An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy

Tian, Hexin; Zhao, Fachang; Ma, Dongmei; Zhao, Xingming; Meng, Jingran; Zhang, Guangan; Wu, Fufa

doi:10.3390/met14111295

Open AccessArticle

An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy

by

Hexin Tian

^†,

Fachang Zhao

^†,

Dongmei Ma

,

Xingming Zhao

^*

,

Jingran Meng

,

Guangan Zhang

and

Fufa Wu

^*

Material Processing Engineering, School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121001, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work.

Metals 2024, 14(11), 1295; https://doi.org/10.3390/met14111295

Submission received: 19 October 2024 / Revised: 8 November 2024 / Accepted: 13 November 2024 / Published: 16 November 2024

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Abstract

The Al-Si alloy prepared by the traditional powder metallurgy method has the problems of difficult sintering and low mechanical properties. In this paper, rotary extrusion combined with rapid solidification/powder metallurgy technology (RS/PM) is proposed and designed to produce an Al-10Si alloy. In subsequent sintering at different temperatures, better metallurgical bonding between particles can be achieved to fulfil the aim of improving the mechanical properties of the material. Additionally, the continuous preparation of materials can be achieved. Finally, it is verified that the density of the Al-10Si alloy sintered at 525 °C is 2.61 g/cm³, reaching 97.0% of the theoretical density, and the tensile strength reaches 336 MPa, which is much higher than that of the alloy prepared by the traditional casting method and powder metallurgy method.

Keywords: powder technology; metals and alloys; Al-Si alloy; rotary extrusion; sintering; grain boundaries

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MDPI and ACS Style

Tian, H.; Zhao, F.; Ma, D.; Zhao, X.; Meng, J.; Zhang, G.; Wu, F. An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy. Metals 2024, 14, 1295. https://doi.org/10.3390/met14111295

AMA Style

Tian H, Zhao F, Ma D, Zhao X, Meng J, Zhang G, Wu F. An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy. Metals. 2024; 14(11):1295. https://doi.org/10.3390/met14111295

Chicago/Turabian Style

Tian, Hexin, Fachang Zhao, Dongmei Ma, Xingming Zhao, Jingran Meng, Guangan Zhang, and Fufa Wu. 2024. "An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy" Metals 14, no. 11: 1295. https://doi.org/10.3390/met14111295

APA Style

Tian, H., Zhao, F., Ma, D., Zhao, X., Meng, J., Zhang, G., & Wu, F. (2024). An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy. Metals, 14(11), 1295. https://doi.org/10.3390/met14111295

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An Improved Process for Solving the Sintering Problem of Al-Si Alloy Powder Metallurgy

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