Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test

The intergranular cracking in the Mg-Gd-Y alloy was investigated by an in situ tension test combined with an electron backscattered diffraction (EBSD) measurement and digital image correlation (DIC). During the tension test, the crack was found at the triangle point of the grain boundary area with p...

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Main Authors: Jianhua Liu, Jie Sun, Qingqiang Chen, Laixiao Lu
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/12/8/1040
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author Jianhua Liu
Jie Sun
Qingqiang Chen
Laixiao Lu
author_facet Jianhua Liu
Jie Sun
Qingqiang Chen
Laixiao Lu
author_sort Jianhua Liu
collection DOAJ
description The intergranular cracking in the Mg-Gd-Y alloy was investigated by an in situ tension test combined with an electron backscattered diffraction (EBSD) measurement and digital image correlation (DIC). During the tension test, the crack was found at the triangle point of the grain boundary area with profuse slip traces. DIC results show that inhomogeneous strain distribution can be found at the triangle point area, leads to serious deformation incompatibility at this point. This also leads to a weak point for crack initiation, and as tension strain increases, the crack would extend from the weak point along the grain boundary.
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spelling doaj.art-064058bf3cc94df1ba7cdf1b25c1ed592023-11-30T21:10:14ZengMDPI AGCrystals2073-43522022-07-01128104010.3390/cryst12081040Intergranular Cracking in Mg-Gd-Y Alloy during Tension TestJianhua Liu0Jie Sun1Qingqiang Chen2Laixiao Lu3School of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Mechanical and Electronic Engineering, Shandong Jianzhu University, Jinan 250101, ChinaThe intergranular cracking in the Mg-Gd-Y alloy was investigated by an in situ tension test combined with an electron backscattered diffraction (EBSD) measurement and digital image correlation (DIC). During the tension test, the crack was found at the triangle point of the grain boundary area with profuse slip traces. DIC results show that inhomogeneous strain distribution can be found at the triangle point area, leads to serious deformation incompatibility at this point. This also leads to a weak point for crack initiation, and as tension strain increases, the crack would extend from the weak point along the grain boundary.https://www.mdpi.com/2073-4352/12/8/1040magnesium alloyductilitygrain boundarycharacteristicselectron microscopy
spellingShingle Jianhua Liu
Jie Sun
Qingqiang Chen
Laixiao Lu
Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
Crystals
magnesium alloy
ductility
grain boundary
characteristics
electron microscopy
title Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
title_full Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
title_fullStr Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
title_full_unstemmed Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
title_short Intergranular Cracking in Mg-Gd-Y Alloy during Tension Test
title_sort intergranular cracking in mg gd y alloy during tension test
topic magnesium alloy
ductility
grain boundary
characteristics
electron microscopy
url https://www.mdpi.com/2073-4352/12/8/1040
work_keys_str_mv AT jianhualiu intergranularcrackinginmggdyalloyduringtensiontest
AT jiesun intergranularcrackinginmggdyalloyduringtensiontest
AT qingqiangchen intergranularcrackinginmggdyalloyduringtensiontest
AT laixiaolu intergranularcrackinginmggdyalloyduringtensiontest