metallurgical aspects of hydrogen in metals[C]//in ICCF-4,Fourth International Conference on Cold Fusion.Lahaina,Maui:Electric Power Research Institute3412 Hillview,1993.
【9】Arafin M A,Szpunar J A.A new understanding of intergranular stress corrosion cracking resistance of pipeline steel through grain boundary character and crystallographic texture studies[J].Corrosion Science,2009,51(1):119-128.
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