层状异构<strong>Mg-3Gd</strong>合金的微观组织和力学性能

doi:10.11900/0412.1961.2022.00343

金属学报

2022, Vol. 58

Issue (11): 1489-1496 DOI: 10.11900/0412.1961.2022.00343

研究论文

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层状异构Mg-3Gd合金的微观组织和力学性能

罗旋¹^,², 韩芳¹^,², 黄天林¹^,², 吴桂林³, 黄晓旭¹^,²(

)

^1.重庆大学材料科学与工程学院教育部轻合金材料国际合作联合实验室重庆 400044
^2.重庆大学沈阳材料科学国家研究中心重庆 400044
^3.北京科技大学北京材料基因工程高精尖创新中心北京 100083

Microstructure and Mechanical Properties of Layered Heterostructured Mg-3Gd Alloy

LUO Xuan¹^,², HAN Fang¹^,², HUANG Tianlin¹^,², WU Guilin³, HUANG Xiaoxu¹^,²(

)

^1.International Joint Laboratory for Light Alloys (MOE), College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
^2.Shenyang National Laboratory for Materials Science, Chongqing University, Chongqing 400044, China
^3.Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China

引用本文:

罗旋, 韩芳, 黄天林, 吴桂林, 黄晓旭. 层状异构Mg-3Gd合金的微观组织和力学性能[J]. 金属学报, 2022, 58(11): 1489-1496.
Xuan LUO, Fang HAN, Tianlin HUANG, Guilin WU, Xiaoxu HUANG. Microstructure and Mechanical Properties of Layered Heterostructured Mg-3Gd Alloy[J]. Acta Metall Sin, 2022, 58(11): 1489-1496.

全文: PDF(2347 KB) HTML

摘要:

以Mg-3Gd (质量分数,%)合金为研究对象,采用累积叠轧和退火工艺制备了由层厚不均匀的回复组织层和再结晶组织层交替组成的层状异构样品。拉伸实验结果表明,这种层状异构样品可以在同等拉伸塑性的条件下获得比均匀再结晶结构更高的强度,并表现出成形加工所需的连续流变行为。回复层和再结晶层之间的协调变形激发了锥面<c + a>滑移在界面附近的开动,增强了位错增殖和累积,提高了加工硬化率和塑性。

关键词 ：层状异构, 力学行为, 变形机制, 镁合金

Abstract：

As the lightest structural metallic materials, Mg alloys have immense development potential in the automotive, aerospace, medical, and electronic industries. However, the low strength and the poor ductility of Mg alloys limit their engineering applications. Recent investigations have shown that heterostructured Mg alloys exhibit significantly improved strength and ductility. This work applies accumulative roll-bonding and subsequent annealing to a Mg-3Gd alloy to produce layered heterostructures composed of alternating recovered and recrystallized layers of varying thicknesses. These heterostructures exhibit higher strength than homogeneous grain structures at a similar tensile ductility. They also show a continuous flow behavior desired for metal forming. A high density of the <c + a> dislocations is activated at the interfaces between the layers to accommodate the deformation incompatibility, which contributes to dislocation multiplications and accumulations and enhances work hardening rate and ductility.

Key words： layered heterostructure mechanical behavior deformation mechanism Mg alloy

收稿日期: 2022-07-18

ZTFLH:

TB31

基金资助:国家重点研发计划项目(2021YFB3702101);国家自然科学基金项目(52071038)

作者简介: 罗旋,男,1991年生,博士

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https://www.ams.org.cn/CN/10.11900/0412.1961.2022.00343 或 https://www.ams.org.cn/CN/Y2022/V58/I11/1489

图1 累积叠轧(ARB)变形Mg-3Gd合金的非均匀微观结构的TEM像和结构示意图(基于文献[27]报道的实验结果)

图2 Mg-3Gd合金经290℃部分再结晶退火形成的由层厚不均匀的回复层和再结晶层组成的层状异构

图3 ARB变形态、层状异构和均匀再结晶结构Mg-3Gd合金的应力-应变曲线和加工硬化率曲线

图4 不同微观结构和晶粒尺寸Mg-3Gd合金的屈服强度与均匀延伸率的关系

图5 不同微观结构AZ31镁合金的屈服强度与均匀延伸率的关系(基于文献[24]报道的实验结果)

