Korean Round-Robin Tests Result for New International Program to Assess the Reliability of Emerging Nondestructive Techniques

• Published in: Nuclear engineering and technology Vol. 49; no. 3; pp. 651 - 661
• Main Authors: Kim, Kyung Cho, Kim, Jin Gyum, Kang, Sung Sik, Jhung, Myung Jo
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.04.2017; Elsevier; 한국원자력학회
• Subjects: Bottom-mounted Instrumentation; Dissimilar Metal Weld; Nondestructive Techniques; Round-robin Test; Stress Corrosion Cracking; 원자력공학; Round-robin Test; Stress Corrosion Cracking; Dissimilar Metal Weld; Bottom-mounted Instrumentation; Nondestructive Techniques
• ISSN: 1738-5733; 2234-358X
• DOI: 10.1016/j.net.2016.09.006

The Korea Institute of Nuclear Safety, as a representative organization of Korea, in February 2012 participated in an international Program to Assess the Reliability of Emerging Nondestructive Techniques initiated by the U.S. Nuclear Regulatory Commission. The goal of the Program to Assess the Reliability of Emerging Nondestructive Techniques is to investigate the performance of emerging and prospective novel nondestructive techniques to find flaws in nickel-alloy welds and base materials. In this article, Korean round-robin test results were evaluated with respect to the test blocks and various nondestructive examination techniques. The test blocks were prepared to simulate large-bore dissimilar metal welds, small-bore dissimilar metal welds, and bottom-mounted instrumentation penetration welds in nuclear power plants. Also, lessons learned from the Korean round-robin test were summarized and discussed.