Zn-Al合金超声空化数值模拟和细晶强化机理研究

doi:10.11896/cldb.21090048

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (9048KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to study the effect of ultrasonic on the microstructure and properties of ZnAl8 alloy, ultrasonic melting experiments with different po-wer were carried out in the molten pool of ZnAl8 alloy at 390 ℃. In combination with numerical analysis method to solve the KM-polytropic and Mettin equations, the growth law and cavitation effect of ultrasonic cavitation and bubble group in the molten pool of ZnAl8 alloy were studied.The results showed that when ultrasound was 700 W, the application of ultrasonic vibration in the solid-liquid coexistence zone at 390 ℃ effectively eliminated the dendritic structure,the pulse pressure generated by ultrasonic reached more than 200 MPa, the bubble wall temperature reached as high as 3 200 K, and the effective crushing and pre-precipitated α(Al) phase were carried out and the fragments became nucleation points of crystallization. After solidification, uniform α(Al) phase microstructures were obtained. The elongation after fracture of the as-cast alloy was 13.62%, and the tensile strength reached 232 MPa, in contrast to conventional melt casting techniques without ultrasonic, the plasticity and strength of the alloy were increased by 48% and 12%, respectively.

Key words： ultrasonic numerical analysis ultrasonic cavitation zinc aluminum alloy

Published: 10 April 2023 Online: 2023-04-07

CLC number:

TG425+.1

Fund:Innovation Training Program for College Students of GDUT (xi2022118450638).

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHEN Haiyan
	WANG Chao
	PAN Meishi
	JI Xixi
	ZENG Yue
	AN Yibo
	ZOU Yancheng

Cite this article:

CHEN Haiyan,WANG Chao,PAN Meishi, et al. Numerical Simulation of Ultrasonic Cavitation in Zn-Al Alloy and Study on Its Grain Refinement and Strengthening Mechanism[J]. Materials Reports, 2023, 37(7): 21090048-6.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.21090048 OR http://www.mater-rep.com/EN/Y2023/V37/I7/21090048

1 Qian W, Lin Z, Chen X G, et al. Materials and Design, 2016, 107, 41.
2 Peng H P, Li Z W, Zhu J Q, et al. Transactions of Nonferrous Metals Society of China, 2020, 30(3), 595.
3 Liu X, Xue L Q, Chen S Y, et al. Foundry Technology, 2016, 37(8), 1680 (in Chinese).
刘学, 薛力强, 陈淑英, 等. 铸造技术, 2016, 37(8), 1680.
4 Mao F, Ou L M, Qiao Y F, et al. Rare Metals, 2021, 45(4), 393 (in Chinese).
毛丰, 欧黎明, 乔永枫, 等. 稀有金属, 2021, 45(4), 393.
5 Xiong J J, Yan H, Zhong S G, et al. Metals, 2019, 9(1), 108.
6 Jiang H F. An investigation on modification of zinc-aluminum alloy used for die casting. Master's Thesis, Central South University, China, 2013(in Chinese).
蒋浩帆. 压铸用锌铝合金的变质处理研究. 硕士学位论文, 中南大学, 2013.
7 Li H, Li C, Li Z X. Journal of Materials Engineering, 2017, 45(5), 118(in Chinese).
李红, 李灿, 栗卓新. 材料工程, 2017, 45(5), 118.
8 Jiang J F, Wang Y. Materials Science & Engineering A, 2015, 639, 350.
9 Li S M, Li C Y, Liu Y, et al. Journal of Chongqing University of Technology(Natural Science), 2022, 36(5), 12210(in Chinese).
李上民, 李春雨, 刘运, 等. 重庆理工大学学报(自然科学版), 2022, 36(5), 12210.
10 Das A, Kotadia H R. Materials Chemistry and Physics, 2011, 125, 853.
11 Patel B, Chaudhari G P, Bhingole P P. Materials Letters, 2012, 66(1), 335.
12 Kong W, Cang D Q, Wang W B. Science Technology and Engineering, 2010, 10(35), 8696(in Chinese).
孔为, 苍大强, 王文波. 科学技术与工程, 2010, 10(35), 8696.
13 Li X Q, Deng J, Lin S. Special Casting & Nonferrous Alloys, 2013, 33(5), 395 (in Chinese).
李晓谦, 邓静, 林森. 特种铸造及有色合金, 2013, 33(5), 395.
14 Chen H Y, Chen Z L, La Z M, et al. Journal of Materials Processing Technology, 2019, 266, 619.
15 Maeda K, Colonius T. Journal of Fluid Mechanics, 2019, 862, 1105.
16 Chen H Y, Zeng Y, Li Y, et al. Journal of Materials Engineering, 2021, 49(7), 133 (in Chinese).
陈海燕, 曾越, 李艺, 等. 材料工程, 2021, 49(7), 133.
17 Straumal B B, Mazilkin A A, Sauvage X, et al. Physical Metallurgy and Heat Treatment, 2014, 6, 44.
18 Feng X H, Zhao F Z, Jia H M, et al. Ultrasonics Sonochemistry, 2018, 4, 113.
19 Eskin G I, Eskin D G. Ultrasonic treatment of light alloy metals, CRC Press, Boca Raton, 2015, pp. 320.
20 Keller J B, Miksis M. Journal of the Acoustical Society of America, 1980, 68(2), 628.