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Article

Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting

by 1,2, 1,2,*, 1,2, 1,2, 1,2, 1,2, 1,2 and 1,2
1
National Key Laboratory for Precision Hot Processing of Metals, Harbin 150001, China
2
School of Materials Science and Engineering, Harbin Institute of Technology, No. 92 Xi Dazhi Street, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Academic Editor: Theodore E. Matikas
Materials 2021, 14(23), 7261; https://doi.org/10.3390/ma14237261
Received: 15 October 2021 / Revised: 19 November 2021 / Accepted: 24 November 2021 / Published: 27 November 2021
(This article belongs to the Special Issue Study on Plastic Processing Technologies for Light-Weight Metals)
The poor formability of high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting is an important factor restricting its further development and application. Currently, there are no reports on the secondary forgeability of aluminum matrix composites of original squeeze casting, although some papers on its first forgeability are published. The secondary forgeability is very important for most metals. This study aims to investigate the secondary forgeability of aluminum matrix composites. In this study, the secondary upsetting experiments of 20 vol% SiCw + Al18B4O33w/2024Al composites, treated by the original squeeze casting and extrusion, were carried out. The first upsetting deformation is close to the forming limit, the secondary upsetting deformation under the same deformation conditions was carried out to investigate the secondary forgeability. The experimental results show that, unlike aluminum alloys, the 20 vol% SiCw + Al18B4O33w/2024Al composites at the original squeeze casting and extrusion states have no secondary forgeability due to the whisker rotating and breaking during the secondary upsetting. The high volume fraction whisker reinforced aluminum matrix composites of original squeeze casting cannot be formed by the multiple-forging method since the cavities and cracks caused by whisker fracture continue to expand during secondary processing, which leads to further extension of macroscopic cracks. View Full-Text
Keywords: whiskers; aluminum matrix composites; forging; secondary forgeability whiskers; aluminum matrix composites; forging; secondary forgeability
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MDPI and ACS Style

Xu, S.; Yuan, L.; Wang, L.; Li, J.; Xu, F.; Zheng, Z.; Shan, D.; Guo, B. Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting. Materials 2021, 14, 7261. https://doi.org/10.3390/ma14237261

AMA Style

Xu S, Yuan L, Wang L, Li J, Xu F, Zheng Z, Shan D, Guo B. Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting. Materials. 2021; 14(23):7261. https://doi.org/10.3390/ma14237261

Chicago/Turabian Style

Xu, Shucong, Lin Yuan, Lei Wang, Jinyu Li, Fuchang Xu, Zhenzhu Zheng, Debin Shan, and Bin Guo. 2021. "Research on the Secondary Forgeability of High Volume Fraction Whisker Reinforced Aluminum Matrix Composites of Original Squeeze Casting" Materials 14, no. 23: 7261. https://doi.org/10.3390/ma14237261

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