{"title":"Study on Phased Array Ultrasonic Testing Techniques for Austenitic Stainless Steel Butt Welds","authors":"Chengwen Li, Rui wang, Zhihong Liu, Haibiao Ji, Shijun Qin, Ren Chen, Yaqi Zhong, Huapeng Wu","doi":"10.1007/s10894-025-00475-6","DOIUrl":null,"url":null,"abstract":"<div><p>The procedure of ultrasonic testing for austenitic stainless steel welds relies heavily on the accurate assessment of actual welding faults. The research subject of this paper is a 40 mm 316L stainless steel butt weld, utilized in fusion reactors. Based on the weld acoustic performance test, sound field modeling, and reference block method, a double crystal probe S-Scan (sector scan) process is suggested. To detect the missed vertical-type groove flaws, a waveform conversion-based total focusing method (TFM) is developed. The study's findings demonstrate that the reliability of ultrasonic testing of austenitic stainless steel welds can be significantly increased by combining conventional sector scanning with cutting-edge TFM technology.</p></div>","PeriodicalId":634,"journal":{"name":"Journal of Fusion Energy","volume":"44 1","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Fusion Energy","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10894-025-00475-6","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
The procedure of ultrasonic testing for austenitic stainless steel welds relies heavily on the accurate assessment of actual welding faults. The research subject of this paper is a 40 mm 316L stainless steel butt weld, utilized in fusion reactors. Based on the weld acoustic performance test, sound field modeling, and reference block method, a double crystal probe S-Scan (sector scan) process is suggested. To detect the missed vertical-type groove flaws, a waveform conversion-based total focusing method (TFM) is developed. The study's findings demonstrate that the reliability of ultrasonic testing of austenitic stainless steel welds can be significantly increased by combining conventional sector scanning with cutting-edge TFM technology.
期刊介绍：
The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews.
This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.
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