SYMPOSIA PAPER Published: 01 January 2000
STP15266S

On the Significance of Environment in Thermal Fatigue of a Unidirectional SCS-6/Ti-24Al-11Nb Metal Matrix Composite

Source

Thermal Fatigue tests of a Ti-24Al-11Nb matrix composite unidirectionally reinforced with SiC fiber, SCS-6/Ti-24Al-11Nb, have been carried out without external load in air and in vacuum, under various thermal cycling conditions. The following characteristics of the material subjected to thermal fatigue and isothermal exposure were investigated: (i) crack nucleation and the change in density with thermal cycling; (ii) change of the fiber/matrix interface morphology by means of Electron Probe Micro Analyzer and Scanning Electron Microscope; (iii) change of the interfacial shear strength by fiber push-out tests, and (iv) effect of environment on the properties from (i) to (iii). Methodologies are also proposed for the characterization of damage due to thermal fatigue.

Author Information

Okazaki, M
The University of Tokyo, Tokyo, JAPAN
Nakatani, H
Gifu Technical Institute, Kawasaki Heavy Industries Ltd., Gifu, JAPAN
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E08
Pages: 279–295
DOI: 10.1520/STP15266S
ISBN-EB: 978-0-8031-5423-0
ISBN-13: 978-0-8031-2853-8