• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Advanced Nondestructive Evaluation >Application of Ultrasonic Test on Creep-Fatigue Life Evaluation
【24h】

Application of Ultrasonic Test on Creep-Fatigue Life Evaluation

机译：超声波试验在蠕变疲劳寿命评价中的应用

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

摘要

This work investigates the relationship between the creep-fatigue life and ultrasonic test of creep-fatigue damage. Under the creep-fatigue interaction, the main cause of life reduction is the initiation and growth of microvoid with increasing hold time. The number/size of microvoid/cavity, the fraction of cavity area varied with the hold time. Therefore, the life evaluation using the microvoid with the variation of hold time is very informative for safety of components in power plants. In this study, using the heat resisting alloy, P122 steel for USC (ultra super critical) power plant, the creep-fatigue tests with various hold times and their ultrasonic inspection were carried out for the purpose of evaluation for creep-fatigue life. The results obtained by Rayleigh surface wave of backscattered ultrasound were compared and analyzed with the experimental parameters. The good agreement between the experimental life and the predicted life was obtained.
机译：这项工作调查了蠕变疲劳损伤的蠕变 - 疲劳寿命与超声波试验之间的关系。在蠕变 - 疲劳相互作用下，寿命的主要原因是微脂肪的开始和生长随着保持时间的增加。微孔/腔的数量/尺寸，腔面积的级分具有保持时间。因此，使用微宽度与保持时间变化的寿命评估非常有效地提供了发电厂组件的安全性。在本研究中，使用耐热合金，用于USC（超级关键态度）发电厂的P122钢，进行各种保持时间及其超声检查的蠕变疲劳试验，用于评估蠕变 - 疲劳寿命。通过实验参数进行比较并分析由瑞利表面波的瑞利表面浪潮获得的结果。获得实验生命与预测寿命之间的良好一致性。

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