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

被引：16

作者：

Huang, Hua ^{[1
,2
,3
]}

Tian, Yuan ^{[1
]}

Yuan, Guangyin ^{[1
,2
]}

Chen, Chunlin ^{[3
]}

Wang, Zhongchang ^{[3
]}

Ding, Wenjiang ^{[1
,2
]}

Inoue, Akihisa ^{[4
,5
]}

机构：

[1] Shanghai Jiao Tong Univ, Natl Engn Res Ctr Light Alloy Net Forming, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composite, Shanghai 200240, Peoples R China

[3] Tohoku Univ, Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[4] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

[5] Kings Abudulaziz Univ, Dept Phys, Jeddah 21589, Saudi Arabia

来源：

MATERIALS CHARACTERIZATION | 2015年 / 108卷

关键词：

Magnesium alloys; Quasictystal; Extrusion; Precipitation; Orientation; ZN-Y ALLOYS; MECHANICAL-PROPERTIES; ICOSAHEDRAL PHASE; HIGH-STRENGTH; DEFORMATION-BEHAVIOR; MAGNESIUM ALLOYS; LAVES PHASES; RE ALLOYS; GD ALLOY; MICROSTRUCTURE;

D O I：

10.1016/j.matchar.2015.09.005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 [1 1 (2) over bar 0](Mg)parallel to[2-fold](I-phase) and (0001)(Mg)parallel to(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) over bar 101](Mg)parallel to[mirror 2-fold](I-phase) and (0 (1) over bar 1 1)(Mg)parallel to(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. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：132 / 136

页数：5

共 36 条

[1] Quasicrystals as cluster aggregates [J].

Abe, E ;

Yan, YF ;

Pennycook, SJ .

NATURE MATERIALS, 2004, 3 (11) :759-767

[2] Deformation behavior of Mg-Zn-Y alloys reinforced by icosahedral quasicrystalline particles [J].

Bae, DH ;

Kim, SH ;

Kim, DH ;

Kim, WT .

ACTA MATERIALIA, 2002, 50 (09) :2343-2356

[3] Microstructural evolution and the role of interfaces in Mg-Zn-Y alloys with high strength and formability [J].

Chang, H. J. ;

Lee, J. Y. ;

Kim, D. H. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (31)

[4]

Goldman AI, 2013, NAT MATER, V12, P714, DOI [10.1038/NMAT3672, 10.1038/nmat3672]

[5] Formation mechanism of quasicrystals at the nanoscale during hot compression of Mg alloys [J].

Huang, Hua ;

Tian, Yuan ;

Yuan, Guangyin ;

Chen, Chunlin ;

Ding, Wenjiang ;

Wang, Zhongchang .

SCRIPTA MATERIALIA, 2014, 78-79 :61-64

[6] Effect of pretreatment and annealing on microstructure and mechanical properties of Mg-1.5Zn-0.25Gd (at%) alloys reinforced with quasicrystal [J].

Huang, Hua ;

Chen, Chunlin ;

Wang, Zhongchang ;

Li, Yunping ;

Yuan, Guangyin .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 581 :73-82

[7] Microstructure and mechanical properties of as-cast and solution-treated Mg-Zn-Gd-based alloys reinforced with quasicrystals [J].

Huang, Hua ;

Yuan, Guangyin ;

Tong, Jian ;

Ding, Wenjiang .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2013, 104 (04) :380-385

[8] The effect of nanoquasicrystals on mechanical properties of as-extruded Mg-Zn-Gd alloy [J].

Huang, Hua ;

Kato, Hidemi ;

Chen, Chunlin ;

Wang, Zhongchang ;

Yuan, Guangyin .

MATERIALS LETTERS, 2012, 79 :281-283

[9] Atomic motion in Mg-3Al-1Zn during twinning deformation [J].

Jiang, Shan ;

Liu, Tianmo ;

Lu, Liwei ;

Zeng, Wen ;

Wang, Zhongchang .

SCRIPTA MATERIALIA, 2010, 62 (08) :556-559

[10] Precipitates in a Mg-Zn-Y alloy reinforced by an icosahedral quasicrystalline phase [J].

Kim, IJ ;

Bae, DH ;

Kim, DH .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 359 (1-2) :313-318

← 1 2 3 4 →