12Cr1MoV和TP304H异种钢焊缝失效分析 Analysis on Flaws of Dissimilar Steel Weld Joints for 12Cr1MoV and TP304H.pdfVIP
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第32卷第2期 电 力 建设 、,01.32,No.2
·84· 2011年2月 ElectricPowerConstruction Feb,201l
中图分类号:TG44文献标志码:A文章编号:1000.7229(2011)02.0084—04
12Crl
MoV,禾il
TP304H异种钢焊缝失效分析
陈国星,胡金力,吴树辉,黄科峰,叶林,刘泽坤,尹嵩,史一岭
(苏州热工研究院,江苏省苏州市,215004)
onFlawsofDissimilarSteelWeld for12CrlMoVandTP304H
Analysis Joints
CHEN Jinli,WUShuhui,HUANGLin,LIUZekun,YIN
Guoxing,HU Kefeng,YE Song,SHIYiling
(SuzhouNuclearPowerInstitute,Suzhou Province,China)
215004,Jiangsu
ABSTRACT:Theflawsofdissimilarsteelweld for
joints 常见的珠光体耐热钢,珠光体钢的合金成分含量很
and
12CrIMoVTP304Hwere
investigatedbymacroscopic
低,对焊缝金属的成分有冲淡作用,使得焊缝的奥氏
examinationsof and
observation,and metallurgicalmicroscope体形成元素不足,结果焊缝里可能出现马氏体相组
mechanical at room results
properties temperature.The织,从而恶化焊接接头的质量,甚至引起裂纹。合理
that enrichedcarbon
demonstratedthecuneiformextensionand
的焊接工艺及焊丝选择是保证以上2异种钢焊接接
aroundthe linewasthereasonfor
layers melting cracking;and
头质量的关键。
the resultedintheextensionof to
creepdamage cracking
12CrlMoV.
1 样品概况
KEYWORDS:cuneifornlenrichedcarbon
extension;abnormal
某电厂托检异种钢焊接钢管l根,焊缝两侧材质
steelweld
layers;creepdamage;dissimilarjoint;12CrlMoV;
tonix4mm。
为12CrlMoV和TP304H,规格为西64
TP304H
该管运行20个月发生爆管,检杏发现裂口位置在焊
摘要:以电厂
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