Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy

Jie Yang; Wenlong Xiao; Lidong Wang; Yaoming Wu; Limin Wang; Hongjie Zhang

doi:10.1016/j.matchar.2008.03.007

Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy

Jie Yang
, Wenlong Xiao
, Lidong Wang^*
, Yaoming Wu
, Limin Wang^*
, Hongjie Zhang

^*Corresponding author for this work

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

36 Scopus citations

Abstract

Microstructure and mechanical properties of peak-aged Mg-4.5Zn-xGd (x = 0, 0.5, 1.0 and 1.5 wt.%) alloys have been investigated. The results showed that the grain size of the alloys was refined gradually with increasing Gd. Mg₅Gd and Mg₃Gd₂Zn₃ phases were found in the Gd-containing alloys. The strengths were greatly improved with Gd additions, and the highest strength level was obtained in the Mg-4.5Zn-1.5Gd alloy, in which the ultimate tensile strength and yield strength were 231 MPa and 113 MPa, respectively. Through comparing with the Mg-4.5Zn alloy, the increments of ultimate tensile strength and yield strength were 22 MPa and 56 MPa, respectively. The improved strength was mainly correlated to the grain refining effect, the strengthening effect of the Mg₅Gd and Mg₃Gd₂Zn₃ phases and also the hardening effect of the solutioned Gd atoms.

Original language	English
Pages (from-to)	1667-1674
Number of pages	8
Journal	Materials Characterization
Volume	59
Issue number	11
DOIs	https://doi.org/10.1016/j.matchar.2008.03.007
State	Published - Nov 2008
Externally published	Yes

Keywords

Mechanical properties
Mg-Zn-Gd alloys
Microstructure
Solution treatment

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10.1016/j.matchar.2008.03.007

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@article{539a12c1876543efa0732aeabf4f8bcf,

title = "Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy",

abstract = "Microstructure and mechanical properties of peak-aged Mg-4.5Zn-xGd (x = 0, 0.5, 1.0 and 1.5 wt.\%) alloys have been investigated. The results showed that the grain size of the alloys was refined gradually with increasing Gd. Mg5Gd and Mg3Gd2Zn3 phases were found in the Gd-containing alloys. The strengths were greatly improved with Gd additions, and the highest strength level was obtained in the Mg-4.5Zn-1.5Gd alloy, in which the ultimate tensile strength and yield strength were 231 MPa and 113 MPa, respectively. Through comparing with the Mg-4.5Zn alloy, the increments of ultimate tensile strength and yield strength were 22 MPa and 56 MPa, respectively. The improved strength was mainly correlated to the grain refining effect, the strengthening effect of the Mg5Gd and Mg3Gd2Zn3 phases and also the hardening effect of the solutioned Gd atoms.",

keywords = "Mechanical properties, Mg-Zn-Gd alloys, Microstructure, Solution treatment",

author = "Jie Yang and Wenlong Xiao and Lidong Wang and Yaoming Wu and Limin Wang and Hongjie Zhang",

year = "2008",

month = nov,

doi = "10.1016/j.matchar.2008.03.007",

language = "英语",

volume = "59",

pages = "1667--1674",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier Inc.",

number = "11",

}

TY - JOUR

T1 - Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy

AU - Yang, Jie

AU - Xiao, Wenlong

AU - Wang, Lidong

AU - Wu, Yaoming

AU - Wang, Limin

AU - Zhang, Hongjie

PY - 2008/11

Y1 - 2008/11

N2 - Microstructure and mechanical properties of peak-aged Mg-4.5Zn-xGd (x = 0, 0.5, 1.0 and 1.5 wt.%) alloys have been investigated. The results showed that the grain size of the alloys was refined gradually with increasing Gd. Mg5Gd and Mg3Gd2Zn3 phases were found in the Gd-containing alloys. The strengths were greatly improved with Gd additions, and the highest strength level was obtained in the Mg-4.5Zn-1.5Gd alloy, in which the ultimate tensile strength and yield strength were 231 MPa and 113 MPa, respectively. Through comparing with the Mg-4.5Zn alloy, the increments of ultimate tensile strength and yield strength were 22 MPa and 56 MPa, respectively. The improved strength was mainly correlated to the grain refining effect, the strengthening effect of the Mg5Gd and Mg3Gd2Zn3 phases and also the hardening effect of the solutioned Gd atoms.

AB - Microstructure and mechanical properties of peak-aged Mg-4.5Zn-xGd (x = 0, 0.5, 1.0 and 1.5 wt.%) alloys have been investigated. The results showed that the grain size of the alloys was refined gradually with increasing Gd. Mg5Gd and Mg3Gd2Zn3 phases were found in the Gd-containing alloys. The strengths were greatly improved with Gd additions, and the highest strength level was obtained in the Mg-4.5Zn-1.5Gd alloy, in which the ultimate tensile strength and yield strength were 231 MPa and 113 MPa, respectively. Through comparing with the Mg-4.5Zn alloy, the increments of ultimate tensile strength and yield strength were 22 MPa and 56 MPa, respectively. The improved strength was mainly correlated to the grain refining effect, the strengthening effect of the Mg5Gd and Mg3Gd2Zn3 phases and also the hardening effect of the solutioned Gd atoms.

KW - Mechanical properties

KW - Mg-Zn-Gd alloys

KW - Microstructure

KW - Solution treatment

UR - https://www.scopus.com/pages/publications/51649088660

U2 - 10.1016/j.matchar.2008.03.007

DO - 10.1016/j.matchar.2008.03.007

M3 - 文章

AN - SCOPUS:51649088660

SN - 1044-5803

VL - 59

SP - 1667

EP - 1674

JO - Materials Characterization

JF - Materials Characterization

IS - 11

ER -

Influences of Gd on the microstructure and strength of Mg-4.5Zn alloy

Abstract

Keywords

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