PARENT Quick Blind Round-Robin Test Report

Braatz, Brett G.¹  Heasler, Patrick G.¹  Meyer, Ryan M.² 

[1] Pacific Northwest National Lab. (PNNL), Richland, WA (United States);Pacific Northwest National Lab. (PNNL), Richland, WA (Unit

关键词: PWSCC;    IGSCC;    cracks;    dissimilar metal welds detection;   

DOI  :  10.2172/1177713
RP-ID  :  PNNL--22677
PID  :  OSTI ID: 1177713
Others  :  Other: 401001060

美国|英语

来源: SciTech Connect

【 摘 要 】

The U.S. Nuclear Regulatory Commission has established the Program to Assess the Reliability of Emerging Nondestructive Techniques (PARENT) whose goal is to investigate the effectiveness of current and novel nondestructive examination procedures and techniques to find flaws in nickel-alloy welds and base materials. This is to be done by conducting a series of open and blind international round-robin tests on a set of piping components that include large-bore dissimilar metal welds, small-bore dissimilar metal welds, and bottom-mounted instrumentation penetration welds. The blind testing is being conducted in two segments, one is called Quick-Blind and the other is called Blind. The Quick-Blind testing and destructive analysis of the test blocks has been completed. This report describes the four Quick-Blind test blocks used, summarizes their destructive analysis, gives an overview of the nondestructive evaluation (NDE) techniques applied, provides an analysis inspection data, and presents the conclusions drawn.