X52管材的疲劳裂纹扩展速率试验研究  

Test and Research on Fatigue Crack Growth Rate da/dN of X52 Petroleum Pipe Product

作　　者：蒋云[1] 吕英民[2] 

机构地区：[1]华北石油勘察设计研究院 [2]石油大学

出　　处：《油气储运》1999年第8期52-55,共4页Oil & Gas Storage and Transportation

摘　　要：开展了X52薄壁管材的da/dN疲劳裂纹扩展速率的试验研究,包括试样制备、试验原理、试验程序等,得到了X52管材母材和焊缝材料的da/dN,可用于分析含裂纹管道的工作寿命。指出在分析裂纹沿管子径向扩展的工作寿命时得出的试验结果需作修正。Through test and research on fatigue crack growth rate da/dN of X52 thin-wall pipe product, including sample making,test principle and test procedure,growth rate da/dN of X52 thin-wall pipe's mother material and weld material are obtained in this paper. The test results can be available in analyzing service life of pipelines containing crack. It is pointed out simultaneously in this paper that correction needs making on the above-mentioned test results in analyzing the service life of pipelines containing crack which propagates along the pipe radial.

关 键 词：疲劳 裂纹扩展 X52 管道 材料 油气管道 

分 类 号：TE973.1[石油与天然气工程—石油机械设备] TE973.6