Mechanical and Fatigue Properties of Powder Titanium Strips, Obtained by Asymmetric Rolling
Powder Metallurgy and Metal Ceramics(2017)
摘要
The mechanical properties of titanium powder strips obtained by asymmetric rolling technique are investigated. It is found out that the use of asymmetric rolling during the consolidating and repeated compacting rolling allows obtaining a strip with better mechanical properties than that obtained by conventional technique. The fracture surface of a titanium strip obtained by symmetric rolling has a significant ratio of the interparticle fracture. After asymmetric rolling, the fracture surface is totally dimpled. It is shown that the asymmetric rolling improves the quality of interparticle contact and, consequently, the ductility and fatigue resistance increase significantly.
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关键词
powder titanium strips,asymmetric and symmetric rolling,mechanical properties,fatigue resistance
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