Surface crack detection in welds using thermography

被引：116

作者：

Broberg, Patrik ^{[1
]}

机构：

[1] Univ West, Dept Engn Sci, SE-46186 Trollhattan, Sweden

来源：

NDT & E INTERNATIONAL | 2013年 / 57卷

关键词：

Surface flaw; Thermography; Welding Crack;

D O I：

10.1016/j.ndteint.2013.03.008

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermography is today used within non-destructive testing for detecting several different types of defects. The possibility for using thermography for detecting surface cracks in welded metal plates has here been investigated. During testing the weld is illuminated using a high power infrared light source. Due to surface cracks acting like black bodies, they will absorb more energy than the surrounding metal and can be identified as a warmer area when imaged using an infrared camera. Notches as well as real longitudinal cold cracks in a weld are investigated using the presented method. The results show that thermography is promising as a method for detection cracks open to the surface. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：69 / 73

页数：5

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