Comparison of low cycle fatigue performance of several [0] Sigma fibre reinforced titanium matrix composites
The low cycle fatigue behaviour of four SiC fibre reinforced titanium matrix composites (TMCs) is examined at temperatures relevant to gas-turbine compressor components. It is found that, in the high cyclic stress/short life regime, the fatigue performance of the four TMCs is similar at each tempera...
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Veröffentlicht in: | International journal of fatigue 2001-11, Vol.23 (10), p.851-856 |
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creator | Thomas, M.P Howard, G Pather, R Brown, M.R Tranter, P.H |
description | The low cycle fatigue behaviour of four SiC fibre reinforced titanium matrix composites (TMCs) is examined at temperatures relevant to gas-turbine compressor components. It is found that, in the high cyclic stress/short life regime, the fatigue performance of the four TMCs is similar at each temperature. At lower stresses, however, more relevant to the gas-turbine compressor application, fatigue lives of Ti-6-4/SM1240, Timetal 834/SM1140+ and Timetal 834/SM1240 TMC all become significantly inferior to those of Ti-6-4/SM1140+ at temperatures of 450°C and above. This inferiority is attributed to intergranular embrittlement of the Timetal 834 matrix, the high creep resistance of the Timetal 834 matrix and due to an as yet unexplained weakening of the SM1240 fibre. |
doi_str_mv | 10.1016/S0142-1123(01)00056-1 |
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It is found that, in the high cyclic stress/short life regime, the fatigue performance of the four TMCs is similar at each temperature. At lower stresses, however, more relevant to the gas-turbine compressor application, fatigue lives of Ti-6-4/SM1240, Timetal 834/SM1140+ and Timetal 834/SM1240 TMC all become significantly inferior to those of Ti-6-4/SM1140+ at temperatures of 450°C and above. This inferiority is attributed to intergranular embrittlement of the Timetal 834 matrix, the high creep resistance of the Timetal 834 matrix and due to an as yet unexplained weakening of the SM1240 fibre.</description><identifier>ISSN: 0142-1123</identifier><identifier>EISSN: 1879-3452</identifier><identifier>DOI: 10.1016/S0142-1123(01)00056-1</identifier><identifier>CODEN: IJFADB</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Exact sciences and technology ; Fatigue ; Fibres ; Low cycle fatigue ; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology ; Metals. 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It is found that, in the high cyclic stress/short life regime, the fatigue performance of the four TMCs is similar at each temperature. At lower stresses, however, more relevant to the gas-turbine compressor application, fatigue lives of Ti-6-4/SM1240, Timetal 834/SM1140+ and Timetal 834/SM1240 TMC all become significantly inferior to those of Ti-6-4/SM1140+ at temperatures of 450°C and above. This inferiority is attributed to intergranular embrittlement of the Timetal 834 matrix, the high creep resistance of the Timetal 834 matrix and due to an as yet unexplained weakening of the SM1240 fibre.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Fatigue</subject><subject>Fibres</subject><subject>Low cycle fatigue</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. 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Rheology. Fracture mechanics. Tribology</topic><topic>Metals. Metallurgy</topic><topic>Titanium composites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thomas, M.P</creatorcontrib><creatorcontrib>Howard, G</creatorcontrib><creatorcontrib>Pather, R</creatorcontrib><creatorcontrib>Brown, M.R</creatorcontrib><creatorcontrib>Tranter, P.H</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>International journal of fatigue</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thomas, M.P</au><au>Howard, G</au><au>Pather, R</au><au>Brown, M.R</au><au>Tranter, P.H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of low cycle fatigue performance of several [0] Sigma fibre reinforced titanium matrix composites</atitle><jtitle>International journal of fatigue</jtitle><date>2001-11-01</date><risdate>2001</risdate><volume>23</volume><issue>10</issue><spage>851</spage><epage>856</epage><pages>851-856</pages><issn>0142-1123</issn><eissn>1879-3452</eissn><coden>IJFADB</coden><abstract>The low cycle fatigue behaviour of four SiC fibre reinforced titanium matrix composites (TMCs) is examined at temperatures relevant to gas-turbine compressor components. It is found that, in the high cyclic stress/short life regime, the fatigue performance of the four TMCs is similar at each temperature. At lower stresses, however, more relevant to the gas-turbine compressor application, fatigue lives of Ti-6-4/SM1240, Timetal 834/SM1140+ and Timetal 834/SM1240 TMC all become significantly inferior to those of Ti-6-4/SM1140+ at temperatures of 450°C and above. This inferiority is attributed to intergranular embrittlement of the Timetal 834 matrix, the high creep resistance of the Timetal 834 matrix and due to an as yet unexplained weakening of the SM1240 fibre.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0142-1123(01)00056-1</doi><tpages>6</tpages></addata></record> |
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subjects | Applied sciences Exact sciences and technology Fatigue Fibres Low cycle fatigue Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Titanium composites |
title | Comparison of low cycle fatigue performance of several [0] Sigma fibre reinforced titanium matrix composites |
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