Effect of vacuum plasma surface treatment on the titanium alloy resistance to static and cyclic loading

We present the results of the experimental investigations on the static and cyclic strength of titanium alloy VT20 with a TiN vacuum plasma coating. This coating has been found to increase the static strength characteristics and to reduce the plasticity characteristics. Under conditions of low-cycle loading, the coating application results in the improvement in the cyclic strength characteristics in quasistatic fracture and in their deterioration in fatigue fracture. __________ Translated from Problemy Prochnosti, No. 1, pp. 100–106, January–February, 2007.