CREEP RUPTURE OF A SILICON CARBIDE REINFORCED ALUMINUM COMPOSITE.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)139-146
Journal / PublicationMetallurgical transactions. A, Physical metallurgy and materials science
Volume15 A
Issue number1
Publication statusPublished - 1984
Externally publishedYes

Abstract

The microstructure, texture, and whisker orientations in 6061 Al-20 wt pct SiC whisker composites have been examined using transmission electron microscopy and X-ray diffraction. Tension creep tests have also been conducted in the temperature range 505 to 644 K (450 to 700 F). The steady state creep rate depends on temperature and applied stress. The composite fails by coalescence of voids in the matrix which originate at the aluminum-SiC interface. SiC particulate composites are less creep resistant than SiC whisker composites.

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