|
|
|
|
|
|
| Microstructure and Properties of Mg-9Al-1Mn Alloy Sheets Processed by Hot Rolling |
| MA Shida1, TANG Aitao1,2, PENG Peng1, ZHANG Gen1, SHE Jia1,2, HUANG Guangsheng1,2, PAN Fusheng1,2
|
1 College of Materials Science and Engineering, Chongqing University, Chongqing 400045;
2 National Engineering Research Center for Magnesium Alloys, Chongqing University,Chongqing 400044 |
|
|
|
|
Abstract In this paper, the microstructure and mechanical properties of Mg-9Al-1Mn (AM91) alloy sheets, which processed by hot extrusion in 3 mm followed by single pass large strain hot rolling (LSR) and multi pass small strain hot rolling (SSR) were investigated. And the microstructure and properties of the sheets were examined by X-ray diffraction (XRD), optical microscope, electron back scatter diffraction (EBSD) and tensile test, respectively. The results showed that, compared with the SSR method, the finer grains and more weaken texture could be achieved via using the LSR method in the as-extruded AM91 alloy. Moreover, compared with the SSR sheet, the yield strength (YS), ultimate tensile strength (UTS) and fracture elongation (FE) of LSR AM91 sheet were 193 MPa, 284 MPa and 20.5%, respectively. The plastic deformation capacity had been significantly improved. The mechanical anisotropy of the as-extruded sheet can be improved obviously by LSR method. The In-plane Anisotropy (IPA) of SSR and LSR AM91 sheet after annealing were 5% and 8.8%, respectively.
|
|
Published: 23 January 2019
|
|
|
|
|
1 Ye Junhua, Tang Aitao, Ma Shida, et al. Microstructure and pro-perties of Mg-6Al-1Sn alloy by friction stir welding[J].Materials Review B: Research Papers,2017,31(11):79(in Chinese).
叶俊华,汤爱涛,马仕达,等.搅拌摩擦焊接Mg-6Al-1Sn合金组织与性能研究[J].材料导报:研究篇,2017,31(11):79.
2 Liao Qiyu, Le Qichi. Bullet proof test of magnesium alloy armor plate[J].Journal of Netshape Forming Engineering,2017,9(5):144(in Chinese).
廖启宇,乐启炽.镁合金装甲板防弹测试[J].精密成形工程,2017,9(5):144.
3 Chen Qiaowang, Tang Aitao, Xu Tingyi, et al.High performance cast magnesium rare-earth alloys: Retrospect and prospect[J].Materials Review A: Review Papers,2016,30(9):1(in Chinese).
陈巧旺,汤爱涛,许婷熠,等.高性能铸造稀土镁合金的发展[J].材料导报:综述篇,2016,30(9):1.
4 Chen Shuaifeng, Cheng Ming, Zhang Hongxuan, et al. Simulation and experiment on equal channel angular bending of magnesium alloy sheet[J].Journal of Netshape Forming Engineering,2017,9(4):90(in Chinese).
陈帅锋,程明,张宏轩,等.镁合金板材等通道弯曲变形模拟与实验[J].精密成形工程,2017,9(4):90.
5 Liu Q, Zhou X, Zhou H T, et al. The effect of extrusion conditions on the properties and textures of AZ31B alloy[J].Journal of Magnesium and Alloys,2017,5:202.
6 Zhang Jihao, Wu Yang, Wan Yuanyuan, et al. Elevated temperature compression deformation behavior of AZ91D magnesium alloy processed by equal channel angular extrusion[J].Journal of Netshape Forming Engineering,2017,9(5):177(in Chinese).
张继豪,吴洋,万元元,等.等通道角挤压AZ91D镁合金热压缩变形行为[J].精密成形工程,2017,9(5):177.
7 Luo A A. Magnesium casting technology for structural applications[J].Journal of Magnesium and Alloys,2013,1(1):2.
8 Liu Luming, Wang Zhongtang, Liu Lizhi. Numerical analysis of indenten-flatten compound deformation technology of AZ31 magne-sium alloy[J].Journal of Netshape Forming Engineering,2017,9(2):34(in Chinese).
刘鲁铭,王忠堂,刘立志.AZ31镁合金压痕-压平复合形变数值模拟[J].精密成形工程,2017,9(2):34.
9 Jiang Q, Ma X, Zhang K, et al. Anisotropy of the crystallographic orientation and corrosion performance of high-strength AZ80 Mg alloy[J].Journal of Magnesium and Alloys,2015,3:309.
10 Cao lingyu, Luo Xingbai, Liu Guoqing, et al. Development and application of military armor protection technology[J].Packing Engineering,2018,39(3):223(in Chinese).
曹凌宇,罗兴柏,刘国庆,等.军用装甲防护技术发展及应用[J].包装工程,2018,39(3):223.
