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High-temperature strength and ductility increases of Ti-Mo-Al alloys by step aging

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Abstract

Step-aging programs, based on principles of particle-dislocation interactions, were developed systematically to obtain increases in the high-temperature strength and ductility properties of Ti-7 at. pct Mo-Al alloys. A triple-step aging program applied to Ti-7 Mo-16 Al produced a yield stress σ0.2 = 1,500 MN/m2, elongation to fracture ε F = 4 pct at room temperature, and σ0.2 = 900 MN/m2, ε F = 12 pct at 600°C. A two-step aging program resulted in σ0.2 = 1,350 MN/m2, ε F = 5 pct at room temperature; σ0.2 = 800 MN/m2, ε F = 20 pct at 600°C.

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Authors and Affiliations

  1. School of Engineering, Okayama University, Okayama, Japan

    M. Hida (Assistant Professor)

  2. Materials Research Laboratory, College of Engineering, Rutgers University, 08903, New Brunswick, N.J.

    S. Weissmann (Professor)

Authors
  1. M. Hida
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  2. S. Weissmann
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Formerly Assistant Research Professor, Materials Research Laboratory, Rutgers University

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Hida, M., Weissmann, S. High-temperature strength and ductility increases of Ti-Mo-Al alloys by step aging. Metall Trans A 6, 1541 (1975). https://doi.org/10.1007/BF02641965

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  • DOI: https://doi.org/10.1007/BF02641965

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