Shigeo Matsushima1, Kazuhiro Morino2, Kouji Nozawa1 and Kouji Miyake3
1Department of Manufacturing Mechanical Engineering, Faculty of Engineering, Ehime University, Matsuyama
Tension and tensile fatigue tests of annealed and drawn Ta have been performed in vacuum at high temperature. Relations between tensile strength σ B and fatigue strength for the annealed and the drawn Ta have been studied. The results obtained are as follows:
(1) Relation between σ B and testing temperature T in the range of 1073∼2273 K are approximately given by
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