Rapid Nitriding of Titanium Alloy with Fine Grains at Room Temperature

Multifunctional surfaces are required to design safe engineering products for human lives. Heating in a nitrogen atmosphere (nitriding) improves the tribological properties but reduces strength of titanium (Ti) alloys owing grain coarsening. A rapid nitriding method Ti forms nitrided layer on surface alloy by bombarding with commercially pure fine particles phase at room temperature within short period. Furthermore, grains formed because impact particles. These results reveal that this room-temperature resolves trade-off between formation and suppression coarsening alloys.