{"title":"Features of failure with cleavage after ctod tests of low-carbon microalloyed marine steel S460MLO during crack opening tests","authors":"E. A. Goli-Oglu, A. N. Filatov","doi":"10.1007/s11015-024-01821-3","DOIUrl":null,"url":null,"abstract":"<div><p>Using results of testing industrial batches of 23 mm thick steel heavy plates after thermomechanical rolling and subsequent post-welding heat treatment, features are analyzed for fatigue crack formation within a specimen fracture during CTOD (Crack Tip Opening Displacement) testing for fracture toughness. Visual, microstructural, and fractographic studies are conducted on the nature of fracture formation and fatigue crack propagation mechanisms. Probable causes of a potential “pop-in” effect on load-displacement diagrams of notch opening displacement are described, as well as its potentially unfavourable effect on test result interpretation.</p></div>","PeriodicalId":702,"journal":{"name":"Metallurgist","volume":"68 8","pages":"1111 - 1121"},"PeriodicalIF":0.8000,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metallurgist","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11015-024-01821-3","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
Abstract
Using results of testing industrial batches of 23 mm thick steel heavy plates after thermomechanical rolling and subsequent post-welding heat treatment, features are analyzed for fatigue crack formation within a specimen fracture during CTOD (Crack Tip Opening Displacement) testing for fracture toughness. Visual, microstructural, and fractographic studies are conducted on the nature of fracture formation and fatigue crack propagation mechanisms. Probable causes of a potential “pop-in” effect on load-displacement diagrams of notch opening displacement are described, as well as its potentially unfavourable effect on test result interpretation.
期刊介绍：
Metallurgist is the leading Russian journal in metallurgy. Publication started in 1956.
Basic topics covered include:
State of the art and development of enterprises in ferrous and nonferrous metallurgy and mining;
Metallurgy of ferrous, nonferrous, rare, and precious metals; Metallurgical equipment;
Automation and control;
Protection of labor;
Protection of the environment;
Resources and energy saving;
Quality and certification;
History of metallurgy;
Inventions (patents).
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