The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy

Hua Huang; Hidemi Kato; Chunlin Chen; Zhongchang Wang; Guangyin Yuan

doi:10.1016/j.matlet.2012.04.018

The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy

Hua Huang
, Hidemi Kato
, Chunlin Chen
, Zhongchang Wang
, Guangyin Yuan^*

^*Corresponding author for this work

Shanghai Jiao Tong University
Tohoku University

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

56 Scopus citations

Abstract

The Mg-3.5Zn-0.6Gd (at. %) alloy was prepared and homogenized at 673 K for 8 h, and then extruded at 523 K with an extrusion ratio of 9:1. The microstructure and mechanical properties of the extruded alloy have been investigated. Icosahedral quasicrystalline phase (I-phase) existed in extruded Mg-Zn-Gd-based alloys in two morphologies: (1) micron-scale I-phase formed in the solidification, (2) nano-scale ellipsoid-shape I-phase particles precipitated in the extrusion process. A definite orientation relationship and good atomic match between I-phase and α-Mg matrix were directly observed by conventional and high-resolution transmission electron microscopy (HRTEM), which contribute to the high tensile strength of 308 MPa and the large plasticity of 16.4%.

Original language	English
Pages (from-to)	281-283
Number of pages	3
Journal	Materials Letters
Volume	79
DOIs	https://doi.org/10.1016/j.matlet.2012.04.018
State	Published - 15 Jul 2012
Externally published	Yes

Keywords

Interface
Mechanical properties
Microstructure
Nano-scale
Quasicrystal

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10.1016/j.matlet.2012.04.018

Cite this

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title = "The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy",

abstract = "The Mg-3.5Zn-0.6Gd (at. \%) alloy was prepared and homogenized at 673 K for 8 h, and then extruded at 523 K with an extrusion ratio of 9:1. The microstructure and mechanical properties of the extruded alloy have been investigated. Icosahedral quasicrystalline phase (I-phase) existed in extruded Mg-Zn-Gd-based alloys in two morphologies: (1) micron-scale I-phase formed in the solidification, (2) nano-scale ellipsoid-shape I-phase particles precipitated in the extrusion process. A definite orientation relationship and good atomic match between I-phase and α-Mg matrix were directly observed by conventional and high-resolution transmission electron microscopy (HRTEM), which contribute to the high tensile strength of 308 MPa and the large plasticity of 16.4\%.",

keywords = "Interface, Mechanical properties, Microstructure, Nano-scale, Quasicrystal",

author = "Hua Huang and Hidemi Kato and Chunlin Chen and Zhongchang Wang and Guangyin Yuan",

year = "2012",

month = jul,

day = "15",

doi = "10.1016/j.matlet.2012.04.018",

language = "英语",

volume = "79",

pages = "281--283",

journal = "Materials Letters",

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TY - JOUR

T1 - The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy

AU - Huang, Hua

AU - Kato, Hidemi

AU - Chen, Chunlin

AU - Wang, Zhongchang

AU - Yuan, Guangyin

PY - 2012/7/15

Y1 - 2012/7/15

N2 - The Mg-3.5Zn-0.6Gd (at. %) alloy was prepared and homogenized at 673 K for 8 h, and then extruded at 523 K with an extrusion ratio of 9:1. The microstructure and mechanical properties of the extruded alloy have been investigated. Icosahedral quasicrystalline phase (I-phase) existed in extruded Mg-Zn-Gd-based alloys in two morphologies: (1) micron-scale I-phase formed in the solidification, (2) nano-scale ellipsoid-shape I-phase particles precipitated in the extrusion process. A definite orientation relationship and good atomic match between I-phase and α-Mg matrix were directly observed by conventional and high-resolution transmission electron microscopy (HRTEM), which contribute to the high tensile strength of 308 MPa and the large plasticity of 16.4%.

AB - The Mg-3.5Zn-0.6Gd (at. %) alloy was prepared and homogenized at 673 K for 8 h, and then extruded at 523 K with an extrusion ratio of 9:1. The microstructure and mechanical properties of the extruded alloy have been investigated. Icosahedral quasicrystalline phase (I-phase) existed in extruded Mg-Zn-Gd-based alloys in two morphologies: (1) micron-scale I-phase formed in the solidification, (2) nano-scale ellipsoid-shape I-phase particles precipitated in the extrusion process. A definite orientation relationship and good atomic match between I-phase and α-Mg matrix were directly observed by conventional and high-resolution transmission electron microscopy (HRTEM), which contribute to the high tensile strength of 308 MPa and the large plasticity of 16.4%.

KW - Interface

KW - Mechanical properties

KW - Microstructure

KW - Nano-scale

KW - Quasicrystal

UR - https://www.scopus.com/pages/publications/84861617646

U2 - 10.1016/j.matlet.2012.04.018

DO - 10.1016/j.matlet.2012.04.018

M3 - 文章

AN - SCOPUS:84861617646

SN - 0167-577X

VL - 79

SP - 281

EP - 283

JO - Materials Letters

JF - Materials Letters

ER -

The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy

Abstract

Keywords

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