Microstructure and mechanical properties of extruded Mg-6.5Gd-1.3Nd-0.7Y-0. 3Zn alloy

Xiu Li Hou; Zhan Yi Cao; Lei Lei Zhang; Da Qing Fang; Shi Wei Xu; S. Kamado; Li Min Wang

doi:10.1016/S1003-6326(10)60528-6

Microstructure and mechanical properties of extruded Mg-6.5Gd-1.3Nd-0.7Y-0. 3Zn alloy

Xiu Li Hou, Zhan Yi Cao, Lei Lei Zhang, Da Qing Fang, Shi Wei Xu, S. Kamado, Li Min Wang

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

15 Scopus citations

Abstract

The Mg-6.5Gd-1.3Nd-0.7Y-0.3Zn alloy ingot and sheet were prepared by casting and hot extrusion techniques, and the microstructure, age hardening behavior and mechanical properties were investigated. The results show that the as-cast alloy mainly contains α-Mg solid solution and compounds of Mg ₅RE and Mg₂₄RE₅ (RE=Gd, Y and Nd) phases. The grain size is refined after hot extrusion, and the Mg₅RE and Mg ₂₄RE₅ compounds are broken during the extrusion process. The extruded alloy exhibits remarkable age hardening response and excellent mechanical properties in the peak-aging state. The ultimate tensile strength, yield strength and elongation are 310 MPa, 201 MPa and 5.8 at room temperature, and 173 MPa, 133 MPa and 25.0% at 300 °C, respectively.

Original language	English
Pages (from-to)	s508-s512
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	20
Issue number	SUPPL. 2
DOIs	https://doi.org/10.1016/S1003-6326(10)60528-6
State	Published - Jul 2010
Externally published	Yes

Keywords

age hardening behavior
extrusion
mechanical property
Mg-Gd based alloy
microstructure

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10.1016/S1003-6326(10)60528-6

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title = "Microstructure and mechanical properties of extruded Mg-6.5Gd-1.3Nd-0.7Y-0. 3Zn alloy",

abstract = "The Mg-6.5Gd-1.3Nd-0.7Y-0.3Zn alloy ingot and sheet were prepared by casting and hot extrusion techniques, and the microstructure, age hardening behavior and mechanical properties were investigated. The results show that the as-cast alloy mainly contains α-Mg solid solution and compounds of Mg 5RE and Mg24RE5 (RE=Gd, Y and Nd) phases. The grain size is refined after hot extrusion, and the Mg5RE and Mg 24RE5 compounds are broken during the extrusion process. The extruded alloy exhibits remarkable age hardening response and excellent mechanical properties in the peak-aging state. The ultimate tensile strength, yield strength and elongation are 310 MPa, 201 MPa and 5.8 at room temperature, and 173 MPa, 133 MPa and 25.0% at 300 °C, respectively.",

keywords = "age hardening behavior, extrusion, mechanical property, Mg-Gd based alloy, microstructure",

author = "Hou, {Xiu Li} and Cao, {Zhan Yi} and Zhang, {Lei Lei} and Fang, {Da Qing} and Xu, {Shi Wei} and S. Kamado and Wang, {Li Min}",

year = "2010",

month = jul,

doi = "10.1016/S1003-6326(10)60528-6",

language = "英语",

volume = "20",

pages = "s508--s512",

journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

number = "SUPPL. 2",

}

TY - JOUR

T1 - Microstructure and mechanical properties of extruded Mg-6.5Gd-1.3Nd-0.7Y-0. 3Zn alloy

AU - Hou, Xiu Li

AU - Cao, Zhan Yi

AU - Zhang, Lei Lei

AU - Fang, Da Qing

AU - Xu, Shi Wei

AU - Kamado, S.

AU - Wang, Li Min

PY - 2010/7

Y1 - 2010/7

N2 - The Mg-6.5Gd-1.3Nd-0.7Y-0.3Zn alloy ingot and sheet were prepared by casting and hot extrusion techniques, and the microstructure, age hardening behavior and mechanical properties were investigated. The results show that the as-cast alloy mainly contains α-Mg solid solution and compounds of Mg 5RE and Mg24RE5 (RE=Gd, Y and Nd) phases. The grain size is refined after hot extrusion, and the Mg5RE and Mg 24RE5 compounds are broken during the extrusion process. The extruded alloy exhibits remarkable age hardening response and excellent mechanical properties in the peak-aging state. The ultimate tensile strength, yield strength and elongation are 310 MPa, 201 MPa and 5.8 at room temperature, and 173 MPa, 133 MPa and 25.0% at 300 °C, respectively.

AB - The Mg-6.5Gd-1.3Nd-0.7Y-0.3Zn alloy ingot and sheet were prepared by casting and hot extrusion techniques, and the microstructure, age hardening behavior and mechanical properties were investigated. The results show that the as-cast alloy mainly contains α-Mg solid solution and compounds of Mg 5RE and Mg24RE5 (RE=Gd, Y and Nd) phases. The grain size is refined after hot extrusion, and the Mg5RE and Mg 24RE5 compounds are broken during the extrusion process. The extruded alloy exhibits remarkable age hardening response and excellent mechanical properties in the peak-aging state. The ultimate tensile strength, yield strength and elongation are 310 MPa, 201 MPa and 5.8 at room temperature, and 173 MPa, 133 MPa and 25.0% at 300 °C, respectively.

KW - age hardening behavior

KW - extrusion

KW - mechanical property

KW - Mg-Gd based alloy

KW - microstructure

UR - http://www.scopus.com/inward/record.url?scp=77955542906&partnerID=8YFLogxK

U2 - 10.1016/S1003-6326(10)60528-6

DO - 10.1016/S1003-6326(10)60528-6

M3 - 文章

AN - SCOPUS:77955542906

SN - 1003-6326

VL - 20

SP - s508-s512

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - SUPPL. 2

ER -

Microstructure and mechanical properties of extruded Mg-6.5Gd-1.3Nd-0.7Y-0. 3Zn alloy

Abstract

Keywords

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