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Residual Stress Effect on the Delayed Fracture of Twinning-Induced Plasticity Steels

Title
Residual Stress Effect on the Delayed Fracture of Twinning-Induced Plasticity Steels
Authors
KIM, JUNGGIJAEIK, YOONSEUNG, MI BAEKSeo, M.H.Cho, W.T.Chin, K.-G.LEE, SUNG HAKKim, H.S.
POSTECH Authors
LEE, SUNG HAKKim, H.S.
Date Issued
Jun-2017
Publisher
SPRINGER
Abstract
Residual stress effect of the deep drawn TWIP steel on delayed fracture was investigated. Microstructural features of the TWIP steels did not change after stress relief annealing, while the elastic lattice strain dropped to 0.0007. Delayed fracture of the drawn TWIP steel occurred after 203?hours of HCl immersion testing, but did not occur in the annealed one. It is clear that residual stress after the drawing is the primary reason for the delayed fracture of TWIP steels. ? 2017, The Minerals, Metals & Materials Society and ASM International.
Residual stress effect of the deep drawn TWIP steel on delayed fracture was investigated. Microstructural features of the TWIP steels did not change after stress relief annealing, while the elastic lattice strain dropped to 0.0007. Delayed fracture of the drawn TWIP steel occurred after 203?hours of HCl immersion testing, but did not occur in the annealed one. It is clear that residual stress after the drawing is the primary reason for the delayed fracture of TWIP steels. ? 2017, The Minerals, Metals & Materials Society and ASM International.
Residual stress effect of the deep drawn TWIP steel on delayed fracture was investigated. Microstructural features of the TWIP steels did not change after stress relief annealing, while the elastic lattice strain dropped to 0.0007. Delayed fracture of the drawn TWIP steel occurred after 203?hours of HCl immersion testing, but did not occur in the annealed one. It is clear that residual stress after the drawing is the primary reason for the delayed fracture of TWIP steels. ? 2017, The Minerals, Metals & Materials Society and ASM International.
URI
http://oasis.postech.ac.kr/handle/2014.oak/50434
DOI
10.1007/s11661-017-4056-3
ISSN
1073-5623
Article Type
Article
Citation
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, vol. 48, no. 6, page. 2692 - 2696, 2017-06
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 LEE, SUNG HAK
Dept of Materials Science & Enginrg
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