Role B4C Addition on Microstructure, Mechanical, and Wear Characteristics of Al-20% Mg2Si Hybrid Metal Matrix Composite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F21%3A00008643" target="_blank" >RIV/46747885:24620/21:00008643 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2076-3417/11/7/3047/pdf" target="_blank" >https://www.mdpi.com/2076-3417/11/7/3047/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app11073047" target="_blank" >10.3390/app11073047</a>

Result language

angličtina

Original language name

Role B4C Addition on Microstructure, Mechanical, and Wear Characteristics of Al-20% Mg2Si Hybrid Metal Matrix Composite

Original language description

In the current study, the effect of different B4C additions (0, 2.5, 5, and 10 wt%) on the microstructural, solidification behavior, mechanical, and tribological properties of Al-20%Mg2Si composite were studied by means of scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Vickers hardness, tensile, and dry sliding wear tests. The cooling curve thermal analysis (CCTA) approach was utilized to monitor the influence of B4C particles on the solidification behavior of Al-20%Mg2Si composite. The results revealed that the addition of B4C particles up to 10 wt% reduced the nucleation temperature (T-N) and growth temperature (T-G) of the primary Mg2Si phase. Moreover, the proper amount of B4C added to Al-20%Mg2Si composite has a significant effect on the microstructural alteration, mechanical, and tribological properties of the composite. The mean size of primary Mg2Si in Al-Mg2Si composite was 47 mu m, in which with the addition of 5 wt% B4C, the particle size decreased to 33 mu m. The highest UTS (217 MPa) and El% (7%) was achieved in Al-20%Mg2Si-5% B4C hybrid composite. The cast Al-20%Mg2Si composite revealed the brittle mode of fracture with some cleavage characterization, in which with the addition of 5% B4C, the fracture mode altered to a more ductile fracture. The wear results revealed that the Al-20%Mg2Si-5% B4C hybrid composite has the highest wear resistance with the lowest wear rate (0.46 mm(3)/Km) and friction coefficient (mu = 0.52) under 20 N applied load compared to other fabricated composites with mild abrasion as the governed wear mechanism.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21100 - Other engineering and technologies

Project

<a href="/en/project/EF16_025%2F0007293" target="_blank" >EF16_025/0007293: Modular platform for autonomous chassis of specialized electric vehicles for freight and equipment transportation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Sciences

ISSN

2076-3417

e-ISSN

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Volume of the periodical

11

Issue of the periodical within the volume

7

Country of publishing house

CH - SWITZERLAND

Number of pages

22

Pages from-to

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UT code for WoS article

000638354000001

EID of the result in the Scopus database

2-s2.0-85103655560