| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7979166 | Materials Science and Engineering: A | 2015 | 12 Pages |
Abstract
The fatigue behavior of three different AA2524 alloy sheets respectively with dominant Goss+Cube-grains, Cube-grains and Cube+Brass-grains was characterized in present work. Results showed Goss+Cube-grain sheet possessed a much lower fatigue crack propagation (FCP) rate than Cube-grain sheet and Cube+Brass sheet. The Cube+Brass sheet had the greatest fatigue crack propagation rate among the three kinds of commercial sheet in spite of the grain size smaller than Cube-grain sheet. EBSD detection results indicated Goss-grains had a twist component boundary or great tilt angle component boundary with the neighboring grains, thereby retarding fatigue crack propagation in fatigue Stage II more effectively. Apparently, the high intense Goss-grains were responsible for the enhanced fatigue crack propagation resistance of AA2524 alloy.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Zhiyi Liu, Fudong Li, Peng Xia, Song Bai, Yanxia Gu, Dier Yu, Sumin Zeng,