Phase transformations in the Zn-Al eutectoid alloy after quenching from the high temperature triclinic beta phase

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2010.07.014· OSTI ID:22066248

Sandoval-Jimenez, A ^[1]; Negrete, J ^[2]; Torres-Villasenor, G ^[3]

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1. Instituto Nacional de Investigaciones Nucleares, Dpto. de Aceleradores, Carretera Mexico-Toluca S/N, La Marquesa, Ocoyoacac, Mexico, C.P. 52750, ESIME, Unidad Culhuacan, Dpto. Ing. Mecanica, IPN (Mexico)
2. Instituto de Metalurgia, Universidad Autonoma de San Luis Potosi, SLP 78210 (Mexico)
3. Instituto de Investigaciones en Materiales, Universidad Nacional Autonoma de Mexico, Apdo. Postal 70-360, Mexico D.F. 04510 (Mexico)

Ribbons of the Zn-Al eutectoid alloy obtained by melt-spinning, were heat treated at 350 deg. C during 30 min in a free atmosphere furnace, and then quenched in liquid nitrogen. The temperature correspond to {beta} phase zone, which has a triclinic crystalline structure [1, 2]. Some evidence, obtained by X-ray diffraction, show that the structures present in the just quenched material are both close-packed hexagonal ({eta}-phase) and rhombohedral (R-phase). X-ray diffractograms taken in the same ribbons after annealed 500 h at room temperature, show that the R phase its transform to {alpha} and {eta} phases.

• OSTI ID: 22066248
• Journal Information: Materials Characterization, Vol. 61, Issue 11; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANNEALING
HEXAGONAL LATTICES
LIQUIDS
NITROGEN
PHASE STABILITY
PHASE STUDIES
PHASE TRANSFORMATIONS
QUENCHING
TEMPERATURE DEPENDENCE
TRICLINIC LATTICES
TRIGONAL LATTICES
X-RAY DIFFRACTION
ZINC ALLOYS