Impact Property of Heat-affected Zone in Welded Joint of X70 Pipeline Steel
摘 要
对X70管线钢焊接接头热影响区进行了冲击试验,对结果进行了分析。结果表明:X70管线钢焊接接头热影响区冲击试样的冲击功与断口剪切面积基本成线性比例关系,冲击功越高,剪切面积越大。焊接接头热影响区冲击试样的断口由韧性区、脆性区和韧脆混合区组成。脆性区为解理断裂,韧脆混合区为准解理断裂。
Abstract
Impact test results of heat-affected zone in welded joint of X70 pipeline steel were studied. The results indicated that impact absorbed energy of heat-affected zone in welded joint of X70 pipeline steel were proportional with shearing area on the whole. Impact absorbed energy was higher,shearing area was bigger. Impact fracture surface of heat-affected zone in welded joint included tough zone ,brittle zone and tough-brittle zone. Brittle zone was cleavage fracture,tough-brittle zone was quasi-cleavage fracture.
中图分类号 TG113.2
所属栏目 试验与研究
基金项目
收稿日期 2008/10/8
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备注蔺卫平(1975-),女,工程师,硕士。
引用该论文: LIN Wei-ping,LI Ai-ping,WANG Xiao-yan,LI Na,WANG Ya-long,REN Ji-cheng. Impact Property of Heat-affected Zone in Welded Joint of X70 Pipeline Steel[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2009, 45(5): 273~276
蔺卫平,李爱萍,王晓燕,李 娜,王亚龙,任继承. X70管线钢焊接接头热影响区的冲击性能[J]. 理化检验-物理分册, 2009, 45(5): 273~276
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参考文献
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