影响X65管线钢抗氢致开裂性能的因素
Influential Factors of Resistance to HIC of X65 Pipeline Steels
摘 要
依据GB 8650-2006试验标准, 对3种不同成分、不同厚度的X65管线钢的抗氢致裂纹性能进行了研究, 通过光学显微镜、扫描电镜、电子探针等分析了影响管线钢抗氢致开裂性能的主要因素。结果表明: 成分偏析是导致材料抗氢致开裂性能下降的主要因素, 马氏体和奥氏体组成的硬组织带是导致形成台阶状裂纹的直接原因, 管线钢的抗氢致开裂性能与组织均匀程度密切相关。
氢致开裂
带状组织
pipeline steel
HIC
banding microstructure
Abstract
The experimental standard of GB 8650-2006 was adopted to study the resistance to hydrogen induced cracking(HIC) of X65 pipeline steels with different compsitions and thicknesses. The main influential factors of resistance to HIC were analyzed by optical microscopy, SEM and EPMA.The results show that the chemical composition segregation decreased the resistance to HIC. The hard structure band which was composed of martensite and austentite was immediate cause for step-like crack, and resistance to HIC of pipeline steel was closely related with the degree of microstructure uniformity.
中图分类号 TG142.1
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收稿日期 2010/10/28
修改稿日期 2011/7/15
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备注杨静(1979-), 女, 辽宁鞍山人, 工程师, 硕士。
引用该论文: YANG Jing,XU Feng,HUANG Guo-jian,WU Yu-min,LIU Feng-lian. Influential Factors of Resistance to HIC of X65 Pipeline Steels[J]. Materials for mechancial engineering, 2011, 35(11): 94～97
杨静,徐烽,黄国建,武欲民,刘凤莲. 影响X65管线钢抗氢致开裂性能的因素[J]. 机械工程材料, 2011, 35(11): 94～97
被引情况:
【1】吴辉,任呈强,刘丽,扈俊颖,曾德智, "不同因素对X52管线钢氢渗透行为的影响",机械工程材料 39, 23-26(2015)
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参考文献
【1】李晓刚,杜翠薇,董超芳,等.X70钢的腐蚀行为与试验研究[M]. 北京:科学出版社,2006.
【2】TAIR A, PARKINS R N.Factors influencing stress corrosion crack growth kinetics[J]. Corrosion,1993,49(7):130-139.
【3】殷光虹,施青,孙元宁.管线用钢氢致开裂(HIC)影响因素分析[J]. 钢管,2004,33(6):20-26.
【2】TAIR A, PARKINS R N.Factors influencing stress corrosion crack growth kinetics[J]. Corrosion,1993,49(7):130-139.
【3】殷光虹,施青,孙元宁.管线用钢氢致开裂(HIC)影响因素分析[J]. 钢管,2004,33(6):20-26.
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