Transactions of Materials and Heat Treatment

Title：Microstructure and thermal plasticity of AZ31 magnesium alloy extruded tube

Authors： YANG Shu-heng

Unit： Shenyang Ligong University

KeyWords： magnesium alloy tube extrusion microstructure performance thermal plasticity

ClassificationCode：TG376

year,vol(issue):pagenumber：2013,38(4):140-143

Abstract：

The microstructure performance, mechanical behaviors and the subsequent changes of magnesium alloy AZ31 tube extrusion under high temperature and room temperature were studied. Under room temperature, for magnesium alloy tube, the yield intention, tensile intention and elongation ratio were respectively 190 MPa, 280 MPa and 17%. Under 400℃ high temperature, the yield intension and tensile intension are 25MPa approximately and elongation ratio is 180%. Through analyzing the law of influencing on mechanical behaviors of Mg tube by extrusion deformation, it is concluded that with the increasing of deformation, the mechanical behavior values of magnesium alloy also increase. In addition, the proper technical parameters of tube extrusion of magnesium alloy were determined.

Funds：

杨树恒（1959-)，男，硕士，讲师

Reference：

［1］Jin L, Lin D L, Mao D L. Microstructure and mechanical properties of AZ31 Mg alloy processed by two-step equal channel angular extrusion[J]. Journal of Shanghai Jiaotong University, 2005,39（11）: 1775-1778.
［2］Jin Li, Lin D L, Mao D L. Mechanical properties and microstructure of AZ31 Mg alloy processed by two-step equal channel angular extrusion[J]. Materials Letters, 2005,59(18): 2267-2270.
［3］Lin H K, Huang J C. High strain rate and/or low temperature super-plasticity in AZ31 Mg alloys processed by simple high-ratio extrusion methods[J]. Materials Transactions, 2002, 43(10):2424-2432.
［4］Lapovok R Y, Barnett M R. Construction of extrusion limit diagram for AZ31 magnesium alloy by FE simulation[J]. Journal of Materials Processing Technology, 2004, 146(3): 408-414.
［5］Choy C M, Lim S C V, Chan C F. Plane-strain backward extrusion of AZ31 magnesium alloy[J]. Materials Science Forum, 2003, 419-422(1):337-344.
［6］Li Y Y, Zhang D T, Chen W P. Microstructure evolution of AZ31 magnesium alloy during equal channel angular extrusion[J]. Journal of Materials Science, 2004, 39(11):3759-3761.
［7］Lin H K, Huang J C. High. strain rate and/or low temperature superplasticity in AZ31 Mg alloys processed by simple high-ratio extrusion methods[J]. Materials Transactions, 2002, 43(10):2424-2432.
［8］Bohlen J, Yi S B, Swiostek J. Microstructure and texture development during hydrostatic extrusion of magnesium alloy AZ31[J]. Scripta Materialia, 2005, 53(2):259-264.
［9］Osamu H, Manabe Ken-Ichi, Nishimura Hisashi. Deformation behavior of AZ31 magnesium alloy extruded tube under press bending at room temperature[J]. Journal of Japan Institute of Light Metals, 2002, 52(7):298-302.
［10］Huang C C. Basal-texture induced low formability during room temperature hydro-forming of fine-grained AZ31 Mg tubes[J]. Materials Transactions, 2004, 45(11): 3142-3149.
［11］Wang Y N, Lee C J. Influence from extrusion parameters on high strain rate and low temperature superplasticity of AZ series Mg-based alloys[J]. Materials Science Forum, 2003, 426-432(3): 2655-2660.
［12］Xiong F, Davies C H J. Anisotropy of tensile properties of extruded magnesium alloy AZ31[J]. Materials Science Forum, 2003, 426-432(4):3605-3610.
［13］Kobayashi T, Koike J, Yoshida Y. Grain size dependence of active slip systems in an AZ31 magnesium alloy[J]. Journal of the Japan Institute of Metals, 2003, 67(4):149-152.

Service：

【This site has not yet opened Download Service】【Add Favorite】