图6 层状异构Mg-3Gd样品在拉伸变形后位错结构的TEM像

1	Liu Q. Research progress on plastic deformation mechanism of Mg alloys [J]. Acta Metall. Sin., 2010, 46: 1458 doi: 10.3724/SP.J.1037.2010.00446
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	Hono K, Mendis C L, Sasaki T T, et al. Towards the development of heat-treatable high-strength wrought Mg alloys [J]. Scr. Mater., 2010, 63: 710 doi: 10.1016/j.scriptamat.2010.01.038
3	Agnew S R, Duygulu Ö. Plastic anisotropy and the role of non-basal slip in magnesium alloy AZ31B [J]. Int. J. Plast., 2005, 21: 1161 doi: 10.1016/j.ijplas.2004.05.018
4	Shi B D, Yang C, Peng Y, et al. Anisotropy of wrought magnesium alloys: A focused overview [J]. J. Magnes. Alloys, 2022, 10: 1476 doi: 10.1016/j.jma.2022.03.006
5	Nie J F. Precipitation and hardening in magnesium alloys [J]. Metall. Mater. Trans., 2012, 43A: 3891
6	Wang H Y, Xia N, Bu R Y, et al. Current research and future prospect on low-alloyed high-performance wrought magnesium alloys [J]. Acta Metall. Sin., 2021, 57: 1429 doi: 10.11900/0412.1961.2021.00347
6	王慧远, 夏楠, 布如宇等. 低合金化高性能变形镁合金研究现状及展望 [J]. 金属学报, 2021, 57: 1429 doi: 10.11900/0412.1961.2021.00347
7	Fan H D, Aubry S, Arsenlis A, et al. Grain size effects on dislocation and twinning mediated plasticity in magnesium [J]. Scr. Mater., 2016, 112: 50 doi: 10.1016/j.scriptamat.2015.09.008
8	Luo X. Effect of grain size on the mechanical behavior and deformation mechanisms of Mg-3Gd [D]. Chongqing: Chongqing University, 2019
8	罗旋. Mg-3Gd合金的力学行为、变形机制和晶粒尺寸效应 [D]. 重庆: 重庆大学, 2019
9	Nie J F. Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys [J]. Scr. Mater., 2003, 48: 1009 doi: 10.1016/S1359-6462(02)00497-9
10	Yu H H, Li C Z, Xin Y C, 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 doi: 10.1016/j.actamat.2017.02.044
11	Huang X X. Size effects on the strength of metals [J]. Acta Metall. Sin., 2014, 50: 137 doi: 10.3724/SP.J.1037.2014.00016
11	黄晓旭. 金属强度的尺寸效应 [J]. 金属学报, 2014, 50: 137 doi: 10.3724/SP.J.1037.2014.00016
12	Wu X L, Zhu Y T. Heterogeneous materials: A new class of materials with unprecedented mechanical properties [J]. Mater. Res. Lett., 2017, 5: 527 doi: 10.1080/21663831.2017.1343208
13	Zhu Y T, Ameyama K, Anderson P M, et al. Heterostructured materials: Superior properties from hetero-zone interaction [J]. Mater. Res. Lett., 2021, 9: 1 doi: 10.1080/21663831.2020.1796836
14	Ovid'ko I A, Valiev R Z, Zhu Y T. Review on superior strength and enhanced ductility of metallic nanomaterials [J]. Prog. Mater. Sci., 2018, 94: 462 doi: 10.1016/j.pmatsci.2018.02.002
15	Jin Z Z, Zha M, Wang S Q, et al. Alloying design and microstructural control strategies towards developing Mg alloys with enhanced ductility [J]. J. Magnes. Alloys, 2022, 10: 1191 doi: 10.1016/j.jma.2022.04.002
16	Li S J, Jin J F, Song Y H, et al. Multimodal microstructure of Mg-Gd-Y alloy through an integrated simulation of “process-structure-property” [J]. Acta Metall. Sin., 2022, 58: 114
16	李少杰, 金剑锋, 宋宇豪等. “工艺-组织-性能”模拟研究Mg-Gd-Y合金混晶组织 [J]. 金属学报, 2022, 58: 114 doi: 10.11900/0412.1961.2021.00222
17	Wu X L, Yang M X, Yuan F P, et al. Heterogeneous lamella structure unites ultrafine-grain strength with coarse-grain ductility [J]. Proc. Natl. Acad. Sci. USA, 2015, 112: 14501 doi: 10.1073/pnas.1517193112
18	Zhang L, Chen Z, Wang Y H, et al. Fabricating interstitial-free steel with simultaneous high strength and good ductility with homogeneous layer and lamella structure [J]. Scr. Mater., 2017, 141: 111 doi: 10.1016/j.scriptamat.2017.06.044
19	Wang Y H, Kang J M, Peng Y, et al. Hall-Petch strengthening in Fe-34.5Mn-0.04C steel cold-rolled, partially recrystallized and fully recrystallized [J]. Scr. Mater., 2018, 155: 41 doi: 10.1016/j.scriptamat.2018.06.019
20	Luo X, Feng Z Q, Yu T B, et al. Transitions in mechanical behavior and in deformation mechanisms enhance the strength and ductility of Mg-3Gd [J]. Acta Mater., 2020, 183: 398 doi: 10.1016/j.actamat.2019.11.034
21	Xu C, Fan G H, Nakata T, et al. Deformation behavior of ultra-strong and ductile Mg-Gd-Y-Zn-Zr alloy with bimodal microstructure [J]. Metall. Mater. Trans., 2018, 49A: 1931
