研究挤压态Mg?2Dy?0.5Zn (摩尔分数，%)合金板材的压缩各向异性。合金主要由α-Mg、(Mg, Zn)xDy相和大量沿挤压方向分布的长周期有序堆垛(LPSO)结构相组成。压缩实验测试结果表明，合金呈明显的压缩各向异性。平行于挤压方向(ED)合金试样的压缩强度显著高于板材横向(TD)及与挤压方向成45°角的合金试样的压缩强度。ED方向合金试样的压缩屈服强度(CYS)、最大压缩强度(UCS)和压缩应变分别为274.65 MPa,518.94 MPa和12.93%。合金压缩各向异性主要与LPSO相的分布以及变形晶粒中??1010//ED类型织构的形成有关。
Compressive anisotropy of extruded Mg?2Dy?0.5Zn (mole fraction, %) alloy sheet was investigated. The alloy sheet was mainly composed ofα-Mg, (Mg, Zn)xDy phase and a large number of long period stacking ordered (LPSO) phases distributed along the extrusion direction. The compressive experimental results show that the alloy sheet exhibits an obvious compressive anisotropy. The compressive strength of the specimen in the extrusion direction (ED) is higher than those of the specimens in the transverse direction (TD) and 45° inclined to the extrusion direction. The compressive yield strength (CYS), ultimate compressive strength (UCS) and compressive strain of the specimen in the ED are 274.65 MPa, 518.94 MPa and 12.93%, respectively. The compressive anisotropy is mainly attributed to the distribution of LPSO phase and formation of?1010?//ED fiber texture in the deformed grains.
参考文献
| [1] | Qiuming Peng;Hanwu Dong;Lidong Wang.Microstructure and mechanical property of Mg-8.31Gd-l.12Dy-0.38Zr alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20081/2(1/2):193-197. |
| [2] | Jinghuai Zhang;Zhe Leng;Shujuan Liu.Microstructure and mechanical properties of Mg-Gd-Dy-Zn alloy with long period stacking ordered structure or stacking faults[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,201129(29):7717-7722. |
| [3] | X. Gao;S.M. He;X.Q. Zeng;L.M. Peng;W.J. Ding;J.F. Nie.Microstructure evolution in a Mg-15Gd-0.5Zr (wt.%) alloy during isothermal aging at 250℃[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,20061/2(1/2):322-327. |
| [4] | Akira Ono;Eiji Abe;Takaomi Itoi.Microstructure Evolutions of Rapidly-Solidified and Conventionally-Cast Mg_(97)Zn_1Y_2 Alloys[J].Materials transactions,20085(5):990-994. |
| [5] | Jongbeom Lee;Kazuhisa Sato;Toyohiko J. Konno.Stabilization of Stacking Faults and a Long Period Stacking Phase Dispersed in alpha-Mg Crystalline Grains of Mg-0.7at percent Zn-1.4at percent Y Alloy[J].Materials transactions,20091(1):222-225. |
| [6] | Li Zhang;Jinghuai Zhang;Zhe Leng;Shujuan Liu;Qiang Yang;Ruizhi Wu;Milin Zhang.Microstructure and mechanical properties of high-performance Mg-Y-Er-Zn extruded alloy[J].Materials & design,2014Feb.(Feb.):256-263. |
| [7] | Bi, G.;Fang, D.;Zhao, L.;Lian, J.;Jiang, Q.;Jiang, Z..An elevated temperature Mg-Dy-Zn alloy with long period stacking ordered phase by extrusion[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,201110/11(10/11):3609-3614. |
| [8] | Itoi, T.;Inazawa, T.;Yamasaki, M.;Kawamura, Y.;Hirohashi, M..Microstructure and mechanical properties of Mg-Zn-Y alloy sheet prepared by hot-rolling[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:216-223. |
| [9] | Noda, M.;Matsumoto, R.;Kawamura, Y..Forging induces changes in the formability and microstructure of extruded Mg_(96)Zn_2Y_2 alloy with a long-period stacking order phase[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:21-27. |
| [10] | Han, X.Z.;Xu, W.C.;Yuan, L.;Shan, D.B..The influences of long period stacking order phase and texture on compressive behavior of an extruded magnesium alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:246-255. |
