<strong>Mg-0.4Zn</strong>镁合金挤压板拉伸变形组织的演变

doi:10.11901/1005.3093.2020.515

材料研究学报

2021, Vol. 35

Issue (7): 553-560 DOI: 10.11901/1005.3093.2020.515

研究论文

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Mg-0.4Zn镁合金挤压板拉伸变形组织的演变

顾佳卿¹(

), 唐伟能²(

), 徐世伟¹

^1.宝钢股份研究院上海 200431
^2.宝钢金属有限公司技术中心上海 200940

Microstructure Evolution During Tensile Deformation of an Extruded Mg-0.4Zn Alloy Plate

GU Jiaqing¹(

), TANG Weineng²(

), XU Shiwei¹

^1.Shanghai Baosteel Research Institute Center, Shanghai 200431, China
^2.Technology Center, Baosteel Metal Co. , Ltd, Shanghai 200940, China

引用本文:

顾佳卿, 唐伟能, 徐世伟. Mg-0.4Zn镁合金挤压板拉伸变形组织的演变[J]. 材料研究学报, 2021, 35(7): 553-560.
Jiaqing GU, Weineng TANG, Shiwei XU. Microstructure Evolution During Tensile Deformation of an Extruded Mg-0.4Zn Alloy Plate[J]. Chinese Journal of Materials Research, 2021, 35(7): 553-560.

全文: PDF(6991 KB) HTML

摘要:

用电子背散射衍射(EBSD)技术结合原位拉伸，研究了在0%~20%应变条件下，Mg-0.4%Zn二元镁合金晶界、织构和裂纹的变化。结果表明，在拉伸应变从0%增加到20%的过程中，随着应变量的增大材料微观组织中的孪晶逐渐增加。孪晶的类型以{10-12}拉伸孪晶为主；这种孪生使材料的组织织构类型发生了显著的变化，随着应变量的增大(0001)//TD面的新织构组分的强度提高；微观裂纹优先在原始晶界和孪晶尖处萌生并在部分晶粒出现穿晶裂纹，随着应力的增大微裂纹进一步扩展并相互连接最终使材料断裂。

关键词 ：金属材料, 镁合金, 原位拉伸, 孪生, 织构, 开裂

Abstract：

The evolution of grain boundaries, texture types and cracks of an extruded plate of Mg-0.4%Zn alloy during deformation by different tensile strains was investigated by means of in-situ tensile test coupled with electron backscattering diffraction (EBSD) technique in Zeiss Sigma 300 field emission scanning electron microscope. The results show that by the tensile strain from 0% to 20%, the twin boundaries of material increase gradually with the strains, the twin boundaries mainly belong to the type of {10-12} extension twin. Therewith, the twinning may bring about the variation of the texture of the alloy. During the tensile process, cracks in the Mg-Zn alloy may preferentially generate at the tips of the twins and/or initial grain boundaries, simultaneously trans-granular cracks appear in some grains with the increase of strain, finally fracture happened after the propagation of cracks.

Key words： metallic materials magnesium alloy in-situ tension twin texture crack

收稿日期: 2020-12-03

ZTFLH:

TG146.22

基金资助:国家重点研发计划(2016YFB0301102)

作者简介: 顾佳卿，男，1982年生，硕士

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https://www.cjmr.org/CN/10.11901/1005.3093.2020.515 或 https://www.cjmr.org/CN/Y2021/V35/I7/553

表1 试样的化学成分

图1 原位拉伸试样的几何形状和Gatan原位拉伸试验装置

图2 原位拉伸试样的工程应力-应变曲线

图3 不同应变状态下镁合金挤压板的原位反极图面的分布(∥ND面)

图4 不同应变状态下镁合金挤压板的原位二次电子形貌(200倍)

