The Effect of Crystallographic Orientation on Compressive Properties of Ta Single Crystals Grown by Electron Beam Melting Methods.

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  • Kaneko Takeshi
    1st Research Center, Technical Research & Development Inst., Japan Defense Agency

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  • 電子線衝撃溶解法によって作製したＴａ単結晶の圧縮効果に及ぼす結晶方位の影響
  • デンシセン ショウゲキ ヨウカイホウ ニ ヨッテ サクセイシタ Ta タンケッ

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Abstract

Systematic studies were carried out on the compressive effects of Ta single crystals grown by electron beam melting methods. Stress-strain curves of various Ta single crystals were obtained in order to clarify the effect of compressive deformation. According to the stress-strain curves and surface observation, the following results were obtained.<BR>It was cleared that the work hardening effect of Ta single crystals, examined by using compression tests, was determined to be, smaller in the order of directions <100>, <111>, and <110>, and also smaller in the order from <111> to <110>, and from <100> to <110>, as it was the the same as the Fe single crystals.

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