Subsurface Interfacial Defects of Metal Materials Testing Using Ultrasound Infrared Lock-in Thermography

被引：0
|
作者：
Tang Qingju [1 ]
Liu Junyan [1 ]
Wang Yang [1 ]
Liu Hui [1 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
来源：
INTERNATIONAL WORKSHOP ON AUTOMOBILE, POWER AND ENERGY ENGINEERING | 2011年 / 16卷
关键词：
ultrasound infrared lock-in thermography; interfacial defects; amplitude; phase; modulation frequency;
D O I：
10.1016/j.proeng.2011.08.1116
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A novel non-destructive ultrasound infrared lock-in thermography (ULT) testing method was presented in order to detect metal specimens with subsurface contacting interfacial defects. An experimental platform was built. Experiments had been carried out to Q235 plates with different testing parameters. The testing effect of amplitude and phase images was analyzed, and the relation between amplitude difference, phase difference, signal-to-noise ratio and modulation frequency was discussed. An adaptive neuro-fuzzy inference system model was built to forecast the depth of defects. (C) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Society for Automobile, Power and Energy Engineering
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页数：7
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