Microstructure and mechanical properties of Mg-Gd-Y-Zr alloy processed by equal channel angular pressing

Fan Zhang; Ke Xiang Zhang; Cheng Wen Tan; Xiao Dong Yu; Hong Lei Ma; Fu Chi Wang; Hong Nian Cai

doi:10.1016/S1003-6326(11)60986-2

Microstructure and mechanical properties of Mg-Gd-Y-Zr alloy processed by equal channel angular pressing

Fan Zhang, Ke Xiang Zhang, Cheng Wen Tan^*, Xiao Dong Yu, Hong Lei Ma, Fu Chi Wang, Hong Nian Cai

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

Microstructure evolution and texture development and their effects on mechanical properties of a Mg-Gd-Y-Zr alloy during equal channel angular pressing (ECAP) were investigated. It is found that the microstructure is still inhomogeneous after four passes, and two zones, namely the fine grain zone (FGZ) and the coarse grain zone (CGZ) are formed. The grain refinement occurs mainly by particle-stimulated nucleation (PSN) mechanism, which led to a more random texture after four passes of ECAP. In the ECAP-processed alloy, the strength did not increase while the ductility was enhanced dramatically compared with the as-received condition. The change of ductility of this alloy was discussed in terms of texture and second phase particles.

Original language	English
Pages (from-to)	2140-2146
Number of pages	7
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	21
Issue number	10
DOIs	https://doi.org/10.1016/S1003-6326(11)60986-2
Publication status	Published - Oct 2011

Keywords

Mg-Gd-Y-Zr magnesium alloy
equal channel angular pressing (ECAP)
grain size
mechanical properties
second phase particles
texture

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10.1016/S1003-6326(11)60986-2

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title = "Microstructure and mechanical properties of Mg-Gd-Y-Zr alloy processed by equal channel angular pressing",

abstract = "Microstructure evolution and texture development and their effects on mechanical properties of a Mg-Gd-Y-Zr alloy during equal channel angular pressing (ECAP) were investigated. It is found that the microstructure is still inhomogeneous after four passes, and two zones, namely the fine grain zone (FGZ) and the coarse grain zone (CGZ) are formed. The grain refinement occurs mainly by particle-stimulated nucleation (PSN) mechanism, which led to a more random texture after four passes of ECAP. In the ECAP-processed alloy, the strength did not increase while the ductility was enhanced dramatically compared with the as-received condition. The change of ductility of this alloy was discussed in terms of texture and second phase particles.",

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AU - Zhang, Fan

AU - Zhang, Ke Xiang

AU - Tan, Cheng Wen

AU - Yu, Xiao Dong

AU - Ma, Hong Lei

AU - Wang, Fu Chi

AU - Cai, Hong Nian

PY - 2011/10

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N2 - Microstructure evolution and texture development and their effects on mechanical properties of a Mg-Gd-Y-Zr alloy during equal channel angular pressing (ECAP) were investigated. It is found that the microstructure is still inhomogeneous after four passes, and two zones, namely the fine grain zone (FGZ) and the coarse grain zone (CGZ) are formed. The grain refinement occurs mainly by particle-stimulated nucleation (PSN) mechanism, which led to a more random texture after four passes of ECAP. In the ECAP-processed alloy, the strength did not increase while the ductility was enhanced dramatically compared with the as-received condition. The change of ductility of this alloy was discussed in terms of texture and second phase particles.

AB - Microstructure evolution and texture development and their effects on mechanical properties of a Mg-Gd-Y-Zr alloy during equal channel angular pressing (ECAP) were investigated. It is found that the microstructure is still inhomogeneous after four passes, and two zones, namely the fine grain zone (FGZ) and the coarse grain zone (CGZ) are formed. The grain refinement occurs mainly by particle-stimulated nucleation (PSN) mechanism, which led to a more random texture after four passes of ECAP. In the ECAP-processed alloy, the strength did not increase while the ductility was enhanced dramatically compared with the as-received condition. The change of ductility of this alloy was discussed in terms of texture and second phase particles.

KW - Mg-Gd-Y-Zr magnesium alloy

KW - equal channel angular pressing (ECAP)

KW - grain size

KW - mechanical properties

KW - second phase particles

KW - texture

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Microstructure and mechanical properties of Mg-Gd-Y-Zr alloy processed by equal channel angular pressing

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Keywords

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