Ultrasonic TOFD testing for aluminum alloy weld of thick plate

来源期刊：中国有色金属学报(英文版)2005年第z2期

论文作者：刚铁 徐艳 迟大钊 吕品

文章页码：79 - 82

Key words：TOFD； ultrasonic testing； image feature； aluminum alloy

Abstract: The ultrasonic time of flight diffraction (TOFD) testing method for aluminum alloy weld of thick plate was introduced, and the basic defect image features of crack in shape at different positions A, B, C were discussed. The TOFD testing for weld joints was carried out. The results show that the TOFD method has a good measurement accuracy and a good ability of finding the defect of crack in shape.