Through-Thickness Residual Stresses, Microstructure, and Mechanical Properties of Electron Beam-Welded CA6NM Martensitic Stainless Steel after Postweld Heat Treatment

Autor:	Sheida Sarafan, Priti Wanjara, Jean-Benoît Lévesque, Javad Gholipour, Henri Champliaud, Louis Mathieu
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Advances in Materials Science and Engineering, Vol 2020 (2020)
Druh dokumentu:	article
ISSN:	1687-8434 1687-8442
DOI:	10.1155/2020/7194214
Popis:	In this study, the integrity of electron beam- (EB-) welded CA6NM—a grade of 13% Cr-4% Ni martensitic stainless steel—was assessed through the entire joint thickness of 90 mm after postweld heat treatment (PWHT). The joints were characterized by examining the microstructure, residual stresses, global mechanical properties (static tensile, Charpy impact, and bend), and local properties (yield strength and strain at fracture) in the metallurgically modified regions of the EB welds. The applied PWHT tempered the “fresh” martensite present in the microstructure after welding, which reduced sufficiently the hardness (
Databáze:	Directory of Open Access Journals
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