| [11] | Chino, Y;Kado, M;Mabuchi, M.Enhancement of tensile ductility and stretch formability of magnesium by addition of 0.2 wt%(0.035 at%)Ce[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,20081/2(1/2):343-349. |
| [12] | Zou, Guodong;Cai, Xuecheng;Fang, Daqing;Wang, Zhen;Zhao, Tieshi;Peng, Qiuming.Age strengthening behavior and mechanical properties of Mg-Dy based alloys containing LPSO phases[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2015:10-15. |
| [13] | Bi, Guangli;Li, Yuandong;Huang, Xiaofeng;Chen, Tijun;Lian, Jianshe;Jiang, Zhonghao;Ma, Ying;Hao, Yuan.Deformation behavior of an extruded Mg-Dy-Zn alloy with long period stacking ordered phase[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2015:52-60. |
| [14] | Zhe Leng;Jinghuai Zhang;Chongliang Cui;Jianfeng Sun;Shujuan Liu;Ruizhi Wu;Milin Zhang.Compression properties at different loading directions of as-extruded Mg-9RY-4Zn (RY: Y-rich misch metal) alloy with long period stacking ordered phase[J].Materials & design,2013Oct.(Oct.):561-566. |
| [15] | Yuri Jono;Michiaki Yamasaki;Yoshihito Kawamura.Effect of LPSO PhasetoStimulated Texture Evolution on Creep Resistance of Extruded MgtoZntoGd Alloys[J].Materials transactions,20135(5):703-712. |
| [16] | Cuangli Bi;Daqing Fang;Weichuan Zhang;Jothi Sudagar;Qingxin Zhang;JiansheLian;Zhonghao diang.Microstructure and Mechanical Properties of an Extruded Mg-2Dy-0.5Zn Alloy[J].材料科学技术学报：英文版,2012(06):543-551. |
| [17] | Guangli Bi;Daqing Fang;Lei Zhao.Double-peak ageing behavior of Mg-2Dy-0.5Zn alloy[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,201132(32):8268-8275. |
| [18] | Li, R. G.;Zhang, H. J.;Fu, G. Y..Microstructure and mechanical properties of extruded Mg96Zn1Y3 alloy[J].Materials Characterization,2014:107-112. |
| [19] | K.HAGIHARA;A.KINOSHITA;Y.SUGINO;M.YAMASAKI;Y.KAWAMURA;H.Y.YASUDA;Y.UMAKOSHI.Plastic deformation behavior of Mg97Zn1Y2 extruded alloys[J].中国有色金属学报（英文版）,2010(07):1259-1268. |
| [20] | Michiaki Yamasaki;Kenji Hashimoto;Koji Hagihara.Effect of multimodal microstructure evolution on mechanical properties of Mg-Zn-Y extruded alloy[J].Acta materialia,20119(9):3646-3658. |
| [21] | Kabirian, Farhoud;Khan, Akhtar S.;Gnaeupel-Herlod, Thomas.Visco-plastic modeling of mechanical responses and texture evolution in extruded AZ31 magnesium alloy for various loading conditions[J].International Journal of Plasticity,2015:1-20. |
| [22] | Ma, Q.;El Kadiri, H.;Oppedal, A.L.;Baird, J.C.;Li, B.;Horstemeyer, M.F.;Vogel, S.C..Twinning effects in a rod-textured AM30 Magnesium alloy[J].International Journal of Plasticity,2012:60-76. |
| [23] | K. Hagihara;N. Yokotani;Y. Umakoshi.Plastic deformation behavior of Mg_(12)YZn with 18R long-period stacking ordered structure[J].Intermetallics,20102(2):267-276. |
| [24] | K. Hagihara;Y. Sugino;Y. Fukusumi.Plastic Deformation Behavior of Mg_(12)ZnY LPSO-Phase with 14H-Typed Structure[J].Materials transactions,20116(6):1096-1103. |
| [25] | K. Hagihara;Y. Fukusumi;M. Yamasaki.NontoBasal Slip Systems Operative in Mg_(12)ZnY LongtoPeriod Stacking Ordered (LPSO) Phase with 18R and 14H Structures[J].Materials transactions,20135(5):693-697. |
| [26] | G. Wan;B.L. Wu;Y.D. Zhang;G.Y. Sha;C. Esling.Anisotropy of dynamic behavior of extruded AZ31 magnesium alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,201012(12):2915-2924. |
| [27] | X.H. Shao;Z.Q. Yang;X.L. Ma.Strengthening and toughening mechanisms in Mg-Zn-Y alloy with a long period stacking ordered structure[J].Acta materialia,201014(14):4760-4771. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%