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      Effect of aging on microstructure and mechanical properties of ZnAl15Cu1 alloy for wrought applications

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          Abstract

          This study investigates the aging behavior of the recently developed ZnAl15Cu1 alloy and its change of mechanical properties with time. Samples obtained from drawn bars were artificially aged at 80 and 220°C for up to several weeks. The mechanical properties were monitored periodically by hardness testing, until a plateau was reached. The microstructural evolution was studied by optical and scanning electron microscope analyses. Bidimensional X-ray diffraction, transmission electron microscopy and selected area electron diffraction experiments were carried out to study the recrystallization phenomena. Nanoindentation measurements were also performed to determine the hardness of the single constituents. It was demonstrated that the aging causes a drop of about 30% in hardness with time. This reduction was related to the recrystallization of the Zn-rich phase network, occurring at both the studied temperatures.

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          Most cited references 17

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          Milling characteristics of extruded eutectoid Zn–Al alloy

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            Grain Boundary Sliding in a Superplastic Zinc-Aluminum Alloy Processed Using Severe Plastic Deformation

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              The influence of microstructure on surface phenomena: Rolled zinc

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                Author and article information

                Journal
                ijmr
                International Journal of Materials Research
                Carl Hanser Verlag
                1862-5282
                2195-8556
                12 June 2017
                : 108
                : 6
                : 447-454
                Affiliations
                a DIMI – Mechanical and Industrial Engineering Department, University of Brescia, Italy
                b Department of Engineering, University of Rome “Roma TRE”, Italy
                Author notes
                [* ] Correspondence address, Prof. Annalisa Pola, Mechanical and Industrial Engineering Department, University of Brescia, via Branze 38, 25123 Brescia, Italy, E-mail: annalisa.pola@ 123456unibs.it , Tel.: +390303715576, Fax: +390303702448
                Article
                MK111502
                10.3139/146.111502
                © 2017, Carl Hanser Verlag, München
                Page count
                References: 31, Pages: 8
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