轧制态<strong>Mg-<i>x</i>Zn-0.5Er</strong>合金板材组织及室温成形性能

doi:10.11900/0412.1961.2021.00550

金属学报

2023, Vol. 59

Issue (11): 1439-1447 DOI: 10.11900/0412.1961.2021.00550

本期目录 | 过刊浏览

轧制态Mg-xZn-0.5Er合金板材组织及室温成形性能

娄峰¹, 刘轲¹(

), 刘金学², 董含武³, 李淑波¹, 杜文博¹

^1.北京工业大学材料与制造学部北京 100124
^2.郑州轻研合金科技有限公司郑州 450041
^3.重庆市科学技术研究院金属材料先进制备与成形重点实验室重庆 401123

Microstructures and Formability of the As-Rolled Mg- xZn-0.5Er Alloy Sheets at Room Temperature

LOU Feng¹, LIU Ke¹(

), LIU Jinxue², DONG Hanwu³, LI Shubo¹, DU Wenbo¹

^1.Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
^2.Zhengzhou Light Alloy Institute Co. Ltd., Zhengzhou 450041, China
^3.Key Laboratory of Advanced Forming of Metallic Materials, Chongqing Academy of Sciece and Technology, Chongqing 401123, China

引用本文:

娄峰, 刘轲, 刘金学, 董含武, 李淑波, 杜文博. 轧制态Mg-xZn-0.5Er合金板材组织及室温成形性能[J]. 金属学报, 2023, 59(11): 1439-1447.
Feng LOU, Ke LIU, Jinxue LIU, Hanwu DONG, Shubo LI, Wenbo DU. Microstructures and Formability of the As-Rolled Mg- xZn-0.5Er Alloy Sheets at Room Temperature[J]. Acta Metall Sin, 2023, 59(11): 1439-1447.

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摘要:

研究了Mg-xZn-0.5Er (x = 0.5、2.0、3.0、4.0，质量分数，%)合金板材在轧制过程中微观组织及织构的演变规律，并探讨了织构及第二相对合金室温成形性能的影响规律。结果表明，随着Zn含量的增加，合金提前发生了完全动态再结晶，在后续轧制过程中细小的动态再结晶晶粒长大并在应力的作用下被拉长，其显微组织由细小的等轴晶粒和粗大的变形晶粒组成，织构强度增大。当合金组织内仅存在细小弥散的第二相时，板材成形性能主要受板材基面织构影响；当合金组织内存在粗大第二相时，板材成形性能受板材基面织构和第二相共同影响，且当第二相含量较高时，第二相对成形性能的恶化作用会大于织构弱化所带来的积极作用。

关键词 ： Mg-Zn-Er合金, 动态再结晶, 织构, 第二相, 成形性能

Abstract：

As lightweight requirements rise in transportation, aerospace, and other industries, magnesium alloys have a great application prospect. However, the low formability capabilities of magnesium alloys lead to a severe limit in applications. At present, there are many reports on the influences of texture and second phases on the formability of magnesium alloys at room temperature. Nevertheless, the dominant factors affecting the formability performance of magnesium alloys at room temperature are not clear. In this study, the development of the microstructures and texture of Mg-xZn-0.5Er (x = 0.5, 2.0, 3.0, 4.0, mass fraction, %) alloy sheets were studied, and the impact of the texture and second phases on the formability of these sheets were also investigated. The findings showed that the increase in Zn addition led to an early and complete dynamic recrystallization (DRX) in Mg-Zn-Er alloys sheets, and these recrystallized grains would expand significantly during subsequent hot rolling processes. These recrystallized grains with a large size were typically elongated and then helped to create a strong basal texture. Thus, it was discovered that the microstructures of these sheets were typically made up of equiaxed and elongated grains. The formability performance of these sheets was strongly related to the size of the second phases and the texture. The formability of the sheets containing microscopic second phases mainly depended on the basal texture, while the formability of the sheets which contained coarse second phases was mostly influenced by the second phases and basal texture. Particularly, when the component of the coarse second was larger, the formability would get more inferior due to the predominant role of the second phase at room temperature.

