Effect of Addition of Some Grain Refiners to Zinc-Aluminum 22, ZA22, Alloy on its Grain Size, Mechanical Characteristics in the Cast and after Pressing by the Equal Channel Angular Pressing, ECAP

Adnan I.O. Zaid; Jehad A.S. AlKasasbeh; S.M.A. Al-Qawabah

doi:10.4028/www.scientific.net/AMR.1105.172

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1105Effect of Addition of Some Grain Refiners to...

Effect of Addition of Some Grain Refiners to Zinc-Aluminum 22, ZA22, Alloy on its Grain Size, Mechanical Characteristics in the Cast and after Pressing by the Equal Channel Angular Pressing, ECAP

Abstract:

In this paper, the effect of addition of some grain refiners namely: molybdenum, titanium and titanium+boron to zinc-aluminum 22%, ZA22, alloy on its microstructure and mechanical characteristics is investigated in two conditions one in the cast condition and the other after pressing by the equal channel angular pressing, ECAP. Recently the ECAP process has been used to produce severe plastic deformation. It was found that addition of any of these elements to ZA22 alloy resulted in grain refinement of its structure both in the cast and after pressing by the ECAP conditions, being more pronounced after pressing by ECAP. The maximum decrease was %. Furthermore, it resulted in enhancement of its mechanical strength at, indicating softening of the alloy. Regarding the effect on its hardness, it decreased by th addition of either Mo or Ti+B. at any rate of Mo addition.

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Periodical:

Advanced Materials Research (Volume 1105)

Pages:

172-177

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1105.172

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Online since:

May 2015

Authors:

Adnan I.O. Zaid, Jehad A.S. AlKasasbeh, S.M.A. Al-Qawabah

Keywords:

Equal Channel Angular Pressing, Grain Refiner, Mechanical Behavior, Micro-Hardness, Microstructure, Molybdenum, Titanium, Titanium+Boron, ZA22, Zinc-Aluminum Alloy

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