Route effects in I-ECAP of AZ31B magnesium alloy

Michal Zbigniew Gzyl, Andrzej Rosochowski, Evgenia Yakushina, Paul Wood, Lech Olejnik

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

An AZ31B wrought magnesium alloy was processed by incremental equal channel
angular pressing (I-ECAP) using routes A and BC. Despite the fact that the measured grain size for both routes was very similar, the mechanical properties were different. Tensile strength was improved using route A comparing to route BC, without ductility loss, while tension-compression anisotropy observed for route A was significantly suppressed when using route BC. Moreover, billet shape evolution resulting from subsequent passes of I-ECAP was studied. Significant distortion after processing using route BC and no occurrence of such effect for route A were observed. Results of a finite element analysis showed that non-uniform strain rate sensitivity might be responsible for different billet shapes. The conclusion is drawn that processing route has a strong influence on the billet shape and mechanical properties when processing magnesium alloys by I-ECAP.
LanguageEnglish
Pages876-884
Number of pages9
JournalKey Engineering Materials
Volume554-557
DOIs
Publication statusPublished - 2013
Event16th Esaform Conference - Aveiro, Portugal
Duration: 22 Apr 201324 Apr 2013

Fingerprint

Magnesium alloys
Processing
Mechanical properties
Ductility
Strain rate
Anisotropy
Tensile strength
Finite element method

Keywords

  • equal channel angular pressing
  • magnesium alloys
  • ultrafine grained metals

Cite this

Gzyl, Michal Zbigniew ; Rosochowski, Andrzej ; Yakushina, Evgenia ; Wood, Paul ; Olejnik, Lech. / Route effects in I-ECAP of AZ31B magnesium alloy. In: Key Engineering Materials. 2013 ; Vol. 554-557. pp. 876-884.
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Route effects in I-ECAP of AZ31B magnesium alloy. / Gzyl, Michal Zbigniew; Rosochowski, Andrzej; Yakushina, Evgenia; Wood, Paul; Olejnik, Lech.

In: Key Engineering Materials, Vol. 554-557, 2013, p. 876-884.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Route effects in I-ECAP of AZ31B magnesium alloy

AU - Gzyl, Michal Zbigniew

AU - Rosochowski, Andrzej

AU - Yakushina, Evgenia

AU - Wood, Paul

AU - Olejnik, Lech

N1 - DOI does not work

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N2 - An AZ31B wrought magnesium alloy was processed by incremental equal channelangular pressing (I-ECAP) using routes A and BC. Despite the fact that the measured grain size for both routes was very similar, the mechanical properties were different. Tensile strength was improved using route A comparing to route BC, without ductility loss, while tension-compression anisotropy observed for route A was significantly suppressed when using route BC. Moreover, billet shape evolution resulting from subsequent passes of I-ECAP was studied. Significant distortion after processing using route BC and no occurrence of such effect for route A were observed. Results of a finite element analysis showed that non-uniform strain rate sensitivity might be responsible for different billet shapes. The conclusion is drawn that processing route has a strong influence on the billet shape and mechanical properties when processing magnesium alloys by I-ECAP.

AB - An AZ31B wrought magnesium alloy was processed by incremental equal channelangular pressing (I-ECAP) using routes A and BC. Despite the fact that the measured grain size for both routes was very similar, the mechanical properties were different. Tensile strength was improved using route A comparing to route BC, without ductility loss, while tension-compression anisotropy observed for route A was significantly suppressed when using route BC. Moreover, billet shape evolution resulting from subsequent passes of I-ECAP was studied. Significant distortion after processing using route BC and no occurrence of such effect for route A were observed. Results of a finite element analysis showed that non-uniform strain rate sensitivity might be responsible for different billet shapes. The conclusion is drawn that processing route has a strong influence on the billet shape and mechanical properties when processing magnesium alloys by I-ECAP.

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KW - ultrafine grained metals

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