Nanomechanics of Mg-Al intermetallic compounds |
| |
Authors: | M.-X. Zhang H. Huang Y.-N. Shi |
| |
Affiliation: | a School of Mechanical and Mining Engineering, The University of Queensland, Brisbane Qld 4072, Australia b ARC Centre of Excellence for Design in Light Metals, Australia c Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
| |
Abstract: | Cold spraying of pure Al powder on a pure Mg substrate together with subsequent post-spray annealing treatment produced Mg17Al12 (β-phase) and Mg2Al3 (γ-phase) intermetallic layers on the surface of the substrate. These layers showed significantly better nanomechanical properties, including the reduced elastic modulus and nanohardness, which were determined using nanoindentation, than commercial purity Mg and AZ91 alloys. Combined with their improved corrosion resistance, it is believed that both the γ-phase and the β-phase layers can provide effective protection of Mg alloys from wear and corrosion. The effect of post-spray annealing process on the formation of thick, uniform and dense intermetallic layers on pure Mg substrate was also investigated. |
| |
Keywords: | Magnesium alloy Intermetallic compound Nanoindentation Kinetic metallization Cold spray |
本文献已被 ScienceDirect 等数据库收录! |
|