Metallurgical Transactions A

, 6:1541

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

  • M. Hida
  • S. Weissmann
Alloy Phases and Structure

DOI: 10.1007/BF02641965

Cite this article as:
Hida, M. & Weissmann, S. MTA (1975) 6: 1541. doi:10.1007/BF02641965


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 εF = 4 pct at room temperature, and σ0.2 = 900 MN/m2, εF= 12 pct at 600°C. A two-step aging program resulted in σ0.2 = 1,350 MN/m2, εF = 5 pct at room temperature; σ0.2 = 800 MN/m2, εF = 20 pct at 600°C.

Copyright information

© American Society for Metals, The Melallurgical Society of AIME 1975

Authors and Affiliations

  • M. Hida
    • 1
  • S. Weissmann
    • 2
  1. 1.School of EngineeringOkayama UniversityOkayamaJapan
  2. 2.Materials Research Laboratory, College of EngineeringRutgers UniversityNew Brunswick