Abstract
The effects of laser shock peening (LSP) on the impact wear behavior of Ti-6Al-4V alloys were investigated by a homemade impact wear test rig. The microstructure and mechanical properties of the peened samples were studied. During the impact wear test, the energy absorption, impact force, wear contact time and wear mechanism of all the test samples were investigated in terms of the influence of the impact kinetic energy. The results showed that microhardness, elastic modulus and residual compressive stress of the treated samples were markedly improved. The wear resistances of both treated samples were highly improved after LSP, and a higher pulse energy corresponded to a more obvious effect. Besides, the wear in all test samples involved a combination of abrasive and oxidation wear and fatigue spalling.
| Original language | English |
|---|---|
| Pages (from-to) | 1439-1448 |
| Number of pages | 10 |
| Journal | Transactions of Nonferrous Metals Society of China (English Edition) |
| Volume | 29 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2019 |
| Externally published | Yes |
Keywords
- Ti-6Al-4V alloy
- impact kinetic energy
- impact wear
- laser shock peening
- wear mechanism