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Influence of processing on matrix microstructure and properties of titanium matrix composites

Chernova, Luidmila and Hausmann, Joachim (2007) Influence of processing on matrix microstructure and properties of titanium matrix composites. In: 11th World Conference on Titanium, 2, pp. 1325-1328. Japan Institute of Metals. 11th World Conference on Titanium, 2007-06-03 - 2007-06-07, Kyoto, Japan. ISBN 978-88903-406-6.

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SiC-fibre reinforced titanium matrix composites are marked by exceptional high specific strength and stiffness at temperatures up to 550C. That is why these materials are considered as promising materials for the compressor section of future aeronautic gas turbines. Different processing routes have been established for the production of titanium matrix composites. <BR>SiC-fibre reinforced titanium alloys with highest quality are obtained by the matrix coated fibre technique. The fibres are coated by the matrix alloy and subsequently consolidated by hot isostatic pressing. To accelerate the materials development modelling techniques are applied. However, there is a mismatch between modelling and experimental results, sometimes. One reason may the altered microstructure of the matrix within the composite resulting in wrong assumptions for the matrix properties. In this approach an important parameter is a study of features of microstructure and phase structure of the matrix, finding-out of the mechanism of occurring transformation and definition of their influence on mechanical properties. To take this into account specimens were produced by the same magnetron sputtering and heat treatment procedure usually used for composite production. Microstructure analysis as well as tensile, creep and fatigue tests were conducted on these specimens. The sputtering process leads to a very fine microstructure while heat treatment coarsens it. In general strength and maximum strain decreases by the applied processing compared to forged material in the as delivered state.

Item URL in elib:https://elib.dlr.de/52643/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Influence of processing on matrix microstructure and properties of titanium matrix composites
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:15 July 2007
Journal or Publication Title:11th World Conference on Titanium
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1325-1328
Publisher:Japan Institute of Metals
Keywords:titanium matrix compisite (tmc), magnetron sputtering, microstructure
Event Title:11th World Conference on Titanium
Event Location:Kyoto, Japan
Event Type:international Conference
Event Start Date:3 June 2007
Event End Date:7 June 2007
Organizer:Japan Titanium Society
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Propulsion Systems (old)
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Light Metal Composites
Deposited By: Hausmann, Dr.-Ing. Joachim
Deposited On:13 Jun 2008
Last Modified:24 Apr 2024 19:15

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