管线钢氢致开裂与冲击韧性的相关性
Relativity between Hydrogen Induced Cracking and Charpy V Notch Test of Pipeline Steel
浏览(1764) 下载(2)
- DOI:
- 作者:
- 徐学利, 辛希贤, 仵亚婷, 王建民
Xu Xueli, Xin Xixian, Chu Yating, Wang Jianming
- 作者单位:
- 西安石油学院
Xi’an, Shanxi
- 关键词:
- 管线钢;氢致开裂;冲击韧性;相关性
pipeline steel;hydrogen;cracking impacting;tenacity relativity
- 摘要:
- 采用NACE饱和H2S溶液及示波冲击试验方法,探讨了管线钢氢致开裂(HIC)与冲击韧性(CVN)之间的相关性,并分析了其中的原因。结果表明,经过NACE饱和H2S溶液浸泡过的HIC试样在应变速率较大的冲击韧性试验条件下,其韧性变化无法表现,无论是弹性变形功 Ae、裂纹形成功Ai、裂纹扩展功Ap,还是总功At均无明显变化,因此,在实际生产中对于存在氢致开裂危险的结构不宜采用冲击韧性试验来评价其韧性大小。
Using methods of NACE H2S saturation solution and wave impacting test, the relativity between hydrogen craze and impacting tenacity of pipeline steel was discussed and analyzed. The results show that the HIC samples have no way to express the tenacity after dipping in the solution of NACE saturation H2S solution under the condition of impacting tenacity at larger stress rate. There is no obvious change no matter what recoverable strain work, cracking spreading work and the whole work. It is suggested that evaluationof the structure tenacity should use the impacting test in practical construction when cracking risk was existed.2002,1(1): 10-12 收稿日期:2001-11-28作者简介:尹刚乾,工程师1991年毕业于石油大学(华东)计算机及应用专业,一直从事水平定向穿越施工技术和管理工作,1998年参加中国石油天然气管道局对外合作项目经理培训班并赴加拿大培训,参加了苏丹管道水平定向穿越尼罗河和阿特巴拉河工程现任中国石油天然气管道第三工程公司穿越分公司副经理兼工程部部长、通讯地址:河南省中牟县,邮编:451450
