Microstructure and mechanical properties of ARB processed Mg-3%Gd alloy

J.Q. Wu; S.  Huang; Y.H. Wang; G.L. Wu; Niels Hansen; Xiaoxu Huang

doi:10.1088/1757-899X/89/1/012052

Microstructure and mechanical properties of ARB processed Mg-3%Gd alloy

J.Q. Wu, S. Huang, Y.H. Wang, G.L. Wu, Niels Hansen, Xiaoxu Huang

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Abstract

Mg alloys have various advantages. However, the low formability due to the poor ductility of Mg alloys limits their engineering applications. In this study, an Mg-3%Gd alloys was chosen to explore processing approaches for improving its strength and ductility combination. The alloy was processed by accumulative roll-bonding (ARB) at 400℃ to 4 cycles followed by annealing at various temperatures. The microstructures after annealing were characterized by the electron backscatter diffraction technique and the mechanical properties were measured by a tensile test. It was found that the alloy has a good combination of strength and ductility after 2 cycle ARB processing followed by annealing at 290℃ for 1h. The strength is 2.3 times higher than that of the fully annealed coarse grained alloy, and the elongation is comparable with that of fully annealed coarse grained counterpart. The good mechanical properties were related to the fine-sized heterogeneous microstructures and weakened texture.

Original language	English
Article number	012052
Journal	I O P Conference Series: Materials Science and Engineering
Volume	89
Number of pages	8
ISSN	1757-8981
DOIs	https://doi.org/10.1088/1757-899X/89/1/012052
Publication status	Published - 2015
Event	36th Risø International Symposium on Materials Science - DTU Risø Campus, Roskilde, Denmark Duration: 7 Sept 2015 → 11 Sept 2015 Conference number: 36

Conference

Conference	36th Risø International Symposium on Materials Science
Number	36
Location	DTU Risø Campus
Country/Territory	Denmark
City	Roskilde
Period	07/09/2015 → 11/09/2015

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Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd

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title = "Microstructure and mechanical properties of ARB processed Mg-3%Gd alloy",

abstract = "Mg alloys have various advantages. However, the low formability due to the poor ductility of Mg alloys limits their engineering applications. In this study, an Mg-3%Gd alloys was chosen to explore processing approaches for improving its strength and ductility combination. The alloy was processed by accumulative roll-bonding (ARB) at 400℃ to 4 cycles followed by annealing at various temperatures. The microstructures after annealing were characterized by the electron backscatter diffraction technique and the mechanical properties were measured by a tensile test. It was found that the alloy has a good combination of strength and ductility after 2 cycle ARB processing followed by annealing at 290℃ for 1h. The strength is 2.3 times higher than that of the fully annealed coarse grained alloy, and the elongation is comparable with that of fully annealed coarse grained counterpart. The good mechanical properties were related to the fine-sized heterogeneous microstructures and weakened texture.",

author = "J.Q. Wu and S. Huang and Y.H. Wang and G.L. Wu and Niels Hansen and Xiaoxu Huang",

note = "Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd; 36th Ris{\o} International Symposium on Materials Science ; Conference date: 07-09-2015 Through 11-09-2015",

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T1 - Microstructure and mechanical properties of ARB processed Mg-3%Gd alloy

AU - Wu, J.Q.

AU - Huang, S.

AU - Wang, Y.H.

AU - Wu, G.L.

AU - Hansen, Niels

AU - Huang, Xiaoxu

N1 - Conference code: 36

PY - 2015

Y1 - 2015

N2 - Mg alloys have various advantages. However, the low formability due to the poor ductility of Mg alloys limits their engineering applications. In this study, an Mg-3%Gd alloys was chosen to explore processing approaches for improving its strength and ductility combination. The alloy was processed by accumulative roll-bonding (ARB) at 400℃ to 4 cycles followed by annealing at various temperatures. The microstructures after annealing were characterized by the electron backscatter diffraction technique and the mechanical properties were measured by a tensile test. It was found that the alloy has a good combination of strength and ductility after 2 cycle ARB processing followed by annealing at 290℃ for 1h. The strength is 2.3 times higher than that of the fully annealed coarse grained alloy, and the elongation is comparable with that of fully annealed coarse grained counterpart. The good mechanical properties were related to the fine-sized heterogeneous microstructures and weakened texture.

AB - Mg alloys have various advantages. However, the low formability due to the poor ductility of Mg alloys limits their engineering applications. In this study, an Mg-3%Gd alloys was chosen to explore processing approaches for improving its strength and ductility combination. The alloy was processed by accumulative roll-bonding (ARB) at 400℃ to 4 cycles followed by annealing at various temperatures. The microstructures after annealing were characterized by the electron backscatter diffraction technique and the mechanical properties were measured by a tensile test. It was found that the alloy has a good combination of strength and ductility after 2 cycle ARB processing followed by annealing at 290℃ for 1h. The strength is 2.3 times higher than that of the fully annealed coarse grained alloy, and the elongation is comparable with that of fully annealed coarse grained counterpart. The good mechanical properties were related to the fine-sized heterogeneous microstructures and weakened texture.

U2 - 10.1088/1757-899X/89/1/012052

DO - 10.1088/1757-899X/89/1/012052

M3 - Conference article

SN - 1757-8981

VL - 89

JO - I O P Conference Series: Materials Science and Engineering

JF - I O P Conference Series: Materials Science and Engineering

M1 - 012052

T2 - 36th Risø International Symposium on Materials Science

Y2 - 7 September 2015 through 11 September 2015

ER -

Microstructure and mechanical properties of ARB processed Mg-3%Gd alloy

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