等轴晶AZ80镁合金的全场晶体塑性模拟研究

doi:10.11896/cldb.22110077

Abstract
Figure/Table
References
Related Citation (2)

Download:

Full Text ( PDF ) (11893KB)
Export: BibTeX | EndNote (RIS)

Abstract The as-cast AZ80 magnesium alloy was subjected to solid solution treatment at 405℃ for 24 hours, ECAP experiments,and the micro-evolution of the sample during tensile deformation was investigated using full-field crystal plasticity simulation. More comprehensive field data such as relatively accurate microscopic deformation mechanism and twin evolution can be obtained more conveniently by crystal plasticity simulation, and the laws of different physical quantities can be summarized accordingly. These advantages are difficult to achieve in the experimental characterization process, and play an important role in tracking the deformation process of the sample.It was found that after ECAP, the sample would form a small grain uniform structure. The yield strength and tensile strength reached 215.1 MPa and 381.5 MPa, respectively, and the plasticity was 20.1%, which was significantly higher than that of as-cast AZ80 (yield strength 118.6 MPa, tensile strength 162.68 MPa, plasticity 6.6%). At the same time, the simulation can well predict the evolution of microstructure and deformation mechanism of magnesium alloy under different strain variables. It is found that with the increase of strain, Basinski effect will occur in the grains with tensile twins, and shear bands will be formed in the hard-oriented region. In the deformation process, the basal slip is the main deformation mechanism, and the contribution to the deformation decreases when the strain reaches 4%, which is mainly compensated by the prismatic slip.

Key words： AZ80 fine equiaxed crystals equal channel angular pressing(ECAP) full-field crystal plasticity simulation

Published: 10 May 2024 Online: 2024-05-13

CLC number:

TG146.22

Fund:National Natural Science Foundation of China (51901202).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	HU Hongbiao
	XU Shuai
	ZHANG Haiming
	JIN Zhaoyang

Cite this article:

HU Hongbiao,XU Shuai,ZHANG Haiming, et al. Full-field Crystal Plasticity Simulation of Equiaxed AZ80 Magnesium Alloy[J]. Materials Reports, 2024, 38(9): 22110077-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.22110077 OR http://www.mater-rep.com/EN/Y2024/V38/I9/22110077

1 Ding W J, Wu Y J, Peng L M, et al. Materials China, 2010, 29(08), 37 (in Chinese).
丁文江, 吴玉娟, 彭立明, 等. 中国材料进展, 2010, 29(08), 37.
2 Kainer K U, Hoppe R, Bohlen J, et al. Materials Science Forum, 2015, 4132(828-829), 15.
3 Yang Z, Li J P, Zhang J X, et al. Acta Metallurgica Sinica (English Letters), 2008, 21(5), 313.
4 Meng L G. Researches on formation mechanism of the LPSO structure, microstructures and mechanical properties of the Mg-Gd-Y-Zn-Zr alloys. Ph.D. Thesis, Dalian University of Technology, China, 2014 (in Chinese).
孟令刚. Mg-Gd-Y-Zn-Zr合金长周期结构形成机制与组织性能研究. 博士学位论文, 大连理工大学, 2014.
5 Kang Z X, Peng Y H, Lai X M, et al. The Chinses Journal of Nonferrous Metals, 2010, 20(04), 587 (in Chinese).
康志新, 彭勇辉, 赖晓明, 等. 中国有色金属学报, 2010, 20(04), 587.
6 Kubota K, Mabuchi M, Higashi K. Journal of Materials Science, 1999, 34(10), 2255.
7 Yamashita A, Horita Z, Langdon T G. Materials Science & Engineering A, 2001, 300(1-2), 142.
8 Janecek M, Popov M, Krieger M G, et al. Materials Science & Enginee-ring A, 2006, 462(01), 116.
9 Wang F, Sandlöbes S, Diehl M, et al. Acta Materialia, 2014, 80, 77.
10 Wang H, Boehlert C J, Wang Q D, et al. International Journal of Plasti-city, 2016, 84, 255.
11 Zhou G, Jain M K, Wu P, et al. International Journal of Plasticity, 2016, 79, 19.
12 Huang W, Huo Q, Fang Z, et al. Materials Science & Engineering A, 2018, 710, 289.
13 Zhang H, Liu J, Sui D, et al. International Journal of Plasticity, 2018, 100, 69.
14 Guery A, Hild F, Latourte F, et al. International Journal of Plasticity, 2016, 81, 249.
15 Abdolvand H, Majkut M, Oddershede J, et al. Acta Materialia, 2015, 93, 235.
16 Roters F, Diehl M, Shanthraj P, et al. Computational Materials Science, 2019, 158, 420.
17 Salem A A, Kalidindi S R, Semiatin S L. Acta Materialia, 2005, 53(12), 3495.
18 Agnew S R, Brown D W, Tomé C N. Acta Materialia, 2006, 54(18), 4841.
19 Tromans D. International Journal of Research & Reviews in Applied Sciences, 2011, 6(04), 462.
20 Knezevic M, Levinson A, Hars R, et al. Acta Materialia, 2010, 58(19), 6230.
21 Kobayashi T, Koike J, Yoshida Y, et al.Journal of the Japan Institute of Metals, 2003, 67(04), 149.
22 Basinski Z S, Szczerba M S, Niewczas M, et al. Fysiatrick A Reumatologick Vestník, 2017, 58(09), 198.