Texture and residual strain in SiC/Ti-6-2-4-2 titanium matrix composites

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Residual strain and texture variations were measured in two Titanium matrix composites reinforced with Silicon Carbide fibers (Ti/SiC) of similar composition but fabricated by different processing routes. Each composite comprised a Ti-6242 {alpha}/{beta} matrix alloy containing 35% by volume continuous SiC fibers. In one composite, the matrix was produced by a plasma spray (PS) route, and in the other by a wire drawing (WD) process. The PS and WD composites were reinforced with SCS-6 (SiC) and Trimarc (SiC) fibers, respectively. The texture in the titanium matrices differed significantly, from approximately {approx} 1.1x random for the monolithic and composite produced by ... continued below

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30 p.

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Rangaswamy, P.; Bourke, M.A.M.; Von Dreele, R.; Bennett, K.; Roberts, J.A.; Daymond, M. et al. December 31, 1998.

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Description

Residual strain and texture variations were measured in two Titanium matrix composites reinforced with Silicon Carbide fibers (Ti/SiC) of similar composition but fabricated by different processing routes. Each composite comprised a Ti-6242 {alpha}/{beta} matrix alloy containing 35% by volume continuous SiC fibers. In one composite, the matrix was produced by a plasma spray (PS) route, and in the other by a wire drawing (WD) process. The PS and WD composites were reinforced with SCS-6 (SiC) and Trimarc (SiC) fibers, respectively. The texture in the titanium matrices differed significantly, from approximately {approx} 1.1x random for the monolithic and composite produced by PS route to {approx} 17x random in the monolithic and {approx}6x random in the composite produced by the WD route. No significant differences in matrix residual strains between the composites prepared by the two procedures were noted. The Trimarc (WD) fibers recorded higher ({approx}1.3x) compressive strains than the SCS-6 (PS) fibers in all the measured directions. The plane-specific elastic moduli, measured in load tests on the un-reinforced matrices, showed little difference.

Physical Description

30 p.

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OSTI as DE99002268

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  • 1998 Minerals, Metals and Materials Society (TMS) fall meeting, Rosemont, IL (United States), 11-15 Oct 1998

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  • Other: DE99002268
  • Report No.: LA-UR--98-3185
  • Report No.: CONF-981054--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/350859 | External Link
  • Office of Scientific & Technical Information Report Number: 350859
  • Archival Resource Key: ark:/67531/metadc678157

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  • December 31, 1998

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  • July 25, 2015, 2:20 a.m.

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  • May 5, 2016, 7:23 p.m.

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Rangaswamy, P.; Bourke, M.A.M.; Von Dreele, R.; Bennett, K.; Roberts, J.A.; Daymond, M. et al. Texture and residual strain in SiC/Ti-6-2-4-2 titanium matrix composites, report, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc678157/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.