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Recrystallization of WE43 magnesium alloy processed via cyclic expansion extrusion (CEE)

Publish Year: 1397
Type: Conference paper
Language: English
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Document National Code:

MECCONF01_050

Index date: 27 October 2018

Recrystallization of WE43 magnesium alloy processed via cyclic expansion extrusion (CEE) abstract

In this paper, cyclic expansion extrusion (CEE) asa relatively new severe plastic deformation (SPD) process isapplied to a rare earth (RE) containing Mg alloy WE43 and theeffects of processing temperature and the number of passes areinvestigated. Results showed that dynamic recrystallization (DRX)occurred after CEE processing at 400 °C and a bimodal structure withultrafine DRXed grains surrounded the unrecrystallized grains.However, at 330 °C, DRX was retarded due to the existence of rareearth elements. It was concluded that increasing the processingpasses could increase volume fraction of the recrystallizedgrains. Also increasing the temperature results in an increase inelongation.

Recrystallization of WE43 magnesium alloy processed via cyclic expansion extrusion (CEE) Keywords:

Dynamic recrystallization (DRX) , Grain refinement , Severe plastic deformation (SPD)

Recrystallization of WE43 magnesium alloy processed via cyclic expansion extrusion (CEE) authors

M Sadrkhah

master student, college of mechanical engineering, university of Tehran, Iran

Gh Faraji

Ghader Faraji, college of mechanical engineering, university of Tehran, Iran

S Amani

master student, college of mechanical engineering, university of Tehran, Iran