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Evaluation of the Ductile-Brittle Transition Behaviour of Aging Specimens by the Fracture Toughness Test

机译:用断裂韧性试验评估试样的延性-脆性转变行为

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摘要

The safety and reliability of industrial machineries and structures used in various, and severe conditions has become an increasing concern. This study proposes ductile-brittle transition temperature (DBTT) evaluation technique by the sub-sized specimen test to prevent cleavage fracture. Four classes of the thermally aged 1Cr-1Mo-0.25V specimens were prepared. The fracture toughness tests were performed on sub-sized specimens both at room and low temperatures. The results of the fracture toughness tests were analyzed to obtain the DBT behaviours of the specimen materials
机译:在各种恶劣条件下使用的工业机械和结构的安全性和可靠性已成为日益关注的问题。这项研究提出了通过子尺寸试样测试的韧性-脆性转变温度(DBTT)评估技术,以防止乳沟断裂。准备了四类热老化的1Cr-1Mo-0.25V标本。断裂韧性测试是在室温和低温下对小尺寸的试样进行的。分析断裂韧度测试的结果以获得试样材料的DBT行为

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