Influence of Welding Materials of Different Systems on Fatigue Properties of Maintenance Welds of Composite Steel Pipe

CHEN Kun; SONG Yiyang; LU Lili; LI Chaowei

doi:10.7512/j.issn.1001-2303.2022.12.06

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Influence of Welding Materials of Different Systems on Fatigue Properties of Maintenance Welds of Composite Steel Pipe
Vol. 52, Issue 12, Pages: 51-61(2022)
DOI： 10.7512/j.issn.1001-2303.2022.12.06

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陈坤，宋怡漾，芦丽莉，等.不同体系焊材对复合钢管道维修焊缝疲劳性能的影响［J］.电焊机，2022，52（12）：51-61.

CHEN Kun, SONG Yiyang, LU Lili, et al.Influence of Welding Materials of Different Systems on Fatigue Properties of Maintenance Welds of Composite Steel Pipe[J].Electric Welding Machine, 2022, 52(12): 51-61.
陈坤，宋怡漾，芦丽莉，等.不同体系焊材对复合钢管道维修焊缝疲劳性能的影响［J］.电焊机，2022，52（12）：51-61. DOI： 10.7512/j.issn.1001-2303.2022.12.06.

CHEN Kun, SONG Yiyang, LU Lili, et al.Influence of Welding Materials of Different Systems on Fatigue Properties of Maintenance Welds of Composite Steel Pipe[J].Electric Welding Machine, 2022, 52(12): 51-61. DOI： 10.7512/j.issn.1001-2303.2022.12.06.

摘要

为了验证不同体系焊材（美标和俄标）对典型核电站复合钢管道维修焊缝疲劳性能的影响，采用经过焊接工艺评定的工艺参数、不同体系的焊材（美标和俄标）制备典型的复合钢管道维修试样，分别在其维修焊缝的熔敷区和热影响区截取满足设计要求的漏斗形疲劳试样，并对其进行常温下的疲劳性能测试及数据分析。测试结果表明，不同体系焊材（美标和俄标）的熔敷区和热影响区的低周疲劳性能非常接近；同种焊材修复焊缝的熔敷区疲劳性能明显优于热影响区疲劳性能。

Abstract

In order to verify the influence of welding materials of different systems (American standard and Russian standard) on the fatigue properties of maintenance welds of composite steel pipe in typical nuclear power plant, typical maintenance samples of composite steel pipe are prepared by using process parameters evaluated by welding process and welding materials of different systems (American standard and Russian standard), the funnel-shaped fatigue samples meeting the design requirements are taken out from the deposited zone and heat affected zone of the maintenance weld, and the fatigue pro-perties are tested at room temperature and analyzed. The results show that the low cycle fatigue properties of deposited zone and heat affected zone of different welding materials (American standard and Russian standard) are very close; The fatigue properties of the deposited zone repaired by the same welding material is obviously better than that of the heat affected zone.

关键词

复合钢管道熔敷区热影响区疲劳性能

Keywords

composite steel pipedeposition zoneheat affected zonefatigue properties

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