On the Relation of Grain Orientation and Opening Crack of an Al-Cu-Mg Sheet

• 作者: Cai Hu
• 来源期刊: 工程(英文)(1947-3931)
• 学科: 工学
• 关键词: AL-CU-MG SHEET TEARING CRACK Grain Orientation PLANE CRACK Propagation
• 年，卷（期）: gc-eng_2017,（5）
• 页码范围: 510-516
• 页数: 7页
• 分类号: TG14

摘要

In this paper, the orientation of grains which adjacent to a developed opening crack was investigated by EBSD. A definition of θ has been came up with which represents the angle between the principal stress plane and each plane of the grains. Smaller θ means easier to crack. It gave a good explanation of the crack propagation throughout the grains. It also revealed that propagation path is along with the plane. This finding will give a prediction of tear properties and help us understanding the cracking mechanism and the behavior of tearing.