TY - JOUR

T1 - Investigations on the tensile deformation of pure Mg and Mg–15Gd alloy by in-situ X-ray synchrotron radiation and visco-plastic self-consistent modeling

AU - Xu, Yuling

AU - Huang, Yuanding

AU - Wang, Yuye

AU - Gan, Weiming

AU - Wang, Shiwei

AU - Maawad, Emad

AU - Schell, Norbert

AU - Hort, Norbert

N1 - The authors acknowledge the help and support of Mr. Günther Meister (MagIC, HZG) during casting. The authors thank Prof. Walter Reimers (FMW, TU Berlin) for offering help of extrusion processing. The present work was sponsored by the China Postdoctoral Science Foundation (Grant No. 2020M673156) and Shanghai Pujiang Program (Grant No. 20PJ1404900). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at P07 beamline of HZG. Publisher Copyright: © 2021

PY - 2023/2/1

Y1 - 2023/2/1

N2 - In this study, the texture evolutions of two Mg materials during tension are explored. In-situ X-ray synchrotron and Visco-Plastic Self-Consistent (VPSC) modeling are employed to investigate the different deformation modes between pure Mg and Mg–15Gd (wt.%) alloy. These two materials with a strong extrusion texture show large different slip/twinning activity behaviors during tensile deformation. The basal 〈a〉 slip has the highest contribution to the initial stage of plastic deformation for pure Mg. During the subsequent plastic deformation, the prismatic slip is dominant due to the strong ED // 〈100〉 fiber texture. In contrast, the deformation behavior of Mg–15Gd alloy is more complex. Twinning and basal slip are dominant at the early stage of plastic deformation, but further deformation results in the increased activation of prismatic and pyramidal slips. In comparison to pure Mg, the ratios of the critical resolved shear stress (CRSS) between non-basal slip and basal slip of the Mg–15Gd alloy are much lower.

AB - In this study, the texture evolutions of two Mg materials during tension are explored. In-situ X-ray synchrotron and Visco-Plastic Self-Consistent (VPSC) modeling are employed to investigate the different deformation modes between pure Mg and Mg–15Gd (wt.%) alloy. These two materials with a strong extrusion texture show large different slip/twinning activity behaviors during tensile deformation. The basal 〈a〉 slip has the highest contribution to the initial stage of plastic deformation for pure Mg. During the subsequent plastic deformation, the prismatic slip is dominant due to the strong ED // 〈100〉 fiber texture. In contrast, the deformation behavior of Mg–15Gd alloy is more complex. Twinning and basal slip are dominant at the early stage of plastic deformation, but further deformation results in the increased activation of prismatic and pyramidal slips. In comparison to pure Mg, the ratios of the critical resolved shear stress (CRSS) between non-basal slip and basal slip of the Mg–15Gd alloy are much lower.

KW - In-situ investigation

KW - Mechanical behavior

KW - Mg alloy

KW - Texture

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85111048384&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/285e1464-b792-3fb7-b375-f568f8b39884/

U2 - 10.1016/j.jma.2021.06.011

DO - 10.1016/j.jma.2021.06.011

M3 - Journal articles

AN - SCOPUS:85111048384

VL - 11

SP - 607

EP - 613

JO - Journal of Magnesium and Alloys

JF - Journal of Magnesium and Alloys

SN - 2213-9567

IS - 2

ER -