Key words： Mg-Zn-Er alloy dynamic recrystallization texture second phase formability

收稿日期: 2021-12-13

ZTFLH:

TG146.22

基金资助:国家重点研发计划项目(2021YFB3701100);重庆市科研机构绩效激励引导专项项目(cstc2021jxjl50004);重庆市科研机构绩效激励引导专项项目(cstc2021jxjl50004)

通讯作者: 刘轲，lk@bjut.edu.cn，主要从事高强稀土镁合金及高塑性镁合金研究

Corresponding author: LIU Ke, associate professor, Tel: (010)67392423, E-mail: lk@bjut.edu.cn

作者简介: 娄峰，男，1997年生，博士生

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https://www.ams.org.cn/CN/10.11900/0412.1961.2021.00550 或 https://www.ams.org.cn/CN/Y2023/V59/I11/1439

图1 轧制态Mg-xZn-0.5Er (x = 0.5、2.0、4.0)合金不同变形量下轧向-横向(RD-TD)面微观组织的OM像

图2 变形量为25%时轧制态Mg-2.0Zn-0.5Er合金轧向-法向(RD-ND)面的EBSD分析

图3 变形量为44%时轧制态Mg-2.0Zn-0.5Er合金RD-ND面的EBSD分析

图4 变形量为78%时轧制态Mg-xZn-0.5Er合金RD-TD面微观组织的OM像

图5 变形量为78%时轧制态Mg-xZn-0.5Er合金RD-ND面的EBSD像

图6 室温条件下变形量为78%时轧制态Mg-xZn-0.5Er合金的杯突成形性能

图7 轧制态Mg-2.0Zn-0.5Er合金板材的杯突失效分析

1	You S H, Huang Y D, Kainer K U, et al. Recent research and developments on wrought magnesium alloys [J]. J. Magn. Alloy., 2017, 5: 239 doi: 10.1016/j.jma.2017.09.001
2	Liu X W, Liu Y, Jin B, et al. Microstructure evolution and mechanical properties of a SMATed Mg alloy under in situ SEM tensile testing [J]. J. Mater. Sci. Technol., 2017, 33: 224 doi: 10.1016/j.jmst.2016.11.012
3	Zhang J, Joshi S P. Phenomenological crystal plasticity modeling and detailed micromechanical investigations of pure magnesium [J]. J. Mech. Phys. Solids, 2012, 60: 945 doi: 10.1016/j.jmps.2012.01.005
4	Sabat R K, Brahme A P, Mishra R K, et al. Ductility enhancement in Mg-0.2%Ce alloys [J]. Acta Mater., 2018, 161: 246 doi: 10.1016/j.actamat.2018.09.023
5	Ding W J, Jin L, Wu W X, et al. Texture and texture optimization of wrought Mg alloy [J]. Chin. J. Nonferrous Met., 2011, 21: 2371
5	丁文江, 靳丽, 吴文祥等. 变形镁合金中的织构及其优化设计 [J]. 中国有色金属学报, 2011, 21: 2371
6	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]. Mater. Sci. Eng., 2015, A633: 144
7	Nakata T, Xu C, Ohashi H, et al. New Mg-Al based alloy sheet with good room-temperature stretch formability and tensile properties [J]. Scr. Mater., 2020, 180: 16 doi: 10.1016/j.scriptamat.2020.01.015
8	Wang Q H, Shen Y Q, Jiang B, et al. A good balance between ductility and stretch formability of dilute Mg-Sn-Y sheet at room temperature [J]. Mater. Sci. Eng., 2018, A736: 404
9	Bian M Z, Huang X S, Mabuchi M, et al. Compositional optimization of Mg-Zn-Sc sheet alloys for enhanced room temperature stretch formability [J]. J. Alloys Compd., 2020, 818: 152891 doi: 10.1016/j.jallcom.2019.152891
10	Luo Z P, Zhang S Q, Tang Y L, et al. Thermodynamics of Mg-Zn-RE system solutions forming stable quasicrystals [J]. Scr. Metall. Mater., 1994, 30: 393 doi: 10.1016/0956-716X(94)90592-4
11	Xu D K, Tang W N, Liu L, et al. Effect of W-phase on the mechanical properties of as-cast Mg-Zn-Y-Zr alloys [J]. J. Alloys Compd., 2008, 461: 248 doi: 10.1016/j.jallcom.2007.07.096
12	Kawamura Y, Hayashi K, Inoue A, et al. Rapidly solidified powder metallurgy Mg₉₇Zn₁Y₂ alloys with excellent tensile yield strength above 600 MPa [J]. Mater. Trans., 2001, 42: 1172 doi: 10.2320/matertrans.42.1172
13	Al-Samman T. Modification of texture and microstructure of magnesium alloy extrusions by particle-stimulated recrystallization [J]. Mater. Sci. Eng., 2013, A560: 561
