Microstructural and Fractographic Characterization of a Thermally Embrittled Nuclear Grade Steel: Part I - Annealing

José R. Tarpani; Maria H.P. Braz; Waldek W. Bose Filho; Dirceu Spinelli

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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microstructural and Fractographic Characterization of a Thermally Embrittled Nuclear Grade Steel: Part I - Annealing

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Author(s):	José R. Tarpani ^[1] ; Maria H.P. Braz ^[2] ; Waldek W. Bose Filho ^[3] ; Dirceu Spinelli ^[4] Total Authors: 4
Affiliation:	^[1] University of São Paulo. Engineering School of São Carlos - Brasil ^[2] University of São Paulo. Engineering School of São Carlos - Brasil ^[3] University of São Paulo. Engineering School of São Carlos - Brasil ^[4] University of São Paulo. Engineering School of São Carlos - Brasil Total Affiliations: 4
Document type:	Journal article
Source:	MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 5, n. 3, p. 357-364, 2002-09-00.
Abstract
A nuclear reactor pressure vessel steel was submitted to different annealing heat treatments aimed at simulating neutron irradiation damage. The obtained microstructures were mechanically tested with subsequent metallographic and fractographic characterization. The relevant microstructural and fractographic aspects were employed in the interpretation of the mechanical behavior of the microstructures in both quasi-static (J-R curve) and dynamic (Charpy impact) loading regimes. A well defined relationship was determined between the elastic-plastic fracture toughness parameter J-integral and the Charpy impact energy for very most of the microstructures. (AU)

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