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- Title
High-Current Pulsed Electron Treatment of Hypoeutectic Al-10Si Alloy.
- Authors
Diankun, Lu; Bo, Gao; Guanglin, Zhu; Jike, Lv; Liang, Hu
- Abstract
This paper reports, for the first time, an analysis of the effect of high-current pulsed electron beam (HCPEB) on a hypoeutectic Al-10Si alloy. The Al-10Si alloy was treated by HCPEB in order to see the potential of this fairly recent technique in modifying its wear resistance. For the beam energy density of 3 J/cm2 used in the present work, the melting mode was operative and led to the formation of a 'wavy' surface and the absence of mass primary Si phase and eutectic microstructure. The surface nanocrystallization of primary and eutectic Si phases led to the increase in macro-hardness of the top surface layer, and the wear resistance was drastically improved with a factor of 4.
- Subjects
ELECTRON beams; PULSED lasers; ALUMINUM-silicon alloys; ENERGY density; WEAR resistance
- Publication
High Temperature Materials & Processes, 2017, Vol 36, Issue 1, p97
- ISSN
0334-6455
- Publication type
Article
- DOI
10.1515/htmp-2015-0092