+Advanced Search
Anisotropic fatigue cracking behavior of AZ31 Mg alloy based on acoustic emission
Author:
Affiliation:

College of Materials Science and Engineering,Taiyuan University of Technology,# Yingze West Street, Taiyuan,PR China

Clc Number:

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    Fatigue crack propagation experiment of AZ31 magnesium alloy in different direction were conducted accompanied by acoustic emission monitoring, and the results presented similarities with the conventional results. Acoustic emission hit counts has a liner relationship with the stress intensity factor range during the stable cracking stage, and the turning point of dC/dN-ΔK curves had error of 2.86%(along the rolling direction)and 3.00% (vertical to the rolling direction) with that of da/dN-ΔK. The crack along the rolling direction propagated slower than another direction, and the reason could be listed as follows: there was obvious quasi-cleavage fracture and more twins when the crack propagated vertical to the rolling direction, which could stop cracking at some extent. So the crack resistance of rolling direction below another direction. and acoustic emission technique was a practical method to study the fracture behavior.

    Reference
    Related
    Cited by
Get Citation

[Yinghu Su, Xiaojiao Wang, Chenghao Li, Hongxia Zhang, Zhifeng Yan, Yonglian Li. Anisotropic fatigue cracking behavior of AZ31 Mg alloy based on acoustic emission[J]. Rare Metal Materials and Engineering,2019,48(1):177~182.]
DOI:10.12442/j. issn.1002-185X.20170427

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:May 23,2017
  • Revised:July 17,2017
  • Adopted:August 18,2017
  • Online: February 18,2019
  • Published: