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

Hyung Ick Kim; Yong Huh; Jae Sil Park; Chang Sung Seok

doi:10.4028/www.scientific.net/KEM.321-323.536

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 321-323Evaluation of the Ductile-Brittle Transition...

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

Abstract:

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

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Periodical:

Key Engineering Materials (Volumes 321-323)

Pages:

536-540

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https://doi.org/10.4028/www.scientific.net/KEM.321-323.536

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Online since:

October 2006

Authors:

Hyung Ick Kim, Yong Huh, Jae Sil Park, Chang Sung Seok

Keywords:

DBTT, Degradation, Fracture Toughness, Subsize Specimen

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