Next Article in Journal
Tribological Behaviour of Enamel Coatings Created by a Prototype Device for Local Repair of Inorganic Surfaces
Next Article in Special Issue
Experimental Investigation on the Surface Formation Mechanism of NdFeB during Diamond Wire Sawing
Previous Article in Journal
Impact of Graphene Monolayer on the Performance of Non-Conventional Silicon Heterojunction Solar Cells with MoOx Hole-Selective Contact
Previous Article in Special Issue
Dispersion and Polishing Mechanism of a Novel CeO2-LaOF-Based Chemical Mechanical Polishing Slurry for Quartz Glass
 
 
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Microstructure and Mechanical Properties of Nanoparticulate Y2O3 Modified AlSi10Mg Alloys Manufactured by Selective Laser Melting

1
Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
2
School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
3
School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
4
Yantai Research Institute and Graduate School of Harbin Engineering University, Yantai 264006, China
*
Authors to whom correspondence should be addressed.
Materials 2023, 16(3), 1222; https://doi.org/10.3390/ma16031222
Submission received: 13 December 2022 / Revised: 25 January 2023 / Accepted: 25 January 2023 / Published: 31 January 2023

Abstract

AlSi10Mg has a good forming ability and has been widely accepted as an optimal material for selective laser melting (SLM). However, the strength and elongation of unmodified AlSi10Mg are insufficient, which limits its application in the space industry. In this paper, yttrium oxide (Y2O3) nanoparticles modified AlSi10Mg composites that were manufactured using SLM. The effects of Y2O3 nanoparticles (0~2 wt.% addition) on the microstructure and mechanical properties of AlSi10Mg alloys were investigated. An ultimate tensile strength of 500.3 MPa, a yield strength of 322.3 MPa, an elongation of 9.7%, a good friction coefficient of 0.43, and a wear rate of (3.40 ± 0.09) ×10−4 mm3·N−1·m−1 were obtained with the addition of 0.5 wt.% Y2O3 nanoparticles, and all these parameters were higher than those of the SLMed AlSi10Mg alloy. The microhardness of the composite with 1.0 wt.% Y2O3 reached 145.6 HV0.1, which is an increase of approximately 22% compared to the unreinforced AlSi10Mg. The improvement of tensile properties can mainly be attributed to Orowan strengthening, fine grain strengthening, and load-bearing strengthening. The results show that adding an appropriate amount of Y2O3 nanoparticles can significantly improve the properties of the SLMed AlSi10Mg alloy.
Keywords: selective laser melting; Y2O3 nanoparticles; AlSi10Mg alloy; microstructure; mechanical properties selective laser melting; Y2O3 nanoparticles; AlSi10Mg alloy; microstructure; mechanical properties

Share and Cite

MDPI and ACS Style

Zhang, F.; Zhang, Z.; Gu, Q.; Hou, X.; Meng, F.; Zhuang, X.; Li, L.; Liu, B.; Feng, J. Microstructure and Mechanical Properties of Nanoparticulate Y2O3 Modified AlSi10Mg Alloys Manufactured by Selective Laser Melting. Materials 2023, 16, 1222. https://doi.org/10.3390/ma16031222

AMA Style

Zhang F, Zhang Z, Gu Q, Hou X, Meng F, Zhuang X, Li L, Liu B, Feng J. Microstructure and Mechanical Properties of Nanoparticulate Y2O3 Modified AlSi10Mg Alloys Manufactured by Selective Laser Melting. Materials. 2023; 16(3):1222. https://doi.org/10.3390/ma16031222

Chicago/Turabian Style

Zhang, Fuxu, Zhenyu Zhang, Qinming Gu, Xuezhang Hou, Fanning Meng, Xuye Zhuang, Li Li, Bingxin Liu, and Junyuan Feng. 2023. "Microstructure and Mechanical Properties of Nanoparticulate Y2O3 Modified AlSi10Mg Alloys Manufactured by Selective Laser Melting" Materials 16, no. 3: 1222. https://doi.org/10.3390/ma16031222

APA Style

Zhang, F., Zhang, Z., Gu, Q., Hou, X., Meng, F., Zhuang, X., Li, L., Liu, B., & Feng, J. (2023). Microstructure and Mechanical Properties of Nanoparticulate Y2O3 Modified AlSi10Mg Alloys Manufactured by Selective Laser Melting. Materials, 16(3), 1222. https://doi.org/10.3390/ma16031222

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop