SCRIPTA MATERIALIA | 卷:120 |
Elastic interaction between twins during tensile deformation of austenitic stainless steel | |
Article | |
Juul, Nicolai Ytterdal1  Winther, Grethe1  Dale, Darren2  Koker, Margaret K. A.2  Shade, Paul3  Oddershede, Jette4  | |
[1] Tech Univ Denmark, Dept Mech Engn, Prod Torvet, DK-2800 Lyngby, Denmark | |
[2] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA | |
[3] Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA | |
[4] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark | |
关键词: Tension test; Three-dimensional X-ray diffraction (3DXRD); Austenitic steels; Elastic behaviour; Twinning; | |
DOI : 10.1016/j.scriptamat.2016.03.022 | |
来源: Elsevier | |
【 摘 要 】
In austenite, the twin boundary normal is a common elastically stiff direction shared by the two twins, which may induce special interactions. By means of three-dimensional X-ray diffraction this elastic interaction has been analysed and compared to grains separated by conventional grain boundaries. However, the components of the Type II stress normal to the twin boundary plane exhibit the same large variations as for the grain boundaries. Elastic grain interactions are therefore complex and must involve the entire set of neighbouring grains. The elastic-regime stress along the tensile direction qualitatively depends on the grain orientation, but grain-to grain variations are large. (C) 2016 Elsevier Ltd. All rights reserved.
【 授权许可】
Free
【 预 览 】
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