14	Wang Q F, Du W B, Liu K, et al. Microstructure, texture and mechanical properties of as-extruded Mg-Zn-Er alloys [J]. Mater. Sci. Eng., 2013, A581: 31
15	Meng Y Z, Yu J M, Liu K, et al. The evolution of long-period stacking ordered phase and its effect on dynamic recrystallization in Mg-Gd-Y-Zn-Zr alloy processed by repetitive upsetting-extrusion [J]. J. Alloys Compd., 2020, 828: 154454. doi: 10.1016/j.jallcom.2020.154454
16	Humphreys F J. Recrystallization mechanisms in two-phase alloys [J]. Met. Sci., 1979, 13: 136 doi: 10.1179/msc.1979.13.3-4.136
17	Lou F, Liu K, Lui J X, et al. Microstructure and formability at room temperature of as-annealing Mg-xZn-0.5Er alloy sheets [J]. Chin. J. Nonferrous Met., 2022, 32: 365
17	娄峰, 刘轲, 刘金学等. 退火态Mg-xZn-0.5Er合金板材组织及室温成形性能 [J]. 中国有色金属学报, 2022, 32: 365
18	Kaibyshev R. Dynamic recrystallization in magnesium alloys [A]. Advances in Wrought Magnesium Alloys [M]. Cambridge, UK: Woodhead Publishing, 2012: 186
19	Fatemi-Varzaneh S M, Zarei-Hanzaki A, Beladi H. Dynamic recrystallization in AZ31 magnesium alloy [J]. Mater. Sci. Eng., 2007, A456: 52
20	Al-Samman T, Gottstein G. Dynamic recrystallization during high temperature deformation of magnesium [J]. Mater. Sci. Eng., 2008, A490: 411
21	Vaughan M W, Nasim W, Dogan E, et al. Interplay between the effects of deformation mechanisms and dynamic recrystallization on the failure of Mg-3Al-1Zn [J]. Acta Mater., 2019, 168: 448 doi: 10.1016/j.actamat.2019.02.010
22	Chino Y, Huang X S, Suzuki K, et al. Influence of Zn concentration on stretch formability at room temperature of Mg-Zn-Ce alloy [J]. Mater. Sci. Eng., 2010, A528: 566
23	Liu K, Lou F, Fu J J, et al. Microstructure and corrosion behaviors of as-rolled Mg-Zn-Er alloy sheets [J]. Trans. Nonferrous Met. Soc. China, 2022, 32: 1881 doi: 10.1016/S1003-6326(22)65915-6
24	Liu K, Sun C C, Wang Z H, et al. Microstructure, texture and mechanical properties of Mg-Zn-Er alloys containing I-phase and W-phase simultaneously [J]. J. Alloys Compd., 2016, 665: 76 doi: 10.1016/j.jallcom.2015.10.262
25	Qin D H, Wang M J, Sun C Y, et al. Interaction between texture evolution and dynamic recrystallization of extruded AZ80 magnesium alloy during hot deformation [J]. Mater. Sci. Eng., 2020, A788: 139537
26	Suh B C, Kim J H, Hwang J H, et al. Twinning-mediated formability in Mg alloys [J]. Sci. Rep., 2016, 6: 22364 doi: 10.1038/srep22364
27	Robson J D, Henry D T, Davis B. Particle effects on recrystallization in magnesium-manganese alloys: Particle-stimulated nucleation [J]. Acta Mater., 2009, 57: 2739 doi: 10.1016/j.actamat.2009.02.032
28	Robson J D, Henry D T, Davis B. Particle effects on recrystallization in magnesium-manganese alloys: Particle pinning [J]. Mater. Sci. Eng., 2011, A528: 4239
29	Liu P, Jiang H T, Duan X G, et al. Effects of yttrium (Y) and cerium (Ce) on microstructure and stretch formability of hot rolled Mg-1.5Zn magnesium sheet at room temperature [J]. J. Mater Eng., 2014, (12): 1
29	刘鹏, 江海涛, 段晓鸽等. 稀土元素Y和Ce对热轧Mg-1.5Zn镁合金组织和室温成形性能的影响 [J]. 材料工程, 2014, (12): 1
30	Cai Z X, Tang D, Jiang H T, et al. Influence of Gd concentration on texture and stretch formability of rolled Mg-Zn-Gd alloys at room temperature [J]. Rare Met. Mater. Eng., 2013, 42: 2073
30	蔡正旭, 唐荻, 江海涛等. 不同Gd含量对变形Mg-Zn-Gd合金织构和室温成形性能的影响 [J]. 稀有金属材料与工程, 2013, 42: 2073

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