Detection and Sizing of Defects in Complex Geometry Weld by Manual Ultrasonic Time of Flight Diffraction Inspection

被引：14
|
作者：
Nath, S. K. [1 ]
Balasubramaniam, Krishnan [2 ,3 ]
Krishnamurthy, C. V. [2 ,3 ]
Narayana, B. H. [1 ]
机构：
[1] Cent Power Res Inst, Thermal Res Ctr, Nagpur 441111, Maharashtra, India
[2] Indian Inst Technol, Dept Mech Engn, Madras 600036, Tamil Nadu, India
[3] Indian Inst Technol, Ctr Nondestruct Evaluat, Madras 600036, Tamil Nadu, India
来源：
JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 2009年 / 131卷 / 05期
关键词：
diffraction; inspection; ultrasonic diffraction; ultrasonic materials testing; welds; SURFACE-BREAKING CRACKS; TOFD TECHNIQUE; PIPELINE; IDENTIFICATION;
D O I：
10.1115/1.3141436
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The basic aim of this current research is to reliably detect and size defects in complex geometry welds using the well-known ultrasonic time of flight diffraction (TOFD) technique. A complex geometry weld specimen with various artificial defects was designed and fabricated. Different combinations of probe angles and probe center spacings were used in experiments for determining the optimum one. TOFD models were also developed for sizing the defects and experimentally verified.
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页数：9
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