| Stress corrosion behavior of pipeline steel(X52)welded joint |
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| 作者姓名： | 董俊明 戚继皋 薛锦 |
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| 作者单位： | Dr. DONG Junming，QI Jigao and Prof. XUE Jin，Welding Department，Xi'an Jiaotong University，Xi'an，710049，P. R. China |
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| 摘 要： | The resistance of pipeline steel joint welded by submerged arc welding to stress corrosion cracking (SCC) at its different regions in boiling mixed nitrate solution and in H_2S saturated solution at room temperature is examined by the constant-load tension method. The result shows that when tested in nitrate, the weld metal may be the weakest link of the joint if the welding material doesn't match well. The resistance to SCC of the joint in H_2S is very low, especially at the bond and coarse grain zone and is closely dependent on the metallurgical quality of base metal.
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Stress corrosion behavior of pipeline steel (X52) welded joint |
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| Dr. DONG Junming,QI Jigao and Prof. XUE Jin,Welding.Stress corrosion behavior of pipeline steel(X52)welded joint[J].China Welding,1997(1). |
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| Authors: | Dr DONG Junming QI Jigao and Prof XUE Jin Welding |
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| Affiliation: | Dr. DONG Junming,QI Jigao and Prof. XUE Jin,Welding Department,Xi'an Jiaotong University,Xi'an,710049,P. R. China |
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| Abstract: | The resistance of pipeline steel joint welded by submerged arc welding to stress corrosion cracking (SCC) at its different regions in boiling mixed nitrate solution and in H,S saturated solution at room temperature is examined by the constant-load tension method. The result shows that when tested in nitrate, the weld metal may be the weakest link of the joint if the welding material doesn't match well. The resistance to SCC of the joint in H2S is very low, especially at the bond and coarse grain zone and is closely dependent on the metallurgical quality of base metal. |
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| Keywords: | pipeline steel welded joint stress corrosion cracking |
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