| 用超声衍射时差法对焊缝缺陷定性表征 |
| |
| 引用本文： | 梁宏林,滕永平,吕香慧.用超声衍射时差法对焊缝缺陷定性表征[J].无损检测,2006,28(1):14-16. |
| |
| 作者姓名： | 梁宏林 滕永平 吕香慧 |
| |
| 作者单位： | 1. 北京交通大学,北京,100044
2. 63653部队,新疆,马兰,841700 |
| |
| 摘 要： | 采用超声衍射时差法（TOFD）检测焊缝中大量的缺陷，分析各类典型缺陷的响应特征，总结用TOFD技术对缺陷定性的方法，并与普通超声波检测结果进行对比。较之普通超声波检测，TOFD法直观，信息量大，对人员的依赖性低且定性准确。
|
| 关 键 词： | 超声波检测 衍射时差法 焊缝 缺陷定性 |
| 文章编号： | 1000-6656（2006）01-0014-03 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004年12月20 |
Characterization of the Defects in Welds by Ultrasonic Time-of-Flight Diffraction Technique |
| |
| LIANG Hong-lin,TENG Yong-ping,L Xiang-hui.Characterization of the Defects in Welds by Ultrasonic Time-of-Flight Diffraction Technique[J].Nondestructive Testing,2006,28(1):14-16. |
| |
| Authors: | LIANG Hong-lin TENG Yong-ping L Xiang-hui |
| |
| Affiliation: | 1.Beijing Jiaotong University, Beijing 100044, China; 2.63653 Army, Malan Xinjiang 841700, China |
| |
| Abstract: | Many defects in welds were detected by ultrasonic time-of-flight diffraction(TOFD) technique. The signal characteristics responded by the typical defects in weld were analyzed. The discrimination of defects by TOFD was described in detail and the results were compared with those by normal ultrasonic testing. It was showed that TOFD technique was superior to normal ultrasonic testing technique in intuitive display, abundant information and inspector-independent detection and accurate defect discrimination. |
| |
| Keywords: | Ultrasonic testing Time-of-flight diffraction Weld Flaw discrimination |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
