Elastic moduli of Al3Zr

The Young's and shear moduli of Al-Al3Zr mixtures containing 5, 10, 15, and 25 percent Al3Zr (by volume) are determined experimentally, and the results are extrapolated to pure Al3Zr. The extrapolation to 100 percent Al3Zr yields a Young's modulus of 196 GPa, compared with 130 and 140 GPa...

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Veröffentlicht in:	Scripta metallurgica 1985-05, Vol.19 (5), p.647-650
Hauptverfasser:	ZEDALIS, M. S, GHATE, M. V, FINE, M. E
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Elasticity, elastic constants Elasticity. Plasticity Exact sciences and technology Materials science Mechanical and acoustical properties of condensed matter Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Mechanical properties of solids Metals, semimetals and alloys Metals. Metallurgy Physics Specific materials
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Beschreibung
Zusammenfassung:	The Young's and shear moduli of Al-Al3Zr mixtures containing 5, 10, 15, and 25 percent Al3Zr (by volume) are determined experimentally, and the results are extrapolated to pure Al3Zr. The extrapolation to 100 percent Al3Zr yields a Young's modulus of 196 GPa, compared with 130 and 140 GPa obtained for Al6Mn and Al3Li (delta-prime), respectively, by similar extrapolation. The calculated specific stiffness, i.e., the ratio of the elastic modulus to the density, of pure Al3Zr is approximately a factor of 1.8 greater than that for Al. It is concluded that Al3Zr is an attractive dispersed phase for Al alloy metal matrix composites.
ISSN:	0036-9748
DOI:	10.1016/0036-9748(85)90354-0