Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 28    No. 6    June 2018

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Finite element analysis of stress-strain localization and distribution in Al-4.5Cu-2Mg alloy
Rahul BHANDARI1, Prosanta BISWAS2, Manas Kumar MONDAL2, Durbadal MANDAL2

1. Department of Mechanical Engineering, Birbhum Institute of Engineering and Technology, Suri-731101, India;
2. Department of Metallurgical and Materials Engineering, National Institute of Technology, Durgapur-713209, India

Abstract:Finite element analysis has been carried out to understand the effect of various processing routes and condition on the microscale deformation behavior of Al–4.5Cu–2Mg alloy. The alloy has been developed through four different routes and condition, i.e. conventional gravity casting with and without refiner, rheocasting and SIMA process. The optical microstructures of the alloy have been used to develop representative volume elements (RVEs). Two different boundary conditions have been employed to simulate the deformation behavior of the alloy under uniaxial loading. Finally, the simulated stress-strain behavior of the alloy is compared with the experimental result. It is found that the microstructural morphology has a significant impact on stress and strain distribution and load carrying capacity. The eutectic phase always carries a higher load than the α(Al) phase. The globular α(Al) grains with thinner and uniformly distributed eutectic network provide a better stress and strain distribution. Owing to this, SIMA processed alloy has better stress and strain distribution than other processes. Finally, the simulated yield strength of the alloy is verified by experiment and they have great agreement.

 

Key words: Al-4.5Cu-2Mg alloy; microstructure; α(Al) phase; eutectic phase; finite element analysis; micromechanical response

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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