...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering failure analysis >Analysis of service stress corrosion cracking in a natural gas transmission pipeline, active or dormant?
【24h】

Analysis of service stress corrosion cracking in a natural gas transmission pipeline, active or dormant?

机译：分析天然气输送管道（活动或休眠）中的使用应力腐蚀开裂？

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Stress corrosion cracks (SCC) had been found in a natural gas transmission pipeline during a dig-up and inspection program. The question was raised as to whether the SCC was active or dormant. This paper describes the resultant investigation to determine if a particular service crack was actively growing. The strategy adopted was to assess the appearance of the fracture surface of the service crack and to compare with expectations from laboratory specimens with active SCC. The conclusions from this study are as follows. To judge whether a crack in the service pipe is active or dormant, it is reasonable to compare the very crack tip of the service crack and a fresh crack in a laboratory sample. If the crack tip of the active laboratory sample is similar to that of the service pipe, it means the crack in the service pipe is likely to be active. From the comparison of the crack tip between the service pipe and the laboratory samples, it appears likely that the cracks in the samples extracted from service were most likely to have been active intergranular stress corrosion cracks.
机译：在挖掘和检查程序期间，在天然气传输管道中发现了应力腐蚀裂纹（SCC）。有人提出了SCC是活跃的还是休眠的问题。本文介绍了结果调查，以确定特定的服务漏洞是否正在积极发展。采取的策略是评估服务裂纹的断裂表面的外观，并与具有活性SCC的实验室标本的预期值进行比较。这项研究的结论如下。要判断维修管道中的裂纹是活动的还是处于休眠状态，比较维修裂纹的极裂纹尖端和实验室样品中的新裂纹是合理的。如果活动实验室样品的裂纹尖端与维修管道的裂纹尖端相似，则意味着维修管道中的裂纹很可能处于活动状态。从维修管道和实验室样品之间的裂纹尖端的比较来看，从维修中提取的样品中的裂纹似乎最有可能是活性晶间应力腐蚀裂纹。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号