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Compression and Oxidation Testing of Co-Al-W-Ta Single-Crystal Specimens Directionally Solidified with a Flat Front

  • 期刊论文

  • 发表日期：

    2024年2月1日

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  • A. I. Epishin,
  • N. V. Petrushin,
  • I. I. Svetlov,
  • E. S. Elyutin,
  • D. S. Lisovenko

摘要

Abstract

Single-crystals of Co8.4Al9.4W1.9Ta alloy with macrosegregation of Al and W were directionally solidified with a flat front. Mini-specimens of different composition were cut at different heights of the single-crystals and tested for compression and oxidation at 900°C. It was found that W increases yield strength while Al retards oxidation.