Residual and working stresses of a TiC/Ni3Al FGM and its structure optimization

The present study of a TiC-ceramic/Ni3Al-intermetallic functionally gradient material disk under heat-resistance test conditions notes that the temperature field across the material changes linearly. A close relationship is seen between residual stress, working stress, and the compositional distribu...

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Bibliographic Details
Published in:Journal of materials science letters 1995-01, Vol.14 (22), p.1620-1623
Main Authors: ZHANG, L. M, YUAN, R. Z, OOMORI, M, HIRAI, T
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Sintered metals and alloys. Pseudo alloys. Cermets
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Summary:The present study of a TiC-ceramic/Ni3Al-intermetallic functionally gradient material disk under heat-resistance test conditions notes that the temperature field across the material changes linearly. A close relationship is seen between residual stress, working stress, and the compositional distribution exponent p. By controlling p, one not only gains the maximum stress relaxation, but also the site of maximum thermal stress, which occurs at the high-strength, metal-rich side. (AIAA)
ISSN:0261-8028
1573-4811
DOI:10.1007/bf00455434