THE MECHANICAL AND FATIGUE PROPERTIES OF POWDERED TITANIUM STRIPS, OBTAINED BY ASSYMETRICAL ROLLING

       

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2017, #01/02
http://www.materials.kiev.ua/article/2310

Abstract

The mechanical properties of titanium powder strips obtained by asymmetrical rolling technique are investigated. It is found out that the use of asymmetrical rolling during the consolidating and repeated rolling allows obtaining a strip with better mechanical properties than that obtained by conventional technique. The fracture surface of titanium strip obtained by symmetrical rolling has a significant ratio of the interparticle fracture. After asymmetrical rolling, the fracture surface is totally dimpled. It is shown that the asymmetrical rolling improves the interparticle contact and, consequently, the ductility and fatigue resistance increase significantly.


ASYMMETRIC ROLLING, FATIGUE RESISTANCE, MECHANICAL PROPERTIES, POWDERED TITANIUM STRIPS, SYMMETRICAL ROLLING