图5 不同应变状态下镁合金挤压板的原位拉伸极图

图6 不同应变状态下镁合金挤压板原位拉伸取向差的分布

图7 20%应变后不同晶粒孪晶晶界取向差分布图及其图例

图8 在20%应变状态下EBSD数据交互分析

1	Liu Q. Research progress on plastic deformation mechanism of Mg alloys [J]. Acta. Metall. Sin., 2010, 46: 1458
1	刘庆.镁合金塑性变形机理研究进展 [J]. 金属学报, 2010, 46: 1458
2	Chen Z H, Yang C H, Huang C Q, et al. Investigation of the twinning in plastic deformation of magnesium alloy [J]. Mater. Rev.. 2006, 20(8): 107
2	陈振华, 杨春花, 黄长清等. 镁合金塑性变形中孪生的研究 [J]. 材料导报, 2006, 20(8) : 107
3	Peng Q M, Sun Y, Wang J, et al. Structural characteristics of {10-11} contraction twin-twin interaction in magnesium [J]. Acta Mater., 2020, 192: 60
4	Jeong J, Alfreider M, Konetschnik R, et al. In-situ TEM observation of {10-12} twin-dominated deformation of Mg pillars: twinning mechanism, size effects and rate dependency [J]. Acta Mater., 2018, 158: 407
5	Liu H Q, Tang D, Cai Q W, et al. Deforming texture and deformation mechanism of coordination of AZ31 magnesium alloy sheets [J]. Chinese J. Mater. Res., 2012, 26(3): 231
5	刘华强, 唐荻, 蔡庆伍等. AZ31镁合金的变形织构和协调变形机理 [J]. 材料研究学报, 2012, 26(3): 231
6	Zhan M Y, Li C M, Shang J L. Investigation of the plastic deformation mechanism and twinning of magnesium alloys [J]. Mater. Rev., 2011, 25(2)A: 1
6	詹美燕, 李春明, 尚俊玲. 镁合金的塑性变形机制和孪生变形研究 [J]. 材料导报, 2011, 25(2)A: 1
7	Li L, Wu Y Z, Wu J. In-situ analysis of grain rotation and lattice strain within a magnesium polycrystal based on synchrotron polychromatic X-ray diffraction technique: (I) prior to twin [J]. Micron, 2018, 111: 1
8	Li L, Wu Y Z, Wu J, et al. In-situ analysis of deformation twins within a magnesium polycrystal: (II) twin growth [J]. Micron, 2019, 119: 8
9	Ando D,Koike J, Sutou Y. The role of deformation twinning in the fracture behavior and mechanism of basal textured magnesium alloys [J]. Mater. Sci. Eng., 2014, 600 A:145
10	Ventura N M D, Kalácska S, Casari D, et al. {10-12} twinning mechanism during in situ micro-tensile loading of pure Mg: role of basal slip and twin-twin interactions [J]. Mater. Design, 2021, 197: 109206.
11	Wu Z, Ahmad R, Yin B, et al. Mechanistic origin and prediction of enhanced ductility in magnesium alloys [J]. Science, 2018, 359: 447
12	Tang W, Han E H, Xu Y B, et al. Effect of Al, Ca alloying element on mechanical behavior of wrought magnesium alloys [J]. Chinese J. Mater. Res., 2005, 19(5): 471
12	唐伟, 韩恩厚, 徐永波等. Al和Ca对变形镁合金性能的影响 [J]. 材料研究学报, 2005, 19(5): 471
13	Jiang M G, Xu C, Yan H, et al. Correlation between dynamic recrystallization and formation of rare earth texture in a Mg-Zn-Gd magnesium alloy during extrusion [J]. Sci. Rep., 2018, 8(1): 16800
14	Wang F, Sandlöbes S, Diehl M, et al. In situ observation of collective grain-scale mechanics in Mg and Mg-rare earth alloys [J], Acta Mater., 2014, 80: 77
15	Basu I, Al-Samman T. Triggering rare earth texture modification in magnesium alloys by addition of zinc and zirconium [J]. Acta Mater., 2014, 67: 116
16	Obara T, Yoshinga H, Morozumi S. {11-22}<1123> slip system in magnesium [J]. Acta Metall., 1973, 21: 845
17	Ding S X, Lee W T, Chang C P. Improvement of strength of magnesium alloy processed by equal channel angular extrusion [J]. Scr. Mater., 2008, 59: 1006
18	Jain A, Duygulu O, Brown D W, et al. Grain size effects on the tensile properties and deformation mechanisms of a magnesium alloy AZ31B sheet [J]. Mater. Sci. Eng., 2008, 486A: 545
19	Reed-Hill R E, Robertson W D. Additional modes of deformation twinning in magnesium [J]. Acta Metall., 1957, 5: 717
20	Pérez-Prado M T, Molina-Aldareguia J M, Cepeda-Jiménez C M. EBSD-assisted slip trace analysis during in situ SEM mechanical testing: application to unravel grain size effects on plasticity of pure Mg polycrystals [J]. JOM, 2016, 68: 116
21	Yu H, Li C, Xin Y, et al. The mechanism for the high dependence of the Hall-Petch slope for twinning/slip on texture in Mg alloys [J]. Acta Mater., 2017, 128: 313

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