Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5357484 | Applied Surface Science | 2015 | 9 Pages |
Abstract
During uniaxial planar compression of annealed aluminium alloys, a novel approach to determine the surface asperity flattening (roughness Ra) is employed by analyzing the evolution of the surface's micro-texture. With an increase in compression strain, the surface asperity tends to be flattened, and strain hardening increases. Lubrication can constrain the surface asperity flattening process and hinder the progress of grain surface flattening. The development of surface texture shows an obvious dependency: under the influence of friction, the normal deformation texture component (brass orientation {Â 0Â 1Â 1} ã1Â 1Â 2ã) can be generated easily, while lubrication can hinder this texture component generation. Simulated results show a good agreement with experimental results which predicated brass orientation. However, due to the limitation of the FCC Taylor model, the other orientation components cannot be predicted.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Hejie Li, Andreas Ãchsner, Dongbin Wei, Guowei Ni, Zhengyi Jiang,