Finite element analysis of pitting pit on residual strength of magnesium alloy welded joint-Reference-Cited by-同舟云学术

Finite element analysis of pitting pit on residual strength of magnesium alloy welded joint

Published:2022-11-01 Issue:11 Volume:12 Page:115313
ISSN:2158-3226
Container-title:AIP Advances
language:en
Short-container-title:AIP Advances

Author:

Gong Xiaoyuan¹^ORCID,Liu Jinming²,Li Junqi³,Xiao Fengqing³

Affiliation:

1. Department of Materials, Jinzhong University, Shanxi Province 030619, China

2. Materials Science and Engineering Academy, Taiyuan University of Science and Technology, Taiyuan 030024, China

3. Foxconn (China), Shanxi Province, Taiyuan 030032, China

Abstract

This work analyzes the Tungsten Inert Gas (TIG)welded joint of AZ31 magnesium alloy and the pitting corrosion stress field at different depths under tensile load via the ANSYS finite element method. The strengths of the stress and strain fields inside the corrosion pit were substantially higher than the average strength level of the matrix. Therefore, under the influence of the applied load, the corrosion pit will fail first. Based on the study of pitting corrosion, a model was developed to explain how pitting corrosion cracks propagate in magnesium alloy welded joints. Finally, the variation of residual strength was revealed to study the corrosion dynamic mechanism of the joints.

Funder

Scientific and Technological Innovation Projects of Colledges and Universities in ShanXi Province

The Collaborative Innovation Center for the Modified Application of Lightweight Materials

Publisher

AIP Publishing

Subject

General Physics and Astronomy

Link

https://aip.scitation.org/doi/pdf/10.1063/5.0090432

Reference12 articles.

1. Fundamentals and advances in magnesium alloy corrosion

2. Prediction of corrosion fatigue crack initiation behavior of A7N01P-T4 aluminum alloy welded joints

3. Influence of microstructure on the corrosion of diecast AZ91D