Superplasticity in high temperature magnesium alloy WE43

被引：51
作者：
Kandalam, Sahithya [1 ]
Sabat, R. K. [1 ]
Bibhanshu, N. [1 ]
Avadhani, G. S. [1 ]
Kumar, S. [1 ]
Suwas, Satyam [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2017年 / 687卷
关键词：
Magnesium alloy; Severe plastic deformation; Multi axial forging; Strain rate sensitivity; Superplasticity; Grain boundary sliding; CHANNEL-ANGULAR EXTRUSION; STRAIN-RATE SUPERPLASTICITY; HOT DEFORMATION-BEHAVIOR; FINE-GRAINED MG; TEXTURE EVOLUTION; WORKING PARAMETERS; MICROSTRUCTURE; STEEL; SLIP; MECHANISMS;
D O I：
10.1016/j.msea.2016.12.129
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Severe plastic deformation of the magnesium alloy WE43 (Mg-4%Y-2.3%Nd-0.5%Zr) has been carried out by multi-axial forging (MAF) in order to refine the grain size from 25 mu m to 6 mu m. Deformation behaviour of the as processed material has been investigated. Compression tests were carried out in the temperature range 250-450 degrees C and in the strain rate range 10(-3)-10 (s-1). Strain-rate sensitivity values were calculated from the stress strain curves. A high value of strain rate sensitivity was noticed in the temperature range 350-400 C-o and the strain rate range 10(-4)-10 (s-1), which indicated the possibility of superplastic forming after multi-axial forging. The superplastic behaviour of MAF processed samples was further investigated by carrying out tensile tests. An excellent superplastic elongation of 470% was obtained at the temperature 375 C-o and strain rate 3*10(-4) s(-1). The material also exhibited superplasticity at higher strain rates at this temperature.
引用
收藏
页码：85 / 92
页数：8
相关论文
共 38 条
[1]   Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B [J].
Agnew, SR ;
Duygulu, Ö .
INTERNATIONAL JOURNAL OF PLASTICITY, 2005, 21 (06) :1161-1193
[2]   Room temperature formability of a magnesium AZ31 alloy: Examining the role of texture on the deformation mechanisms [J].
Al-Samman, T. ;
Gottstein, G. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2) :406-414
[3]   Hot deformation and processing maps of extruded ZE41A magnesium alloy [J].
Anbuselvan, S. ;
Ramanathan, S. .
MATERIALS & DESIGN, 2010, 31 (05) :2319-2323
[4]   Analysis of texture evolution in magnesium during equal channel angular extrusion [J].
Beausir, Benoit ;
Suwas, Satyam ;
Toth, Laszlo S. ;
Neale, Kenneth W. ;
Fundenberger, Jean-Jacques .
ACTA MATERIALIA, 2008, 56 (02) :200-214
[5]   Microstructure and Texture Evolution in Interstitial-free (IF) Steel processed by Multi-Axial Forging [J].
Bhowmik, Ayan ;
Biswas, Somjeet ;
Dhinwal, Satyaveer Singh ;
Sarkar, Apu ;
Ray, Ranjit Kumar ;
Bhattacharjee, Debashish ;
Suwas, Satyam .
TEXTURES OF MATERIALS, PTS 1 AND 2, 2012, 702-703 :774-+
[6]   Asymmetric and symmetric rolling of magnesium: Evolution of microstructure, texture and mechanical properties [J].
Biswas, Somjeet ;
Kim, Dong-Ik ;
Suwas, Satyam .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 550 :19-30
[7]   Evolution of sub-micron grain size and weak texture in magnesium alloy Mg-3Al-0.4Mn by a modified multi-axial forging process [J].
Biswas, Somjeet ;
Suwas, Satyam .
SCRIPTA MATERIALIA, 2012, 66 (02) :89-92
[8]   Room-temperature equal channel angular extrusion of pure magnesium [J].
Biswas, Somjeet ;
Dhinwal, Satyaveer Singh ;
Suwas, Satyam .
ACTA MATERIALIA, 2010, 58 (09) :3247-3261
[9]   Superplastic behavior and microstructure evolution of a fine-grained Mg-Y-Nd alloy processed by submerged friction stir processing [J].
Cao, Genghua ;
Zhang, Datong ;
Chai, Fang ;
Zhang, Weiwen ;
Qiu, Cheng .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 642 :157-166
[10]   Hot deformation behavior of an extruded Mg-Li-Zn-RE alloy [J].
Chen, Zhaoyun ;
Li, Zhiqiang ;
Yu, Chun .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (03) :961-966
1234