Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7969734 | Materials Characterization | 2016 | 5 Pages |
Abstract
The room-temperature tensile properties and thermal stability of Ti834 alloy before and after laser shock peening (LSP) were investigated. Micro-hardness measurement of the untreated and LSP treated specimens were carried out by using a Vickers indenter. The characteristic of microstructures were analyzed by TEM. The results show that both of the strength and ductility decrease for the 600 °C/100 h exposed Ti834 alloy, especially the decrease of ductility is more pronounced than that of strength. The strength and micro-hardness of Ti834 alloy can be improved by LSP, which is attributed to the high-density dislocation and dislocation-cell formation in the near-surface of the specimen. LSP treatment has a detrimental effect on the thermal stability of Ti834 alloy because of the formation of high density defects in the surface of the alloy.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Weiju Jia, Hengzhang Zhao, Quan Hong, Lei Li, Xiaonan Mao,