Al7Si0.5Mg合金喷丸处理微观组织形貌及腐蚀行为研究

doi:10.11896/cldb.24030204

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (35375KB)
Export: BibTeX | EndNote (RIS)

Abstract The effects of different shot peening speeds on corrosion resistance of Al7Si0.5Mg aluminum alloy were investigated in this work. The shot peened alloy specimens were subjected to electrochemical test and immersion corrosion in 3.5%NaCl solution. The phase composition, surface morphology, deformed layer and corrosion products of the corroded alloy were characterized by XRD, SEM, ultra-deep microscope and EBSD. The results show that after shot peening, obvious plastic deformation layer and submicron grain appear on the surface of the alloy. The maximum thickness of the deformation layer is 20 μm when the shot peening speed is 50 m/s. The i_corr of the untreated sample was 64.628 μA/cm², and the radius of the capacitor arc was the minimum. While the i_corr of the sample treated with a shot peening speed of 50 m/s is 16.094 μA/cm² and the radius of the capacitor arc is maximum. Immersion in 3.5%NaCl solution for 480 h, the sample treated with a shot peening speed of 50 m/s shows a relatively shallow corrosion pit, showing relatively excellent corrosion resistance.

Key words： Al7Si0.5Mg aluminun alloy shot peening treatment grain refine corrosion behavior

Published: 10 May 2025 Online: 2025-04-28

CLC number:

TG66

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	QIN Chuanguang
	JIANG Bo
	LIU Naizhi
	WANG Ye
	HU Maoliang
	XU Hongyu
	JI Zesheng
	SHANG Jinchi

Cite this article:

QIN Chuanguang,JIANG Bo,LIU Naizhi, et al. Surface Microstructure Characterization and Corrosion Behavior of Al7Si0.5Mg Aluminum Alloy After Shot Peening Treatment[J]. Materials Reports, 2025, 39(9): 24030204-7.

URL:

https://www.mater-rep.com/EN/10.11896/cldb.24030204 OR https://www.mater-rep.com/EN/Y2025/V39/I9/24030204

1 Miller W S, Zhuang L, Bottema J, et al. Materials Science and Enginee-ring: A, 2000, 280 (1), 37.
2 Cardinale M, Macci D, Luciano G, et al. Journal of Alloys and Compounds, 2017, 695, 2180.
3 Ma Y K, Liu Y N, Wang M X. Materials Chemistry and Physics, 2022, 276, 276.
4 Dang B, Li Y B, Liu F, et al. Materials & Design, 2014, 57, 73.
5 Liu Z W, Wang X M, Han Q Y, et al. Powder Technol, 2014, 253, 751.
6 Pourbahari B, Emamy M, Materials & Design, 2016, 94, 111.
7 Bao L, Li K, Zheng J Y, et al. Surface & Coatings Technology, 2022, 440, 440.
8 Rao A, Vasu V, Govindaraju M, et al. The Transactions of Nonferrous Metals Society of China, 2016, 26, 1447.
9 Peral L B, Zafra A, Bagherifard S, et al. Surface and Coatings Technology, 2020, 401, 126285.
10 Zhang Q, Duan B B, Zhang Z Q, et al. Journal of Materials Research and Technology, 2021, 11, 1090.
11 Yang X W, Dong X R, Li W Y, et al. Journal of Materials Research and Technology, 2020, 9(2), 1559.
12 Zhu K Y, Jiang C H, Li Z Q, et al. Materials & Design, 2016, 107, 333.
13 Daniel K, Filip P, Branislav H, et al. Surface and Coatings Technology, 2022, 446, 128773.
14 Kovacı H, Bozkurt Y B, Yetim A F, et al. Surface and Coatings Technology, 2019, 360, 78.
15 Kumar P, Mahobia G S, Mandal S, et al. Corrosion Science, 2021, 189, 109597.
16 Chen B, Huang B, Liu H, et al. Journal of Materials Research, 2014, 29(24), 3002.
17 ebrowski R, Walczak M, Klepka T, et al. Eksploatacja i Niezawodność-Maintenance and Reliability, 2018, 21(1), 46.
18 Huang H, Niu J, Xing X, et al. Coatings, 2022, 12(5), 629.
19 Lv Y T, Zhao B J, Zhang H B, Su C J, et al. Materials Transactions, 2019, 60(8), 1629.
20 Žagar S, Mrvar P, Grum J, et al. Materials, 2022, 15, 3094.
21 Cullity B, Stock S, Elements of X-ray diffraction, Pearson Education Li-mited Third Edition, Published by Pearson, US, 2014, pp. 451.
22 Li Z Y, Yu H Y, Sun D B, Corrosion Science, 2021, 183, 109306.
23 Zhang H, Gu D D, Dai D H, et al. Applied Surface Science, 2020, 509, 145330.
24 Sun Q Q, Han Q Y, Xu R, et al. Corrosion Science, 2018, 130, 218.
25 Lee H, Kim D, Jung J, et al. Corrosion Science, 2009, 51, 2826.
26 Walter R, Kannan M, Materials & Design, 2011, 32, 2350.
27 Hu W N, Peng X Y, Ding Y, et al. Surface and Coatings Technology, 2022, 434, 128208.
28 Pandey V, Singh J K, Chattopadhyay K, et al. Journal of Alloys and Compounds, 2017, 723, 826.