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

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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 languageEnglish
Pages1-12
Number of pages12
Publication statusPublished - 29 Apr 2016
EventThe 19th International ESAFORM Conference on Material Forming: ESAFORM 2016 - Nantes Congress Center, Nantes, France
Duration: 27 Apr 201629 Apr 2016
http://esaform19.ec-nantes.fr

Conference

ConferenceThe 19th International ESAFORM Conference on Material Forming
CountryFrance
CityNantes
Period27/04/1629/04/16
Internet address

Keywords

  • incremental equal channel angular pressing
  • severe plastic deformation
  • ultrafine grain material

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  • Cite this

    Salamati, M., Qarni, M. J., Tamimi, S., & Rosochowski, A. (2016). Effect of channel angle on the material flow and hardness distribution during incremental ECAP of Al-1050 billets. 1-12. Paper presented at The 19th International ESAFORM Conference on Material Forming, Nantes, France.