Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing

Magnesium metal matrix composites (Mg MMCs) possess relatively more favorable mechanical properties than Mg alloys because they add reinforcements, such as small particles, short fibers, or continuous fibers, into the matrix. This study investigated the influence of adding different sizes and percen...

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Main Authors: Weigang Zhao, Song-Jeng Huang, Yi-Jhang Wu, Cheng-Wei Kang
Format: Article
Language:English
Published: MDPI AG 2017-08-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/7/8/293
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author Weigang Zhao
Song-Jeng Huang
Yi-Jhang Wu
Cheng-Wei Kang
author_facet Weigang Zhao
Song-Jeng Huang
Yi-Jhang Wu
Cheng-Wei Kang
author_sort Weigang Zhao
collection DOAJ
description Magnesium metal matrix composites (Mg MMCs) possess relatively more favorable mechanical properties than Mg alloys because they add reinforcements, such as small particles, short fibers, or continuous fibers, into the matrix. This study investigated the influence of adding different sizes and percentages of silicon carbide particles (SiCp) for manufacturing AZ61/SiCp Mg alloy composite extrusion plates on the mechanical properties of SiCp. We also examined the impact and discussed the evolution of microstructures, changes of material strength, ductility, formability, and other mechanical properties caused by a subsequent annealing treatment after plate extrusion. The results showed that the mechanical properties of plates can be improved by adding reinforcement particles. The effects of grain refinement were as follows: the smaller the size of the reinforcement particles, the greater the enhancement of mechanical properties. Among them, the AZ61/1 wt % SiCp/50 nm MMC plate had relatively excellent mechanical properties. Specifically, the ultimate tensile strength, yielding strength, ductility, hardness, and grain size of the plate were 331 MPa, 136.4 MPa, 43.1%, 62 HV, and 3.3 μm, respectively. Compared with SiCp-free Mg MMC plates, these properties of the AZ61/1 wt % SiCp/50 nm MMC plate were enhanced (or refined) by 6.4%, 3.4%, 83.4%, 2%, and 13.2%, respectively; by contrast, formability decreased by 9.1%.
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spelling doaj.art-736301a54dc74ac38767fb22aedce0252022-12-21T18:22:03ZengMDPI AGMetals2075-47012017-08-017829310.3390/met7080293met7080293Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent AnnealingWeigang Zhao0Song-Jeng Huang1Yi-Jhang Wu2Cheng-Wei Kang3College of Material Engineering, Fujian Agricultural and Forestry University, No. 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, ChinaDepartment of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43 Keelung Rd. Sec. 4, Taipei 10607, TaiwanDepartment of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43 Keelung Rd. Sec. 4, Taipei 10607, TaiwanDepartment of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43 Keelung Rd. Sec. 4, Taipei 10607, TaiwanMagnesium metal matrix composites (Mg MMCs) possess relatively more favorable mechanical properties than Mg alloys because they add reinforcements, such as small particles, short fibers, or continuous fibers, into the matrix. This study investigated the influence of adding different sizes and percentages of silicon carbide particles (SiCp) for manufacturing AZ61/SiCp Mg alloy composite extrusion plates on the mechanical properties of SiCp. We also examined the impact and discussed the evolution of microstructures, changes of material strength, ductility, formability, and other mechanical properties caused by a subsequent annealing treatment after plate extrusion. The results showed that the mechanical properties of plates can be improved by adding reinforcement particles. The effects of grain refinement were as follows: the smaller the size of the reinforcement particles, the greater the enhancement of mechanical properties. Among them, the AZ61/1 wt % SiCp/50 nm MMC plate had relatively excellent mechanical properties. Specifically, the ultimate tensile strength, yielding strength, ductility, hardness, and grain size of the plate were 331 MPa, 136.4 MPa, 43.1%, 62 HV, and 3.3 μm, respectively. Compared with SiCp-free Mg MMC plates, these properties of the AZ61/1 wt % SiCp/50 nm MMC plate were enhanced (or refined) by 6.4%, 3.4%, 83.4%, 2%, and 13.2%, respectively; by contrast, formability decreased by 9.1%.https://www.mdpi.com/2075-4701/7/8/293magnesium metal matrix composites (Mg MMCs)extrusionannealingmechanical properties
spellingShingle Weigang Zhao
Song-Jeng Huang
Yi-Jhang Wu
Cheng-Wei Kang
Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
Metals
magnesium metal matrix composites (Mg MMCs)
extrusion
annealing
mechanical properties
title Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
title_full Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
title_fullStr Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
title_full_unstemmed Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
title_short Particle Size and Particle Percentage Effect of AZ61/SiCp Magnesium Matrix Micro- and Nano-Composites on Their Mechanical Properties Due to Extrusion and Subsequent Annealing
title_sort particle size and particle percentage effect of az61 sicp magnesium matrix micro and nano composites on their mechanical properties due to extrusion and subsequent annealing
topic magnesium metal matrix composites (Mg MMCs)
extrusion
annealing
mechanical properties
url https://www.mdpi.com/2075-4701/7/8/293
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