The effect of Equal Channel Angular Pressing process on the microstructure of AZ31 Mg alloy strip shaped specimens

Arab, Seyed Mohammad; Akbarzadeh, Abdolhamid

doi:10.1016/j.jma.2013.07.001

Cited by 48 publications

(18 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It's seen that mean grain size was reduced and distributed more homogenous after 4 passes ECAP which is confirmed by other investigations [12,13,16]. ECAP in route C has given finer grains, because rotation between passes activates more slip systems [17,18] (Fig.…”

Section: Resultssupporting

confidence: 82%

“…The wide distribution of the grain size [16] also represented this bimodal microstructure. Basically, observation indicated that main part of grain refinement and microstructure homogenization took place during two first passes and then descended.…”

Section: Resultsmentioning

confidence: 83%

“…GBS mechanism can decline stress slopes in the coarse grains, so rotational dynamic recrystalization rate decreases in regions near to grain boundaries [20]. Related histograms illustrated normal distribution of the grain [16].…”

Section: Resultsmentioning

confidence: 97%

“…Based on the author's recent study [16], ECAP has carried out on the strip shaped specimens in the route C (180 rotation about the longitudinal axis between passes) and A (no rotation) for 4 passes at 200 C in order to achieve to an appropriate refined grain structure and a suitable texture. Fig.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

On the cold rolling of AZ31 Mg alloy after Equal Channel Angular Pressing

Arab

Akbarzadeh

2014

Journal of Magnesium and Alloys

View full text Add to dashboard Cite

Among the various Severe Plastic Deformation (SPD) processes, Equal Channel Angular Pressing (ECAP) is one of the most applicable one which improves strength and ductility due to grain refinement and suitable texture development. In this study, cold rolling were carried out on the 4 pass ECAPed (in route A and C) strip shaped specimens of AZ31 magnesium alloy to investigate the ECAP effects on the roll-ability. Results showed that reduction in area which can be concerned as an index for roll-ability increased after ECAP. It was also seen that ECAP in route C enhanced roll-ability more than route A.

show abstract

Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

On the cold rolling of AZ31 Mg alloy after Equal Channel Angular Pressing

Arab

Akbarzadeh

2014

Journal of Magnesium and Alloys

View full text Add to dashboard Cite

show abstract

“…The plastic deformation at room temperature can be accommodated by the dislocation slip on the basal plane in Mg alloys 35,36 . The as-received Mg alloy sheets with strong basal texture are unfavorable for basal slip during the plastic deformation.…”

Section: Resultsmentioning

confidence: 99%

Effect of Multi-Pass Bending Deformation on Microstructure Evolution and Mechanical Properties of AZ31 Alloy Sheet

Yang

Dai

et al. 2016

Mat. Res.

View full text Add to dashboard Cite

The rolled AZ31 Mg alloy sheets were processed by multi-pass bending (MPB) process at room temperature and followed by annealing treatment. Mechanical properties of the as-received and MPB sheets in annealed conditions were examined based on the concurrent microstructure and texture evolution. The results show that the room temperature ductility of the Mg sheets was improved by multi-pass bending process. Moreover, the (0002) basal texture was drastically weakened. Enhanced the ambient mechanical properties, such as lower yield strength and larger uniform elongation, were fabricated by MPB path due to the weak basal texture. The microstructure and mechanical responses were characterized and discussed.

show abstract

Effect of ECAP Processing on Corrosion Behavior and Mechanical Properties of the ZFW MP Magnesium Alloy as a Biodegradable Implant Material

et al. 2018

View full text Add to dashboard Cite

Equal channel angular pressing (ECAP) is used to investigate the influence of microstructural evolution on mechanical properties and corrosion resistance of an extruded Mg alloy (ZFW MP) via route BC at 579 K. The transmission electron microscope (TEM) and the optical microscope (OM) are used to observe the microstructure. Tensile testing and hardness measurement are used to investigate the mechanical properties at room temperature, and electrochemical impedance spectroscopy (EIS) and potentiodynamic measurements are used to examine the corrosion properties in Hank's solution at 37 °C. The ECAPed samples show the enhanced mechanical properties as compared with the extruded sample. The ECAPed ZFW MP alloy possesses a homogeneous microstructure due to dynamic recrystallization (DRX), as indicated by the resulting microstructures. However, the electrochemical measurements show that a reduction in the corrosion resistance is caused by the ECAP processing. A broader grain size distribution and a continuous network of the oxide layers along grain boundaries result in an improvement in the corrosion resistance in the extruded sample as compared with the ECAPed sample. However, better mechanical properties are observed with a further homogeneous microstructure in the ECAPed sample as compared with the extruded counterpart.

show abstract

The effect of Equal Channel Angular Pressing process on the microstructure of AZ31 Mg alloy strip shaped specimens

Cited by 48 publications

References 12 publications

On the cold rolling of AZ31 Mg alloy after Equal Channel Angular Pressing

On the cold rolling of AZ31 Mg alloy after Equal Channel Angular Pressing

Effect of Multi-Pass Bending Deformation on Microstructure Evolution and Mechanical Properties of AZ31 Alloy Sheet

Effect of ECAP Processing on Corrosion Behavior and Mechanical Properties of the ZFW MP Magnesium Alloy as a Biodegradable Implant Material

Contact Info

Product

Resources

About