Abstract
In this paper, the TiB2-reinforced Al–7Si–Cu–Mg composites manufactured by casting and arc addition were studied. TiB2 particles were nano-sized or submicron-sized and their morphologies were regular and round, thus they improved the mechanical properties of aluminum-based composite. Two different processes were compared in the microstructure and properties of aluminum-based composite. Through the contrast of SEM and EDS analysis, it was found that the distribution of alloying elements in the wire arc additive manufacturing (WAAM) TiB2-reinforced Al–Si-based composites was more dispersed, which reinforced the solid solubility. The size of TiB2 particles decreased and the distribution was more uniform. The hardness increased to 86.2HV10 as compared with as-cast state. The silicon phase of the as-cast sample was large and distributed continuously along the grain boundary, while the silicon phase in the as-deposited microstructure was dispersed and its size reduced to 2 µm. The heat treatment of WAAM Al–Si composites was carried out, and two sets of heat treatment mechanisms, aging and solution post-aging, were compared. The hardness of the material rose to 127HV10 after single aging, and it was improved to 139HV10 under solid solution post-aging condition. The reinforced Al–Si-based composites were found to achieve a supersaturated solution state through WAAM.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
S. Herranz, F.J. Campa, L.N.L. de Lacalle et al., The milling of airframe components with low rigidity: a general approach to avoid static and dynamic problems. Proc. Inst. Mech. Eng. Part B J. Eng. Manuf. 219(11), 789–801 (2005)
J, Xiong, Forming Characteristics in Multi-layer Single-Bead GMA Additive Manufacturing and Acurate Control for Deposition Dimension (Harbin Institute of Technology, Harbin, 2014)
W.L. Liu, Rapid prototyping technology of Al-alloy parts by AC-TIG (Tianjin University, Tianjin, 2007)
J.H. Ouyang, H. Wang, R. Kovacevic et al., Rapid prototyping of 5356-aluminum aloy based on variable polarity gas tungsten arc welding process control and microstructure. Mater. Manuf. Process. 17(1), 103–124 (2002)
J. Bo, J. Wang, J. Shi et al., Microstructure and mechanical properties of 4043 aluminum alloy thin wall parts manufactured by TIG WAAM. Welding 10, 23–26 (2015)
B. Cong, J. Ding, S. Williams, The influence of wire properties on the quality and performance of wire+arc additive manufactured aluminium parts. Adv. Manuf. Technol. 76, 1593–1606 (2015)
J. Gu, J. Ding, S.W. Williams, H. Gu, J. Bai, Y. Zhai, P. Ma, The strengthening effect of inter-layer cold working and post-deposition heat treatment on the additively manufactured Al–6.3Cu alloy. Mater. Sci. Eng., A 651, 18–26 (2016)
J.L. Gu, J.L. Ding, B.Q. Cong et al., The influence of wire properties on the quality and performance of wire+arc additive manufactured aluminium parts. Adv. Mater. Res. 1081, 210–214 (2014)
C. Huang, S. Huang, F. Liu, Additive manufacturing technology of Metal material. 2, 37 (2016)
Y.M. Zhang, Y. Chen, P. Li, Weld deposition-based rapid prototyping: a preliminary study. J. Mater. Process. Technol. 135, 347–357 (2003)
H.J. Wang, W.H. Jiang, J.H. Ouyang et al., Rapid prototyping of 4043 Al-alloy parts by VP-GTAW. J. Mater. Process. Technol. 148, 93–102 (2004)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Deng, Y., Li, X., Wu, L., Yang, Q., Chen, Y. (2019). Microstructure and Performance of WAAM TiB2-Reinforced Al–Si-Based Composites. In: Han, Y. (eds) Physics and Engineering of Metallic Materials. CMC 2018. Springer Proceedings in Physics, vol 217. Springer, Singapore. https://doi.org/10.1007/978-981-13-5944-6_31
Download citation
DOI: https://doi.org/10.1007/978-981-13-5944-6_31
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-5943-9
Online ISBN: 978-981-13-5944-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)