Effects of calcium and rare-earth elements on the microstructure and tension-compression yield asymmetry of ZEK100 alloy

被引：39

作者：

Kamrani, S. ^{[1
]}

Fleck, C. ^{[1
]}

机构：

[1] Inst Technol Berlin, Dept Mat Engn, D-10623 Berlin, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 618卷

关键词：

Magnesium alloy; Yield asymmetry; Microstructure; Texture; Precipitates; MAGNESIUM ALLOYS; MECHANICAL-PROPERTIES; GRAIN-SIZE; TEXTURE; MG; BEHAVIOR; DEFORMATION; STRONTIUM;

D O I：

10.1016/j.msea.2014.09.023

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Variations of the Mg-Zn-Zr alloy ZK100 were cast and extruded containing rare-earth elements and different amounts of Ca (0.4 and 0.8 wt%). After extrusion and heat treatment, the tensile and compressive mechanical properties of the alloys were evaluated at room temperature. The effects of calcium and rare-earth elements on the microstructure, texture and tension-compression yield asymmetry of the ZEK100-based alloys were studied. The microstructural investigation revealed fine and uniformly distributed Mg-Ca and Mg-RE precipitates throughout the volume of the specimens. A weak texture and a fully recrystallized and homogeneous grain structure were observed in the ZEK100-Ca alloys. The reduced yield asymmetry of the ZEK100-Ca alloys is attributed to the fine grain size, the weak texture, and the small precipitates of these alloy variants. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：238 / 243

页数：6

共 29 条

[21] Nano-ZnO particle addition to monolithic magnesium for enhanced tensile and compressive response [J].

Sankaranarayanan, S. ;

Nayak, U. Pranav ;

Sabat, R. K. ;

Suwas, S. ;

Almajid, A. ;

Gupta, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 615 :211-219

[22] Comparison of the Corrosion Behavior of Coated and Uncoated Magnesium Alloys in an In Vitro Corrosion Environment [J].

Seitz, Jan-Marten ;

Collier, Kelly ;

Wulf, Eric ;

Bormann, Dirk ;

Bach, Friedrich-Wilhelm .

ADVANCED ENGINEERING MATERIALS, 2011, 13 (09) :B313-B323

[23]

Senn J.W., 2008, AGNEW MAG TECHNOL TM, V2008, P153

[24] Effect of microalloying with rare-earth elements on the texture of extruded magnesium-based alloys [J].

Stanford, N. ;

Atwell, D. ;

Beer, A. ;

Davies, C. ;

Barnett, M. R. .

SCRIPTA MATERIALIA, 2008, 59 (07) :772-775

[25] In Vivo Degradation Behavior of the Magnesium Alloy LANd442 in Rabbit Tibiae [J].

Ullmann, Berit ;

Reifenrath, Janin ;

Dziuba, Dina ;

Seitz, Jan-Marten ;

Bormann, Dirk ;

Meyer-Lindenberg, Andrea .

MATERIALS, 2011, 4 (12) :2197-2218

[26] The role of twinning and untwinning in yielding behavior in hot-extruded Mg-Al-Zn alloy [J].

Wang, Y. N. ;

Huang, J. C. .

ACTA MATERIALIA, 2007, 55 (03) :897-905

[27] On tension-compression yield asymmetry in an extruded Mg-3Al-1Zn alloy [J].

Yin, De Liang ;

Wang, Jing Tao ;

Liu, Jin Qiang ;

Zhao, Xiang .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 478 (1-2) :789-795

[28] Enhanced mechanical properties in fine-grained Mg-1.0Zn-0.5Ca alloys prepared by extrusion at different temperatures [J].

Zhang, B. P. ;

Geng, L. ;

Huang, L. J. ;

Zhang, X. X. ;

Dong, C. C. .

SCRIPTA MATERIALIA, 2010, 63 (10) :1024-1027

[29] Effects of calcium on texture and mechanical properties of hot-extruded Mg-Zn-Ca alloys [J].

Zhang, Baoping ;

Wang, Yin ;

Geng, Lin ;

Lu, Chunxiang .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 539 :56-60

← 1 2 3 →