Secondary phases in quasicrystal-reinforced Mg-3.5Zn-0.6Gd Mg alloy

Hua Huang; Yuan Tian; Guangyin Yuan; Chunlin Chen; Zhongchang Wang; Wenjiang Ding; Akihisa Inoue

doi:10.1016/j.matchar.2015.09.005

Secondary phases in quasicrystal-reinforced Mg-3.5Zn-0.6Gd Mg alloy

Hua Huang, Yuan Tian, Guangyin Yuan, Chunlin Chen, Zhongchang Wang, Wenjiang Ding, Akihisa Inoue

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

9 Citations (Scopus)

Abstract

The secondary phases in quasicrystal-reinforced Mg-Zn-Gd alloys are investigated by transmission electron microscopy. The orientation relationships between the dendritic I-phase and the Mg matrix are identified to be [11 2¯ 0]_Mg ∥[2-fold]_I-phase and (0001)_Mg ∥(5-fold)_I-phase. We also find that the dendritic I-phase is brittle along 2-fold, 5-fold, and 3-fold atomic planes during hot extrusion. Moreover, new orientation relations [1¯ 101]_Mg ∥[mirror 2-fold]_I-phase and (0 1¯ 11)_Mg ∥(5-fold)_I-phase are found between nanoscale I-phase and Mg matrix. The findings have implications for our understanding of excellent mechanical properties of the I-phase-strengthened Mg alloys.

Original language	English
Article number	8020
Pages (from-to)	132-136
Number of pages	5
Journal	Materials Characterization
Volume	108
DOIs	https://doi.org/10.1016/j.matchar.2015.09.005
Publication status	Published - 2015 Oct 1

Keywords

Extrusion
Magnesium alloys
Orientation
Precipitation
Quasicrystal

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Secondary phases in quasicrystal-reinforced Mg-3.5Zn-0.6Gd Mg alloy",

abstract = "The secondary phases in quasicrystal-reinforced Mg-Zn-Gd alloys are investigated by transmission electron microscopy. The orientation relationships between the dendritic I-phase and the Mg matrix are identified to be [11 2¯ 0]Mg ∥[2-fold]I-phase and (0001)Mg ∥(5-fold)I-phase. We also find that the dendritic I-phase is brittle along 2-fold, 5-fold, and 3-fold atomic planes during hot extrusion. Moreover, new orientation relations [1¯ 101]Mg ∥[mirror 2-fold]I-phase and (0 1¯ 11)Mg ∥(5-fold)I-phase are found between nanoscale I-phase and Mg matrix. The findings have implications for our understanding of excellent mechanical properties of the I-phase-strengthened Mg alloys.",

keywords = "Extrusion, Magnesium alloys, Orientation, Precipitation, Quasicrystal",

author = "Hua Huang and Yuan Tian and Guangyin Yuan and Chunlin Chen and Zhongchang Wang and Wenjiang Ding and Akihisa Inoue",

year = "2015",

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doi = "10.1016/j.matchar.2015.09.005",

language = "English",

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journal = "Materials Characterization",

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TY - JOUR

T1 - Secondary phases in quasicrystal-reinforced Mg-3.5Zn-0.6Gd Mg alloy

AU - Huang, Hua

AU - Tian, Yuan

AU - Yuan, Guangyin

AU - Chen, Chunlin

AU - Wang, Zhongchang

AU - Ding, Wenjiang

AU - Inoue, Akihisa

PY - 2015/10/1

Y1 - 2015/10/1

N2 - The secondary phases in quasicrystal-reinforced Mg-Zn-Gd alloys are investigated by transmission electron microscopy. The orientation relationships between the dendritic I-phase and the Mg matrix are identified to be [11 2¯ 0]Mg ∥[2-fold]I-phase and (0001)Mg ∥(5-fold)I-phase. We also find that the dendritic I-phase is brittle along 2-fold, 5-fold, and 3-fold atomic planes during hot extrusion. Moreover, new orientation relations [1¯ 101]Mg ∥[mirror 2-fold]I-phase and (0 1¯ 11)Mg ∥(5-fold)I-phase are found between nanoscale I-phase and Mg matrix. The findings have implications for our understanding of excellent mechanical properties of the I-phase-strengthened Mg alloys.

AB - The secondary phases in quasicrystal-reinforced Mg-Zn-Gd alloys are investigated by transmission electron microscopy. The orientation relationships between the dendritic I-phase and the Mg matrix are identified to be [11 2¯ 0]Mg ∥[2-fold]I-phase and (0001)Mg ∥(5-fold)I-phase. We also find that the dendritic I-phase is brittle along 2-fold, 5-fold, and 3-fold atomic planes during hot extrusion. Moreover, new orientation relations [1¯ 101]Mg ∥[mirror 2-fold]I-phase and (0 1¯ 11)Mg ∥(5-fold)I-phase are found between nanoscale I-phase and Mg matrix. The findings have implications for our understanding of excellent mechanical properties of the I-phase-strengthened Mg alloys.

KW - Extrusion

KW - Magnesium alloys

KW - Orientation

KW - Precipitation

KW - Quasicrystal

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JO - Materials Characterization

JF - Materials Characterization

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