11 Jin Zhaoyang, Yin Kai, Shi Weiwei, et al. Deformation temperature dependence of grain size evolution in magnesium alloys processed by equal channel angular pressing in finite element method[J].Journal of Netshape Forming Engineering,2017,9(3):19(in Chinese).
金朝阳,殷凯,史伟伟,等.变形温度对镁合金等通道转角挤压晶粒尺寸演变影响的有限元模拟[J].精密成形工程,2017,9(3):19.
12 Zhang Dingfei, Dai Qingwei, Hu Yaobo, et al. Progress in the research on rolling formation of magnesium alloy sheet[J].Journal of Materials Engineering,2009(10):85(in Chinese).
张丁非,戴庆伟,胡耀波,等.镁合金板材轧制成型的研究进展[J].工程材料,2009(10):85.
13 Liu P, Jiang H T, Cai Z X. The effect of Y, Ce and Gd on texture, recrystallization and mechanical property of Mg-Zn alloys[J].Journal of Alloys and Compounds,2016,4:188.
14 Li L, Nguyen D N. Effect of yttrium on corrosion behavior of extruded AZ61 Mg alloy[J].Journal of Alloys and Compounds,2016,4:44.
15 Staiger M P, Pietak A M, Huadmai J, et al. Magnesium and its alloys as orthopedic biomaterials: A review[J].Biomaterials,2006,27(9):1728.
16 Barnett M R, Keshavarz Z, Nave M D. Microstructural features of rolled Mg-3Al-1Zn[J].Metallurgical and Materials Transactions A,2005,36A(7):1697.
17 Pérez-PradoM T, Del Valle J A, Contreras J M, et al. Microstructural evolution during large strain hot rolling of an AM60 Mg alloy[J].Scripta Materialia,2004,50(5):661.
18 Pérez-Prado M T, Del Valle J A, Ruano O A.Texture evolution du-ring large-strain hot rolling of the Mg AZ61 alloy[J].Materials Science and Engineering A,2003,355:68.
19 Zhan Meiyan, Li Yuanyuan, Chen Wande, et al. Preparation of fine-grain AZ31 alloy sheet by large strain rolling technology[J].Journal of South China University of Technology, Natural Science Edition,2007,35(8):16(in Chinese).
詹美艳,李元元,陈宛德,等.大应变轧制技术制备细晶AZ31镁合金板材[J].华南理工大学学报,自然科学版,2007,35(8):16.
20 Guo F, Zhang D F, Fan X W, et al. Deformation behavior of AZ31 Mg alloys sheet during large strain hot rolling process: A study on microstructure and texture evolutions of an intermediate--rolled sheet[J].Journal of Alloys and Compounds,2016,663:140.
21 Huang X S, Suzuki K,Chino Y, et al. Texture and stretch formability of AZ61 and AM60 magnesium alloy sheets processed by high-temperature rolling[J].Journal of Alloys and Compounds,2015,632:94.
22 Zhou T, Yang Z, Hu D, et al.Effect of the final rolling speeds on the stretch formability of AZ31 alloy sheet rolled at a high temperature[J].Journal of Alloys and Compounds,2015,650:436.
23 Huang X S, Suzuki K, Chino Y, et al.Improvement of stretch for-mability of Mg-3Al-1Zn alloy sheet by high temperature rolling at finishing pass[J].Journal of Alloys and Compounds,2011,509:7579.
24 Xu C, Zheng M Y, Xu S W, et al. Improving strength and ductility of Mg-Gd-Y-Zn-Zr alloy simultaneously via extrusion, hot rolling and ageing[J].Materials Science and Engineering A,2015,643:137.
25 Yu Z W, Hu M D, Tang A T, et al. Effect of aluminium on the microstructure and mechanical properties of as-cast magnesium-manganese alloys[J].Materials Science and Technology,2017,33(17):2086.
26 Yu Zhengwen. Investigation on microstructure and mechanical pro-perties of Mg-Mn series alloys[D].Chongqing: Chongqing University,2015(in Chinese).
喻正文.Mg-Mn系合金显微组织及力学性能的研究[D].重庆:重庆大学,2015.
27 Jata K V, Hopkins A K, Rioja R J. The anisotropy and texture of Al-Li alloys[J].Materials Science Forum,1996,217:647.
28 She J, Pan F S, Hu H H.Microstructures and mechanical properties of as-extruded Mg-5Sn-1Zn-xAl (x=1, 3 and 5) alloys[J].Progress in Natural Science: Materials International.2015,25:267.
29 Huang X S, Suzuki K, Chino Y, et al. Influence of aluminum content on the texture and sheet formability of AM series magnesium alloys[J].Materials Science and Engineering A,2015,633:144. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2018, Vol. 32 
