[1]余钊辉,党 恩,朱安达,等.海洋隔水管对接环焊缝接头高周疲劳性能研究[J].焊管,2013,36(10):11-15.[doi:1001-3938(2013)10-0011-05]
 YU Zhaohui,DANG En,ZHU Anda,et al.Research on High Cycle Fatigue Property for Butt Circumferential Weld of Marine Riser[J].,2013,36(10):11-15.[doi:1001-3938(2013)10-0011-05]
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海洋隔水管对接环焊缝接头高周疲劳性能研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第10期
页码:
11-15
栏目:
试验与研究
出版日期:
2013-10-28

文章信息/Info

Title:
Research on High Cycle Fatigue Property for Butt Circumferential Weld of Marine Riser
文章编号:
1001-3938(2013)10-0011-05
作者:
余钊辉1党 恩2朱安达2杨 龙1张建勋1
(1.西安交通大学 金属材料强度国家重点实验室, 西安 710049;
2.宝鸡石油机械有限责任公司,陕西 宝鸡 721002)
Author(s):
YU Zhaohui1DANG En2ZHU Anda2YANG Long1ZHANG Jianxun1
(1.State key laboratory for mechanical behavior of materials,Xi’an Jiaotong University,Xi’an 710049,China;
2.Baoji Oilfield Machinery Co.,Ltd.,Baoji 721002,Shaanxi,China)
关键词:
焊接异质接头隔水管疲劳极限
Keywords:
weldingheterogeneous jointriserfatigue limit
分类号:
TG445
DOI:
1001-3938(2013)10-0011-05
文献标志码:
A
摘要:
采用四点弯曲疲劳试验法,测试了海洋隔水管道X80/X80J对接环焊缝高周疲劳性能。综合分析了应力集中、显微组织和硬度对裂纹萌生位置的影响。结果表明,有余高焊接接头疲劳裂纹在焊趾处萌生并向热影响区扩展,去除余高的焊接接头疲劳裂纹从焊缝处萌生并沿焊缝扩展;焊缝余高引起的应力集中是降低焊接接头疲劳性能的主要因素,有余高焊接接头的疲劳极限为216 MPa,去除余高的焊接接头疲劳极限为400 MPa。
Abstract:
The four-point bend fatigue test method was used to measure the high cycle fatigue property of marine riser X80/X80J butt circumferential weld. The influence on crack initiation location of stress concentration,microstructure and hardness was analyzed comprehensively. The results showed that the fatigue crack of welded joint with weld reinforcement initiates from toes, and then extends to the heat affected zone from the weld reinforcement,while the crack initiates from weld and propagates along the weld without reinforcement. The stress concentration caused by the weld reinforcement is the main factor to reduce the welded joint fatigue performance. The fatigue limit of welded joint is 216 MPa for with reinforcement and 400 MPa for without the weld reinforcement.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-06-14
作者简介:余钊辉(1983—),男,博士,主要从事金属材料断裂与疲劳研究工作。            
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