Lattice constant of Al-rich α-phase in equilibrium with different precipitates in Al-Zn alloys

Popović, Stanko and Gržeta, Biserka and Löffler, Hans and Wendrock, Gottfried (1995) Lattice constant of Al-rich α-phase in equilibrium with different precipitates in Al-Zn alloys. Fizika A, 4 (3). pp. 529-538. ISSN 1330-0008

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Abstract

A series of Al-rich Al-Zn alloys were studied by X-ray diffraction at room and elevated temperatures. Using the present results and those cited in literature, the following conclusion can be drawn. The lattice constant, a[α(M/P)], of the matrix, i.e. the phase α(M) in contact with various sorts of precipitates, P, depends on the initial Zn content, x, only in case of fully coherent P, i.e. GP zones. In other cases, where P's are semicoherent or incoherent a^¢R, a^¢ or ß(Zn) phases, a[α(M/P)] is independent of x, but increases with diminishing degree of coherency. The difference in the Zn content between P and α(M) determines the observed changes of the lattice constant.

Item Type: Article
Date: 1995
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Hrvatsko fizikalno društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 21 Mar 2014 20:55
Last Modified: 21 Mar 2014 20:57
URI: http://digre.pmf.unizg.hr/id/eprint/693

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