[1]王高峰,王晓江,梅 滨,等.X70螺旋缝焊管焊缝横向裂纹分析[J].焊管,2013,36(3):39-44.[doi:1001-3938(2013)03-0039-06]
 WANG Gaofeng,WANG Xiaojiang,MEI Bin,et al.Analysis on Transverse Crack of X70 SAWH Pipe Weld[J].,2013,36(3):39-44.[doi:1001-3938(2013)03-0039-06]
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X70螺旋缝焊管焊缝横向裂纹分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第3期
页码:
39-44
栏目:
工艺与设备
出版日期:
2013-03-28

文章信息/Info

Title:
Analysis on Transverse Crack of X70 SAWH Pipe Weld
文章编号:
1001-3938(2013)03-0039-06
作者:
王高峰12王晓江3梅 滨3李保亮3张洪蔚3杨专钊12吴金辉12李安强12
(1.中国石油集团石油管工程技术研究院,西安 710065;
2.北京隆盛泰科石油管工程科技有限公司,北京 100101;
3.云南昆钢制管有限公司,云南 玉溪 653106)
Author(s):
WANG Gaofeng12WANG Xiaojiang3MEI Bin3LI Baoliang3ZHANG Hongwei3 YANG Zhuanzhao12WU Jinhui12LI Anqiang12
(1.CNPC Tubular Goods Research Institute,Xi’an 710065,China;
2.Beijing Longshine Oil Tubular Technology Co., Ltd., Beijing 100101, China;
3.Yunnan Kungang Pipe-making Co., Ltd., Yuxi 653106, Yunnan, China)
关键词:
关键词:螺旋焊管焊接裂纹淬硬组织残余应力夹杂物
Keywords:
Key words: SAW pipe welding crack quenched structure residual stress inclusion
分类号:
TE973
DOI:
1001-3938(2013)03-0039-06
文献标志码:
B
摘要:
动载荷条件下服役的管道,裂纹尖端会产生应力集中,且有很强的扩张延伸趋势,给管线的安全运行带来隐患。通过化学分析、力学性能试验、金相组织分析、断口电镜扫描分析以及能谱分析等对某钢管厂生产的螺旋焊管出现的内焊缝横向裂纹产生的原因进行了分析。分析结果表明,裂纹产生的原因是由于焊缝中存在氧化物夹杂裂纹源,且内焊缝组织存在淬硬组织,在较大的残余应力下产生开裂。最后,提出了预防类似裂纹产生的建议。
Abstract:
For pipeline serving under the condition of dynamic load, the crack tip will generate stress concentration , and it is with expansion and extension trend, which will form hidden danger for pipeline safe operation. In this article, the reason caused transverse crack in inside weld of SAWH pipe, which produced in certain pipe factory, was analyzed by chemical analysis, mechanical performance test, scanning electron microscope (SEM) and energy spectrum analysis(EDS). The results showed the oxide inclusion existed in weld and quenched structure existed in inside weld, which will cause cracking under major residual stress. In addition, it propounded the suggestions for preventing the similar cracks.

参考文献/References:

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备注/Memo

备注/Memo:
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作者简介:王高峰(1981—),男,工学硕士,工程师,毕业于西安石油大学材料加工工程专业,主要从事油气输送管性能研究工作。
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