Microstructure and mechanical properties of the AZ31 magnesium alloy sheets processed by asymmetric reduction rolling

Ma, Ruixin; Wang, Li; Wang, Y.N.; Zhou, Dayu

doi:10.1016/j.msea.2015.03.093

Cited by 32 publications

(5 citation statements)

References 19 publications

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“…Therefore, the AZ31 alloy sheet processed by Route B presents excellent integrated mechanical properties among the three rolling routes. Table 2 shows tensile properties of some rolling AZ31 alloy in literatures [ 14 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ]. It can be found that the AZ31 alloy sheet processed by Route B also shows excellent integrated tensile properties compared with the reported rolling AZ31 alloys.…”

Section: Resultsmentioning

confidence: 99%

Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets

et al. 2016

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Twin-roll casting AZ31 Mg alloy sheets have been fabricated by normal unidirectional-rolling, head-to-tail rolling, and clock-rolling, respectively. It has been demonstrated that head-to-tail rolling is the most effective to refine the microstructure and weaken the basal texture among the three rolling routes. Excellent integrated tensile properties can be obtained by the head-to-tail rolling. The yield strength, ultimate tensile strength, and plastic elongation are 196 MPa, 301 MPa, and 28.9%, respectively. The strength can benefit from the fine grains (average value of 4.0 μm) of the AZ31 alloy processed by the head-to-tail rolling route, while the excellent plastic elongation is achieved owing to the weakened basal texture besides the fine grains. Results obtained here can be used as a basis for further study of some simple rolling methods, which is critical to the development of Mg alloys with high strength and plasticity.

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Section: Resultsmentioning

confidence: 99%

Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets

et al. 2016

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“…They found that the strength was not affected by rolling temperature. However, the elongation to failure enhanced from 13.6% to 18.5% when the rolling temperature was reduced from 573 K to 473 K. Ma et al [51] also studied AZ31 sheets processed using AR. They found that a large shear stress can be introduced throughout the thickness of sheet.…”

Section: Fig 2 Engineering Stress Vs Engineering Strain Curves Of Amentioning

confidence: 99%

“…[51] The AR technique has also been applied to steel, Ti and silver alloys. The best combination of strength and yield ratio for low-carbon steel can be achieved through a low-level AR deformation and a high cooling rate, which causes a part of the austenite to transform into martensite with fine ferrite grains (~2 m).…”

Section: Fig 3 Engineering Stress Vs Engineering Strain Curves Of Amentioning

confidence: 99%

“…Table 1 summarizes the special rolling techniques and their characteristics respectively. [39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56] Cryorolling Refining grains through suppressing dynamic recovery during deformation. The technique can improve the mechanical properties of Al, Zr, Ti, etc.…”

Section: Fig 24 Illustration Of Ultrathin Foils By Arb and Asymmetricmentioning

confidence: 99%

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Special Rolling Techniques for Improvement of Mechanical Properties of Ultrafine‐Grained Metal Sheets: a Review

Lü

Tieu

et al. 2015

Adv Eng Mater

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Interest in ultrafine-grained (UFG) materials has grown rapidly in past 20 years. This review focuses on the application of special rolling techniques for improvement of the mechanical properties of UFG metal sheets. These techniques include asymmetric rolling, cryorolling, asymmetric cryorolling, cross-accumulative roll bonding, and skin-pass rolling. The techniques also include a combination of processes such as equal channel angular press and subsequent rolling, combined high-pressure torsion and subsequent rolling, as well as combined accumulative roll bonding and subsequent asymmetric rolling. We also discuss the main mechanisms leading to improvement in the ductility of UFG materials related to the special rolling techniques. properties of ultrafine-grained (UFG) metal sheets. These techniques include asymmetric rolling, cryorolling, asymmetric cryorolling, cross-accumulative roll bonding and skin-pass rolling. The techniques also include a combination of processes such as equal channel angular press and subsequent rolling, combined high pressure torsion and subsequent rolling, as well as combined accumulative roll bonding and subsequent asymmetric rolling. We also discuss the main mechanisms leading to improvement in the ductility of UFG materials related to the special rolling techniques.

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“…Many efforts have been devoted to improving the formability of magnesium alloys using methods such as severe plastic deformation (SPD) [75,98,[149][150][151], asymmetric rolling (ASR) [152,153], cold pre-forging [154], and cyclic bending-unbending (CBU) [155]. SPD particularly attracts a lot of attention because of its ability to impart large plastic strain in bulk metallic material without significantly changing workpiece geometry [45].…”

Section: Introductionmentioning

confidence: 99%

High toughness magnesium alloy through severe plastic deformation and short annealing

Fong¹

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This thesis represents a body of work that was achieved with the assistance, guidance and support of several people. I consider it an immense privilege to have worked with them. First of all, I would like to express my sincere gratitude to my supervisor, Prof. Tan Ming Jen for his kind guidance, critique, support and encouragement throughout my PhD study. I am also grateful to my co-supervisor and team leader, Dr Chua Beng Wah for his support, motivation and providing me with the framework and freedom in pursuing my research. It has been interesting working under their supervisions which benefited me not only in my research and also in my personal life. I am greatly thankful for all professional support and help I received from Dr Danno Atsushi in SIMTech. His tireless support at the beginning of and during my research had helped me to shape my research outcome. I am very grateful to have the opportunity to collaborate with Dr

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Microstructure and mechanical properties of the AZ31 magnesium alloy sheets processed by asymmetric reduction rolling

Cited by 32 publications

References 19 publications

Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets

Effect of Rolling Route on Microstructure and Tensile Properties of Twin-Roll Casting AZ31 Mg Alloy Sheets

Special Rolling Techniques for Improvement of Mechanical Properties of Ultrafine‐Grained Metal Sheets: a Review

High toughness magnesium alloy through severe plastic deformation and short annealing

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