Hong, Sung-Min Min, Dong-Joon Chung, Yong-Keun Kim, Ju-Heon Kim, Dong-Ik Suh, Jin-Yoo Shim, Jae-Hyeok Jung, Woo-Sang Choi, In-Suk 2024-01-20T05:03:11Z 2024-01-20T05:03:11Z 2021-09-05 2016-01-27 0921-5093 https://pubs.kist.re.kr/handle/201004/124494 We investigated the effect of preexisting plastic deformation with the strain of 30% on the creep behavior of TP347 austenitic steel at 650 degrees C with different applied stresses. The results showed that the creep rupture life of the prestrained sample increased more than that of the unstrained sample tested at 300, 250 and 200 MPa due to the strengthening of the mechanical twins induced by preexisting plastic deformation. Conversely, the prestrained samples were ruptured earlier than that of the unstrained sample tested when the lower creep stresses (150 and 125 MPa) were applied. The shorter creep rupture life of the prestrained sample was due to the reduced amount of time to a minimum creep rate and the shorter tertiary-stage creep time which can be related to the accelerated precipitation of sigma phase at the grain boundaries in the strained sample. (C) 2015 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA MULTICOMPONENT MULTIPHASE SYSTEMS 316 STAINLESS-STEEL PRECIPITATION KINETICS MICROSTRUCTURE MECHANISMS EVOLUTION DAMAGE Effect of preexisting plastic deformation on the creep behavior of TP347 austenitic steel Article 10.1016/j.msea.2015.12.051 1 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.654, pp.390 - 399 MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 654 390 399 scie scopus 000370111100045 2-s2.0-84951781124 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Science & Technology - Other Topics Materials Science Metallurgy & Metallurgical Engineering Article MULTICOMPONENT MULTIPHASE SYSTEMS 316 STAINLESS-STEEL PRECIPITATION KINETICS MICROSTRUCTURE MECHANISMS EVOLUTION DAMAGE TP347 austenitic steel Creep properties Strain-induced precipitation Sigma phase