Influence of Heat Treatment on the Mechanical Properties and Damage Development in a SiC/Ti-15-3 MMC

[+] Author and Article Information
David A. Miller, Dimitris C. Lagoudas

Department of Aerospace Engineering, Center for Mechanics of Composites, Texas A&M University, College Station, TX 77843-3141

J. Eng. Mater. Technol 122(1), 74-79 (May 03, 1999) (6 pages) doi:10.1115/1.482768 History: Received August 05, 1997; Revised May 03, 1999
Copyright © 2000 by ASME
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Prediction of crack density as a function of applied stress for (a) axial crack density, βa and (b) transverse crack density, βtr
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A comparison between the simulated stress/strain response and experimental measurements for (a) 700°C specimen tested at elevated temperature and (b) 450°C specimen tested at room temperature
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Example of representative tested unetched transverse specimens showing cracks emanating from manufacturing flaw and propagating toward fiber
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Unloading transverse elastic modulus versus applied stress for transverse specimens
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Unloading axial elastic modulus versus applied stress for axial specimens
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Microphotograph of a tested 700°C/24 hour heat treatment specimen polished and etched to reveal the microstructure
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Microphotograph of a tested 450°C/24 hour heat treatment specimen polished and etched to reveal the microstructure
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Microphotograph of a tested as-received specimen polished and etched to reveal the microstructure



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