Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method

Thermal deformation can improve the properties of aluminum matrix composites (AMCs) prepared by powder metallurgy (P/M) due to the dense and uniform microstructures. And the final microstructure of the AMCs is related to the dynamic recrystallization (DRX) behavior and nucleation mechanism in the th...

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Main Authors: Song Yahu, Wang Aiqin, Ma Douqin, Xie Jingpei, Wang Wenyan
Format: Article
Language:English
Published: De Gruyter 2023-02-01
Series:Nanotechnology Reviews
Subjects:
Online Access:https://doi.org/10.1515/ntrev-2022-0506
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author Song Yahu
Wang Aiqin
Ma Douqin
Xie Jingpei
Wang Wenyan
author_facet Song Yahu
Wang Aiqin
Ma Douqin
Xie Jingpei
Wang Wenyan
author_sort Song Yahu
collection DOAJ
description Thermal deformation can improve the properties of aluminum matrix composites (AMCs) prepared by powder metallurgy (P/M) due to the dense and uniform microstructures. And the final microstructure of the AMCs is related to the dynamic recrystallization (DRX) behavior and nucleation mechanism in the thermal forming process. In this regard, the hot compression tests of dual-scale SiC particles reinforced A356 (SiCp/A356) composites prepared by P/M method were carried out at temperatures of 460–520°C and strain rates of 0.01–5 s−1 on a thermal simulation tester. The corresponding microstructure evolution was analyzed by electron back-scattered diffraction and transmission electron microscopy. The results indicated that the stress–strain curve was a typical DRX unimodal stress curve. The comprehensive influences of the strain rate and deformation temperature on the stress were investigated using the Zener–Hollomon parameter (Z), where the deformation activation energy was 443.204 kJ/mol. The DRX critical strain model and DRX volume fraction model were established. DRX behavior of the SiCp/A356 composites was sensitive to the deformation temperatures and strain rates. The micro and nano SiCp can promote the DRX nucleation of Al matrix due to the particle-stimulated nucleation.
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spelling doaj.art-f737221db35a4a4fa754cca250e0e5062023-04-11T17:07:18ZengDe GruyterNanotechnology Reviews2191-90972023-02-01121151730910.1515/ntrev-2022-0506Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M methodSong Yahu0Wang Aiqin1Ma Douqin2Xie Jingpei3Wang Wenyan4School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, ChinaThermal deformation can improve the properties of aluminum matrix composites (AMCs) prepared by powder metallurgy (P/M) due to the dense and uniform microstructures. And the final microstructure of the AMCs is related to the dynamic recrystallization (DRX) behavior and nucleation mechanism in the thermal forming process. In this regard, the hot compression tests of dual-scale SiC particles reinforced A356 (SiCp/A356) composites prepared by P/M method were carried out at temperatures of 460–520°C and strain rates of 0.01–5 s−1 on a thermal simulation tester. The corresponding microstructure evolution was analyzed by electron back-scattered diffraction and transmission electron microscopy. The results indicated that the stress–strain curve was a typical DRX unimodal stress curve. The comprehensive influences of the strain rate and deformation temperature on the stress were investigated using the Zener–Hollomon parameter (Z), where the deformation activation energy was 443.204 kJ/mol. The DRX critical strain model and DRX volume fraction model were established. DRX behavior of the SiCp/A356 composites was sensitive to the deformation temperatures and strain rates. The micro and nano SiCp can promote the DRX nucleation of Al matrix due to the particle-stimulated nucleation.https://doi.org/10.1515/ntrev-2022-0506dual-scalesicp/a356 compositesdynamic recrystallizationnucleation mechanism
spellingShingle Song Yahu
Wang Aiqin
Ma Douqin
Xie Jingpei
Wang Wenyan
Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
Nanotechnology Reviews
dual-scale
sicp/a356 composites
dynamic recrystallization
nucleation mechanism
title Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
title_full Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
title_fullStr Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
title_full_unstemmed Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
title_short Dynamic recrystallization behavior and nucleation mechanism of dual-scale SiCp/A356 composites processed by P/M method
title_sort dynamic recrystallization behavior and nucleation mechanism of dual scale sicp a356 composites processed by p m method
topic dual-scale
sicp/a356 composites
dynamic recrystallization
nucleation mechanism
url https://doi.org/10.1515/ntrev-2022-0506
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