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材料研究学报  2012, Vol. 26 Issue (2): 218-224    
  研究论文 本期目录 | 过刊浏览 |
AZ31B镁合金挤压板材力学性能的各向异性
吴章斌,桂良进,范子杰
清华大学汽车工程系, 汽车安全与节能国家重点实验室 北京 100084
The Mechanical Properties of Extruded AZ31B Magnesium Alloy Sheets
WU Zhangbin, GUI Liangjin, FAN Zijie
Department of Automotive Engineering, Tsinghua University, State Key Laboratory of Automotive Safety and Energy, Beijing 100084
引用本文:

吴章斌 桂良进 范子杰. AZ31B镁合金挤压板材力学性能的各向异性[J]. 材料研究学报, 2012, 26(2): 218-224.
, , . The Mechanical Properties of Extruded AZ31B Magnesium Alloy Sheets[J]. Chin J Mater Res, 2012, 26(2): 218-224.

全文: PDF(1119 KB)  
摘要: 在AZ31B镁合金板材的板面内沿不同方向进行单向拉伸和压缩试验, 研究挤压板材的力学性能。结果表明, 变形AZ31B镁合金板材具有显著的各向异性和拉压非对称性。在板面内, 沿挤压方向拉伸时的屈服应力明显地比沿同方向压缩和沿其他方向拉伸或压缩时的高(约2倍); 沿45o斜向拉伸的屈服应力和抗拉强度较低, 而延伸率最高;这种非对称性主要表现为屈服非对称和塑性流动非对称, 即拉压的屈服应力不相等和拉压应力-应变曲线形状不同, 压缩曲线表现出特殊的``S''型。基于晶体塑性理论, 讨论了引起变形镁合金的各向异性和拉压非对称性力学性能的变形机理。
关键词 金属材料镁合金挤压板材力学性能各向异性拉压非对称性    
Abstract:The mechanical properties of extruded AZ31B magnesium alloy sheets were investigated by conducting tension and compression experiments along with three different directions align in the sheet plane in this paper. The results show that extruded magnesium alloy sheets show high anisotropy and strong tension-compression asymmetry. The in-plane tensile yield stress in the extrusion direction (ED) is much bigger (about 2 times) than that of compression in the same direction and tension or compression in other directions. The tensile yield and ultimate strength in the 45o direction are smaller in some extent, while the elongation is the largest. The tension-compression asymmetry include the difference in tensile and compressive initial yield stresses (yield asymmetry) and plastic flow stresses (flow asymmetry), the compressive hardening curve turns to be unusual S-shape. The deformation mechanism which causes material anisotropy and tension-compression asymmetry was discussed based on the crystal plasticity.
Key wordsmetallic material    extruded magnesium alloy sheet    mechanical property    anisotropy    tension-compression asymmetry
收稿日期: 2011-12-30     
ZTFLH: 

 

 
1 C.Blawert, N.Hort, K.U.Kainer, Automotive applications of magnesium and its alloys, Transactions of the Indian Institute of Metals, 57(4), 397(2004)

2 M.K.Kulekci, Magnesium and its alloys applications in automotive industry, The International Journal of Advanced Manufacturing Technology, 39(9), 851(2008)

3 P.Waurzyniak, Advanced materials in automotive: Newer steels, aluminum, magnesium, and other materials lead to more lightweight, economical vehicles, Manufacturing Engineering, 143(3), 65(2009)

4 LIU Baicheng, XIONG Shoumei, High pressure die casting process of magnesium alloys and its modeling and simulation for automobile industry, Journal of Automotive Safety and Energy, 2(1), 1(2011)

(柳百成, 熊守美, 汽车工业镁合金压铸成形技术及模拟仿真, 汽车安全与节能学报,  2(1), 1(2011))

5 D.A.Kramer, 2010 Minerals Yearbook-Magnesium: Advance Release (US, U.S. Department of the Interior, U.S. Geological Survey, 2011)

6 C.Bettles, M.Gibson, Current wrought magnesium alloys: Strengths and weaknesses, JOM Journal of the Minerals, Metals and Materials Society, 57(5), 46(2005)

7 S.R.Agnew, ¨ O.Duygulu, Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B, International Journal of Plasticity, 21(6), 1161(2005)

8 X.Y.Lou, M.Li, R.K.Boger, S.R.Agnew, R.H.Wagoner, Hardening evolution of AZ31B Mg sheet, International Journal of Plasticity, 23(1), 44(2007)

9 J.Kim, H.Ryou, D.Kim, D.Kim, W.Lee, S.Hong, K.Chung, Constitutive law for AZ31B Mg alloy sheets and finite element simulation for three-point bending, International Journal of Mechanical Sciences, 50(10-11), 1510(2008)

10 M.Lee, R.H.Wagoner, J.K.Lee, K.Chung, H.Y.Kim, Constitutive modeling for anisotropic/asymmetric hardening behavior of magnesium alloy sheets, International Journal of Plasticity, 24(4), 545(2008)

11 A.S.Khan, A.Pandey, T.G.Herold, R.K.Mishra, Mechanical response and texture evolution of AZ31 alloy at large strains for different strain rates and temperatures, International

Journal of Plasticity, 27(5), 688(2011)

12 YU Kun, RUI Shoutai, WANG Richu, PENG Chaoqun, XUE Xinying, Texture and mechanical anisotropy of AZ31 extruded sheets, The Chinese Journal of Nonferrous Metals, 18(12), 2127(2008)

(余 琨, 芮守泰, 王日初, 彭超群, 薛新颖, AZ31镁合金挤压薄板织构及力学各向异性, 中国有色金属学报,  18(12), 2127(2008))

13 Q.Dai, D.Zhang, X.Chen, On the anisotropic deformation of AZ31 Mg alloy under compression, Materials & Design, 32(10), 5004(2011)

14 Y.N.Wang, J.C.Huan, Texture analysis in hexagonal material, Materials Chemistry and Physics, 81(1), 11(2003)

15 Y.Chino, K.Kimura, M.Hakamada, M.Mabuchi, Mechanical anisotropy due to twinning in an extruded AZ31 Mg alloy, Materials Science and Engineering: A, 485(1–2), 311(2008)

16 LI Zhanggang, ZHANG Shihong, J.A. Wert, An experimental study on grain orientation evolution of Mg alloy extruded sheet AZ31B during uniaxial tensile deformation, Journal of Plasticity Engineering, 15(3), 37(2008)

(李章刚, 张士宏, John A. Wert, AZ31B镁合金挤压板材单向拉伸的取向演变研究, 塑性工程学报,  15(3), 37(2008))

17 TANG Weiqin, ZHANG Shaorui, FAN Xiaohui, LI Dayong, Yinghong PENG, Texture and its effect on mechanical properties of AZ31 magnesium alloy, The Chinese Journal of Nonferrous Metals, 20(3), 371(2010)

(唐伟琴, 张少睿, 范晓慧, 李大永, 彭颖红, AZ31镁合金的织构对其力学性能的影响, 中国有色金属学报, 20(3), 371(2010))
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