Optimization of the Manufacturing Process of a Titanium Aluminide Metal Matrix Composite Using a Viscoplastic Constitutive Theory

[+] Author and Article Information
J. A. Sherwood, H. M. Quimby

Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA 01854

J. Eng. Mater. Technol 118(2), 235-240 (Apr 01, 1996) (6 pages) doi:10.1115/1.2804894 History: Received December 08, 1992; Revised July 16, 1995; Online November 27, 2007


The thermomechanical behavior of a titanium aluminide metal matrix composite reinforced with silicon carbide fibers is computationally investigated to determine an optimum manufacturing process. The investigations are completed using the Ramaswamy-Stouffer constitutive model and the finite element method. Hold times at a given temperature were used in an effort to allow the residuals stresses to relax. However, the subsequent temperature changes erased the benefit of such holds. Thermomechanical cycling was determined to be the optimum method for reducing the residual stress field after cooldown from consolidation.

Copyright © 1996 by The American Society of Mechanical Engineers
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