The influences of rare earth content on the microstructure and mechanical properties of Mg-7Zn-5Al alloy

Wenlong Xiao; Yusen Shen; Lidong Wang; Yaoming Wu; Zhanyi Cao; Shusheng Jia; Limin Wang

doi:10.1016/j.matdes.2010.01.046

The influences of rare earth content on the microstructure and mechanical properties of Mg-7Zn-5Al alloy

Wenlong Xiao
, Yusen Shen
, Lidong Wang^*
, Yaoming Wu
, Zhanyi Cao
, Shusheng Jia
, Limin Wang^*

^*Corresponding author for this work

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

37 Scopus citations

Abstract

The influences of rare earth (RE) on the microstructure and mechanical properties of Mg-7Zn-5Al alloy were studied. The results indicate that both the dendrite and grain size of the alloy can be refined by low RE addition. The Al₂REZn₂ phase will be formed with increasing the RE content, however the high RE addition results in the grain coarsening in the alloy due to the decrease of the contribution of Al and Zn solutes on the grain refinement. The strengthening and weakening mechanisms caused by RE addition only lead to the obviously improve on the room temperature ultimate tensile strength. The mechanical properties of the studied alloys can be improved by aging treatment, and the aged Mg-7Zn-5Al-2RE alloy exhibits optimal mechanical properties at room temperature.

Original language	English
Pages (from-to)	3542-3549
Number of pages	8
Journal	Materials and Design
Volume	31
Issue number	7
DOIs	https://doi.org/10.1016/j.matdes.2010.01.046
State	Published - Aug 2010
Externally published	Yes

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title = "The influences of rare earth content on the microstructure and mechanical properties of Mg-7Zn-5Al alloy",

abstract = "The influences of rare earth (RE) on the microstructure and mechanical properties of Mg-7Zn-5Al alloy were studied. The results indicate that both the dendrite and grain size of the alloy can be refined by low RE addition. The Al2REZn2 phase will be formed with increasing the RE content, however the high RE addition results in the grain coarsening in the alloy due to the decrease of the contribution of Al and Zn solutes on the grain refinement. The strengthening and weakening mechanisms caused by RE addition only lead to the obviously improve on the room temperature ultimate tensile strength. The mechanical properties of the studied alloys can be improved by aging treatment, and the aged Mg-7Zn-5Al-2RE alloy exhibits optimal mechanical properties at room temperature.",

author = "Wenlong Xiao and Yusen Shen and Lidong Wang and Yaoming Wu and Zhanyi Cao and Shusheng Jia and Limin Wang",

year = "2010",

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T1 - The influences of rare earth content on the microstructure and mechanical properties of Mg-7Zn-5Al alloy

AU - Xiao, Wenlong

AU - Shen, Yusen

AU - Wang, Lidong

AU - Wu, Yaoming

AU - Cao, Zhanyi

AU - Jia, Shusheng

AU - Wang, Limin

PY - 2010/8

Y1 - 2010/8

N2 - The influences of rare earth (RE) on the microstructure and mechanical properties of Mg-7Zn-5Al alloy were studied. The results indicate that both the dendrite and grain size of the alloy can be refined by low RE addition. The Al2REZn2 phase will be formed with increasing the RE content, however the high RE addition results in the grain coarsening in the alloy due to the decrease of the contribution of Al and Zn solutes on the grain refinement. The strengthening and weakening mechanisms caused by RE addition only lead to the obviously improve on the room temperature ultimate tensile strength. The mechanical properties of the studied alloys can be improved by aging treatment, and the aged Mg-7Zn-5Al-2RE alloy exhibits optimal mechanical properties at room temperature.

AB - The influences of rare earth (RE) on the microstructure and mechanical properties of Mg-7Zn-5Al alloy were studied. The results indicate that both the dendrite and grain size of the alloy can be refined by low RE addition. The Al2REZn2 phase will be formed with increasing the RE content, however the high RE addition results in the grain coarsening in the alloy due to the decrease of the contribution of Al and Zn solutes on the grain refinement. The strengthening and weakening mechanisms caused by RE addition only lead to the obviously improve on the room temperature ultimate tensile strength. The mechanical properties of the studied alloys can be improved by aging treatment, and the aged Mg-7Zn-5Al-2RE alloy exhibits optimal mechanical properties at room temperature.

UR - https://www.scopus.com/pages/publications/77952742338

U2 - 10.1016/j.matdes.2010.01.046

DO - 10.1016/j.matdes.2010.01.046

M3 - 文章

AN - SCOPUS:77952742338

SN - 0264-1275

VL - 31

SP - 3542

EP - 3549

JO - Materials and Design

JF - Materials and Design

IS - 7

ER -

The influences of rare earth content on the microstructure and mechanical properties of Mg-7Zn-5Al alloy

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