Variant selection of twins with low Schmid factors in cross grain boundary twin pairs in a magnesium alloy - Université de Lorraine Access content directly
Conference Papers Year : 2015

Variant selection of twins with low Schmid factors in cross grain boundary twin pairs in a magnesium alloy

Abstract

Samples of magnesium AZ31 alloys are deformed in compression at room temperature under a strain rate of 1×10−3 s−1. The initial texture with respect to the loading direction is favorable for {10-12}<-1011> extension twinning during the deformation. At an engineering strain of 2.75%, many extension twins are found to be connected with each other at grain boundaries, forming cross grain boundary twin pairs. Some have low positive or even negative Schmid factors (SFs). The variant selection of them are interpreted in terms of shear accommodations. The observed twin variants require the least or no accommodation through deformation modes with high CRSSs, but the most or more accommodation through those with low CRSSs.
Fichier principal
Vignette du fichier
Shi_2015_IOP_Conf._Ser.__Mater._Sci._Eng._82_012021.pdf (910.03 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01518116 , version 1 (04-05-2017)

Identifiers

Cite

Zhang-Zhi Shi, Yudong Zhang, Francis Wagner, P. -A. Juan, Stéphane Berbenni, et al.. Variant selection of twins with low Schmid factors in cross grain boundary twin pairs in a magnesium alloy. ICOTOM 17 - 17th International Conference on Textures of Materials, Aug 2014, Dresde, Germany. pp.012021, ⟨10.1088/1757-899X/82/1/012021⟩. ⟨hal-01518116⟩
142 View
139 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More