[1]刘立营,李太江,刘福广,等.TP304H+12Cr1MoV异种钢焊接接头的界面蠕变损伤行为[J].焊管,2013,36(10):31-35.[doi:1001-3938(2013)10-0031-05]
 LIU Liying,LI Taijiang,LIU Fuguang,et al.Creep Damage Behavior of TP304H+12Cr1MoVDissimilar Steel Welded Joint Interface[J].,2013,36(10):31-35.[doi:1001-3938(2013)10-0031-05]
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TP304H+12Cr1MoV异种钢焊接接头的界面蠕变损伤行为
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
36
期数:
2013年第10期
页码:
31-35
栏目:
应用与开发
出版日期:
2013-10-28

文章信息/Info

Title:
Creep Damage Behavior of TP304H+12Cr1MoV
Dissimilar Steel Welded Joint Interface
文章编号:
1001-3938(2013)10-0031-05
作者:
刘立营李太江刘福广王彩侠姚兵印李 巍
(西安热工研究院有限公司,西安 710032)
Author(s):
LIU LiyingLI TaijiangLIU FuguangWANG CaixiaYAO BinyinLI Wei
(Xi’an Thermal Power Research Institute,Xi’an 710032,China)
关键词:
焊接TP304H12Cr1MoV异种钢焊接热处理蠕变损伤
Keywords:
weldingTP304H12Cr1MoVdissimilar steel weldingheat treatmentcreep damage
分类号:
TG441.2
DOI:
1001-3938(2013)10-0031-05
文献标志码:
A
摘要:
通过高温持久性能试验和扫描电子显微镜分析,研究了焊态和热处理态TP304H+12Cr1MoV异种钢焊接接头的界面蠕变损伤及破坏特征。研究结果表明,焊后不进行热处理条件下,接头的高温持久性能优异;随着持久试验应力的降低,试样的断裂塑性下降,断裂部位由12Cr1MoV侧母材逐渐转移至热影响区、熔合线;接头经高温长期试验,12Cr1MoV侧熔合线附近会析出链状Ⅰ型碳化物,接头的低塑性开裂在该Ⅰ型碳化物处形核,进而通过蠕变孔洞的长大和连接的方式导致异种钢接头的早期脆性失效。
Abstract:
According to TP304H and 12Cr1MoV dissimilar steel welded joint,it studied the creep damage behavior and failure characteristic of TP304H+12Cr1MoV steel welded joint interface in as-welded condition and heat treatment condition,through high temperature endurance property and scanning electron microscope. The results indicated that the high tempera-ture endurance property is better after welding without heat treatment,with endurance test stress reducing,the fracture plasticity of specimen decreases,and the fracture location transfers from 12Cr1MoV base metal to HAZ and fusion line gradually. After long-term test under high temperature,the chain I carbide will precipitate adjacent to the side fusion line of 12Cr1MoV steel,the low plastic cracking of welded joint nucleates in I carbide,and then the growth of creep hole and connection way cause the early stage brittleness failure of dissimilar steel welded joint.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-05-20
作者简介:刘立营(1983—),男,山东德州人,工程师,现在西安热工研究院焊接研究所主要从事电站材料焊接技术研究工作。
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