Microstructural evolution and mechanical properties of Mg-Zn-Y-Zr alloy during friction stir processing

被引：75

作者：

Wang, Yaobin ^{[1
]}

Huang, Yongxian ^{[1
]}

Meng, Xiangchen ^{[1
]}

Wan, Long ^{[1
]}

Feng, Jicai ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 696卷

基金：

中国国家自然科学基金;

关键词：

Friction stir processing; Mg alloys; Microstructure; Phase transformation; Mechanical properties; STACKING ORDERED PHASE; MAGNESIUM ALLOY; HEAT-TREATMENT; TEXTURE; DUCTILITY; STRENGTH; BEHAVIOR; PARAMETERS; WELD; CAST;

D O I：

10.1016/j.jallcom.2016.12.068

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here, a Mg-6Zn-1Y-0.5Zr casting was subjected to friction stir processing (FSP). The effect of thermal and mechanical effects on the microstructural evolution and mechanical properties of the casting was studied. FSP resulted in remarkable grain refinement, dissolution and dispersion of intergranular eutectic I-phase (Mg3Zn6Y) networks and strong basal texture. Based on mechanically activated effect of FSP, I-phase transformed to W-phase (Mg3Zn3Y2) and dispersed particles with a core-shell structure formed. The increase of travel speed caused greater grain refinement and higher fraction of dispersed particles, which greatly improved yield strength, ultimate tensile strength, and elongation, 93.1%, 53.0%, and 151.4% higher than that of the cast materials, respectively. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：875 / 883

页数：9

共 34 条

[1] Microstructure evolution and mechanical properties of Mg-Nd-Y alloy in different friction stir processing conditions
Cao, Genghua
Zhang, Datong
Zhang, Wen
Qiu, Cheng
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 636 : 12 - 19
[2] Microstructure, electromagnetic shielding effectiveness and mechanical properties of Mg-Zn-Y-Zr alloys
Chen, Xianhua
Liu, Lizi
Liu, Juan
Pan, Fusheng
[J]. MATERIALS & DESIGN, 2015, 65 : 360 - 369
[3] Experimental and calculated phases in two as-cast and annealed Mg-Zn-Y alloys
Farzadfar, S. A.
Sanjari, M.
Jung, I. -H.
Essadiqi, E.
Yue, S.
[J]. MATERIALS CHARACTERIZATION, 2012, 63 : 9 - 16
[4] Effect of Friction Stir Processing Procedures on Microstructure and Mechanical Properties of Mg-Al-Zn Casting
Feng, A. H.
Xiao, B. L.
Ma, Z. Y.
Chen, R. S.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2009, 40A (10): : 2447 - 2456
[5] Effect of Friction Stir Processing on Microstructure and Mechanical Properties of a Cast-Magnesium-Rare Earth Alloy
Freeney, T. A.
Mishra, R. S.
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (01): : 73 - 84
[6] Influence of processing parameters on thermal field in Mg-Nd-Zn-Zr alloy during friction stir processing
Han, Jingyu
Chen, Juan
Peng, Liming
Zheng, Feiyan
Rong, Wei
Wu, Yujuan
Ding, Wenjiang
[J]. MATERIALS & DESIGN, 2016, 94 : 186 - 194
[7] Solidification pathways and constituent phases of Mg-Zn-Y-Zr alloys
Huang, Z. H.
Liang, S. M.
Chen, R. S.
Han, E. H.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 468 (1-2) : 170 - 178
[8] Enhanced strength and ductility in particulate-reinforced aluminum matrix composites fabricated by flake powder metallurgy
Kai, X. Z.
Li, Z. Q.
Fan, G. L.
Guo, Q.
Xiong, D. B.
Zhang, W. L.
Su, Y. S.
Lu, W. J.
Moon, W. J.
Zhang, D.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 587 : 46 - 53
[9] Physics and phenomenology of strain hardening: the FCC case
Kocks, UF
Mecking, H
[J]. PROGRESS IN MATERIALS SCIENCE, 2003, 48 (03) : 171 - 273
[10] Strength and ductility optimization of Mg-Y-Nd-Zr alloy by microstructural design
Kumar, N.
Choudhuri, D.
Banerjee, R.
Mishra, R. S.
[J]. INTERNATIONAL JOURNAL OF PLASTICITY, 2015, 68 : 77 - 97

← 1 2 3 4 →