ABSTRACT
This
study investigates the machinability of a novel composite material comprising
aluminum matrix reinforced with rice husk ash (RHA) particulates. The growing
demand for sustainable materials and the abundance of rice husk ash, an
agricultural waste product, have inspired the development of this composite,
aiming to enhance the mechanical properties and promote its use in various
engineering applications. The machinability ofthis composite is a critical
aspect, as it determines its feasibility for practical applications. This study
was carried out to produce and analyse the properties of Aluminium Alloy-Rice
Husk Ash composites. Rice husk ash (RHA) with high silica content of up to
97.095% was used for the study with the RHA varied from 0vol% - 30vol% at
intervals of 5vol% in the aluminium alloy as reinforcement. The density and
some mechanical properties of the composites including tensile strength, impact
strength, hardness and fatigue strength were investigated. The results showed
that the density ofthe composite decreases with the percentage increase
ofreinforcement from 2840.242 kgm3 tor the control sample to 2402.899 kgm-3 for
30vol% RHA. The Ultimate Tensile Strength (UTS) varies from 164.374 MNm-2 at 0%
RHA to 176.837 MNm-2 with maximum value at 10% RHA, impact strength values
varies from 84.020kJm-2 at 0% RHA to 155.244 kJm-2 with maximum value at 10%
RHA, hardness value varies from 70.467 RHV at 0% RHA to 109.367 RHV with
maximum value at 25% RHA and fatigue strength varies from 0.224x1 OUcycles to
2.582x10_ cycles with maximum cycle at 20% RHA. The results of analysis of
variance showed that there are significant differences among the means of each
property of the composites at different levels ofreplacement of the ash
addition (P<0.05).
CHIMA, L (2024). Machinability Studies Of Aluminium Rice Husk Ash Particulates Composite:- Chima Lucky. Repository.mouau.edu.ng: Retrieved Nov 10, 2024, from https://repository.mouau.edu.ng/work/view/machinability-studies-of-aluminium-rice-husk-ash-particulates-composite-chima-lucky-7-2
LUCKY, CHIMA. "Machinability Studies Of Aluminium Rice Husk Ash Particulates Composite:- Chima Lucky" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 10 Oct. 2024, https://repository.mouau.edu.ng/work/view/machinability-studies-of-aluminium-rice-husk-ash-particulates-composite-chima-lucky-7-2. Accessed 10 Nov. 2024.
LUCKY, CHIMA. "Machinability Studies Of Aluminium Rice Husk Ash Particulates Composite:- Chima Lucky". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 10 Oct. 2024. Web. 10 Nov. 2024. < https://repository.mouau.edu.ng/work/view/machinability-studies-of-aluminium-rice-husk-ash-particulates-composite-chima-lucky-7-2 >.
LUCKY, CHIMA. "Machinability Studies Of Aluminium Rice Husk Ash Particulates Composite:- Chima Lucky" Repository.mouau.edu.ng (2024). Accessed 10 Nov. 2024. https://repository.mouau.edu.ng/work/view/machinability-studies-of-aluminium-rice-husk-ash-particulates-composite-chima-lucky-7-2