22	Go Y, Jo S M, Park S H, et al. Microstructure and mechanical properties of non-flammable Mg-8Al-0.3Zn-0.1Mn-0.3Ca-0.2Y alloy subjected to low-temperature, low-speed extrusion [J]. J. Alloys Compd., 2018, 739: 69 doi: 10.1016/j.jallcom.2017.12.229
23	Zhang H, Wang H Y, Wang J G, et al. The synergy effect of fine and coarse grains on enhanced ductility of bimodal-structured Mg alloys [J]. J. Alloys Compd., 2019, 780: 312 doi: 10.1016/j.jallcom.2018.11.229
24	Luo X, Huang T L, Wang Y H, et al. Strong and ductile AZ31 Mg alloy with a layered bimodal structure [J]. Sci. Rep., 2019, 9: 5428 doi: 10.1038/s41598-019-41987-4 pmid: 30932008
25	Zheng R X, Bhattacharjee T, Gao S, et al. Change of deformation mechanisms leading to high strength and large ductility in Mg-Zn-Zr-Ca Alloy with fully recrystallized ultrafine grained microstructures [J]. Sci. Rep., 2019, 9: 11702 doi: 10.1038/s41598-019-48271-5 pmid: 31406235
26	Zheng R X, Bhattacharjee T, Shibata A, et al. Simultaneously enhanced strength and ductility of Mg-Zn-Zr-Ca alloy with fully recrystallized ultrafine grained structures [J]. Scr. Mater., 2017, 131: 1 doi: 10.1016/j.scriptamat.2016.12.024
27	Luo X, Feng Z Q, Yu T B, et al. Microstructural evolution in Mg-3Gd during accumulative roll-bonding [J]. Mater. Sci. Eng., 2020, A772: 138763
28	Tsuji N, Ito Y, Saito Y, et al. Strength and ductility of ultrafine grained aluminum and iron produced by ARB and annealing [J]. Scr. Mater., 2002, 47: 893 doi: 10.1016/S1359-6462(02)00282-8
29	Huang X X, Hansen N, Tsuji N. Hardening by annealing and softening by deformation in nanostructured metals [J]. Science, 2006, 312: 249 pmid: 16614217
30	Kamikawa N, Huang X X, Tsuji N, et al. Strengthening mechanisms in nanostructured high-purity aluminium deformed to high strain and annealed [J]. Acta Mater., 2009, 57: 4198 doi: 10.1016/j.actamat.2009.05.017
31	Huang T L, Shuai L F, Wakeel A, et al. Strengthening mechanisms and Hall-Petch stress of ultrafine grained Al-0.3%Cu [J]. Acta Mater., 2018, 156: 369 doi: 10.1016/j.actamat.2018.07.006
32	Gao S, Chen M C, Joshi M, et al. Yielding behavior and its effect on uniform elongation in IF steel with various grain sizes [J]. J. Mater. Sci., 2014, 49: 6536 doi: 10.1007/s10853-014-8233-0
33	Tsuji N, Ogata S, Inui H, et al. Strategy for managing both high strength and large ductility in structural materials—Sequential nucleation of different deformation modes based on a concept of plaston [J]. Scr. Mater., 2020, 181: 35 doi: 10.1016/j.scriptamat.2020.02.001
34	Koike J, Kobayashi T, Mukai T, et al. The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys [J]. Acta Mater., 2003, 51: 2055 doi: 10.1016/S1359-6454(03)00005-3
35	Jain J, Cizek P, Hariharan K. Transmission electron microscopy investigation on dislocation bands in pure Mg [J]. Scr. Mater., 2017, 130: 133 doi: 10.1016/j.scriptamat.2016.11.035
36	Geng J, Chisholm M F, Mishra R K, et al. An electron microscopy study of dislocation structures in Mg single crystals compressed along [0001] at room temperature [J]. Philos. Mag., 2015, 95: 3910 doi: 10.1080/14786435.2015.1108531
37	Liu B Y, Liu F, Yang N, et al. Large plasticity in magnesium mediated by pyramidal dislocations [J]. Science, 2019, 365: 73 doi: 10.1126/science.aaw2843
38	Wu Z X, Curtin W A. The origins of high hardening and low ductility in magnesium [J]. Nature, 2015, 526: 62 doi: 10.1038/nature15364
39	Ahmad R, Yin B L, Wu Z X, et al. Designing high ductility in magnesium alloys [J]. Acta Mater., 2019, 172: 161 doi: 10.1016/j.actamat.2019.04.019
40	Wu Z X, Ahmad R, Yin B L, et al. Mechanistic origin and prediction of enhanced ductility in magnesium alloys [J]. Science, 2018, 359: 447 doi: 10.1126/science.aap8716 pmid: 29371467
41	Feng Z Q, Fu R, Lin C W, et al. TEM-based dislocation tomography: Challenges and opportunities [J]. Curr. Opin. Solid State Mater. Sci., 2020, 24: 100833 doi: 10.1016/j.cossms.2020.100833

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