Simultaneously enhancing mechanical properties and damping capacity of pure titanium subjected to cryogenic laser peening

In this study, the effects of cryogenic laser peening (CLP) on mechanical properties and damping capacity of pure titanium (Ti) were explored. The experimental results showed that CLP improved the tensile properties and in-depth microhardness of pure Ti, while the compressive residual stress was introduced in the surface layer. Meanwhile, the damping ratio was also increased after CLP process. The synergistic strengthening effect of CLP could effectively accelerate the formation of deformation twin, which contributed to the simultaneous improvement in mechanical properties and damping capacity of pure Ti.

Source: Materials Letters - August 12, 2019 Category: Materials Science Source Type: research