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Phase Decomposition of Cast Alloy ZnAl11Cu3

  • Y. H. Zhu EMAIL logo , C. F. Yeung and W. B. Lee
Published/Copyright: December 13, 2021
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Abstract

Microstracture and phase transformation of a cast Zn–Albased alloy (ZnAl11Cu3) are studied during ageing using X-ray diffraction and back-scattered scanning electron microscopy techniques. Decomposition of a zinc-rich ηs phase is observed to take place in the way of continuous precipitation. A four-phase transformation, α + ε → T′ + η, occurs during prolonged ageing. It is found that the phases involved in the phase transformation can be distinctly identified by using different atomic contrasts in the back-scattered scanning electron image of precipitates.


Dr. Y H. Zhu IIM, UNAM Apartado Postal 70-360, Mexico D.F 04510, Mexico Fax:+525616 1371

  1. The authors would like to express their thanks to M. N. Yeung, L. Ba-nos, A. Caballero and P. S. L. Chan for their assistance in the experimental work, and also to The Research Committee of The Hong Kong Polytechnic University (Project No. GYY11) and DGAPA de UNAM (Project No. IN503797) for their financial supports.

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Received: 2000-10-09
Published Online: 2021-12-13

© 2001 Carl Hanser Verlag, München

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