Effect of channel angle on the material flow and hardness distribution during incremental ECAP of Al-1050 billets

Mohammad Salamati; Muhammad Jawad Qarni; Saeed Tamimi; Andrzej Rosochowski

Effect of channel angle on the material flow and hardness distribution during incremental ECAP of Al-1050 billets

Mohammad Salamati, Muhammad Jawad Qarni, Saeed Tamimi, Andrzej Rosochowski

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Abstract

Incremental equal channel angular pressing (I-ECAP) is an extension of the classical ECAP method used to produce ultrafine grained (UFG) metals. This paper investigates the first pass of I-ECAP performed on AA-1050 billets measuring 10x10x60mm and the effects of processing with two different dies with the channel intersection angle ϕ=90° and ϕ=120°. The forces required to produce billets were examined and compared. Micro hardness measurements were performed to create a hardness distribution contour map and to evaluate the strain distribution. Moreover FE simulations were performed to investigate the plastic strain distribution within the billets. It was found that using the ϕ=90° die results in higher deformation forces and also greater uniformity of strain distribution when compared to billets processed with ϕ=120° die. The experimental results correlated well with the findings of the simulations.

Original language	English
Pages	1-12
Number of pages	12
Publication status	Published - 29 Apr 2016
Event	The 19th International ESAFORM Conference on Material Forming: ESAFORM 2016 - Nantes Congress Center, Nantes, France Duration: 27 Apr 2016 → 29 Apr 2016 http://esaform19.ec-nantes.fr

Conference

Conference	The 19th International ESAFORM Conference on Material Forming
Country/Territory	France
City	Nantes
Period	27/04/16 → 29/04/16
Internet address	http://esaform19.ec-nantes.fr

Keywords

incremental equal channel angular pressing
severe plastic deformation
ultrafine grain material

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Salamati-etal-ESAFORM-2016-Effect-of-shear-angle-on-the-material-flow-and-hardnessAccepted author manuscript, 1.33 MB

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AU - Qarni, Muhammad Jawad

AU - Tamimi, Saeed

AU - Rosochowski, Andrzej

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Effect of channel angle on the material flow and hardness distribution during incremental ECAP of Al-1050 billets

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