Mechanical and dry sliding wear behavior of Al7075 alloy-reinforced with SiC particles

Published on May 1, 2012in Journal of Composite Materials2.591
· DOI :10.1177/0021998311414948
G.B. Veeresh Kumar13
Estimated H-index: 13
,
Cen Rao16
Estimated H-index: 16
,
N. Selvaraj9
Estimated H-index: 9
Sources
Abstract
In this article, the experimental results of the mechanical and tribological properties of Al7075–SiC composites are presented. The composites of Al7075 containing 2–6 wt% SiC were fabricated by liquid metallurgy route. The experimental results showed that the density of the composites increase with increased SiC contents and are in line with the values obtained by the rule of mixtures. The hardness and tensile strength of the Al7075–SiC composites are found to be increased by increased volume percentage of ceramic phase at the cost of reduced ductility. The wear properties of the composites containing SiC exhibited the superior wear-resistance properties.
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References32
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#1R.N. Rao (NITW: National Institute of Technology, Warangal)H-Index: 16
#2S. Das (Advanced Materials and Processes Research Institute)H-Index: 24
In the present study effect of SiC content and sliding speed on the wear behaviour of aluminium alloy and composite was studied using pin-on-disc apparatus against EN32 steel counterface. These tests were conducted at varying SiC particles in 10, 15 and 25 wt.% and sliding speeds of 0.52, 1.72, 3.35, 4.18 and 5.23 m/s for a constant sliding distance of 5000 m. The results revealed that as the SiC content increases the wear rate and temperature decreases, but reverse trend can be observed for coe...
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Abstract Silicon nitride is currently a popular choice as reinforcement to develop light alloy composites owing to its high hot hardness and excellent wear and corrosion resistance. However, meager information is available as regards the development of aluminum alloy–silicon nitride composites by stir cast technique. This route of processing metal matrix composites (MMCs) poses challenges in particular, poor wettability of the ceramic reinforcement in the matrix alloy. To overcome this problem, ...
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The aim of this present investigation is to carry out a comparative study of the mechanical properties of AL6061/Albite composites containing albite(NaAlSi3O8) particulates, which are naturally occurring plagioclase feldspar and AL6061/graphite particulate composites containing graphite particles. The reinforcing particulates in the MMC’s vary from 0% to 4% by weight. The 'vortex method' of production was employed to fabricate the composites, in which the reinforcements were poured into the vort...
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#1Abdulhaqq A. Hamid (University of Mosul)H-Index: 4
#2P.K. Ghosh (IITR: Indian Institute of Technology Roorkee)H-Index: 17
Last. Subrata Ray (IITR: Indian Institute of Technology Roorkee)H-Index: 23
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Abstract Cast in situ particle-reinforced aluminum-based composite is characterized by in situ generation of dispersoid particles and also, further value addition due to matrix strengthening caused by alloying. These lightweight composites result in reduced weight when employed in dynamic components, leading thereby to significant fuel economy. Dry sliding behavior of cast in situ Al (Ti)–Al 2 O 3 (TiO 2 ) composites synthesized by dispersing titanium dioxide (TiO 2 ) particles in molten aluminu...
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#1Y. Reda (Cairo University)H-Index: 5
#2R. Abdel-Karim (Cairo University)H-Index: 10
Last. Iman El-Mahallawi (Cairo University)H-Index: 12
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Abstract Aluminum alloy 7075 has been widely studied, due to its excellent mechanical properties developed by age hardening and their extensive uses in the aircraft structure. Tensile test specimens were tested in various preaging conditions (100, 120, 140 °C) and various retrogression temperatures T 7 (160, 180, 200 °C) in order to evaluate the effect of heating cycles on the mechanical as well as corrosion properties. The optimum condition was preaging at T 6 120 °C and retrogressing at T 7 20...
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#1S. Kumar (Indian Institute of Technology Madras)H-Index: 19
#2V. Balasubramanian (Annamalai University)H-Index: 65
Abstract This paper reports the dry sliding wear behaviour of AA7075 aluminium/SiC p composites fabricated by powder metallurgy technique. Five factors, five levels, central composite, rotable design matrix is used to optimize the required number of experiments. The wear test has been conducted in a pin-on-roller wear testing machine, under constant sliding distance of 1 km. An attempt has been made to develop a mathematical model by response surface method (RSM). Analysis of variance (ANOVA) te...
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Abstract This paper presents results of structural, mechanical and tribological tests of thixocast hypoeutectic Al–Si alloy A356 (EN AlSi7Mg0.3). The pin-on-disc tribometer was used to carry out tribological tests under dry sliding conditions at different loads. Two sets of specimens were used as pin materials. The first one was taken from the original alloy billet and the second one from thixocast alloy. Heat treatment was applied on both sets of specimens. The results showed that, for all appl...
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#1Shaoyang Zhang (HIT: Harbin Institute of Technology)H-Index: 1
#2Fuping Wang (HIT: Harbin Institute of Technology)H-Index: 1
Abstract The purpose of this paper was to investigate the friction and wear behavior of the same brake materials dry sliding against two different brake drums made of aluminum matrix composite reinforced with different sizes (3.5 and 34 μm) of 25 vol.% SiC particles (SiC p ), respectively, in place of the conventional cast iron brake drum for a Chase Machine. It has been found that the brake material against the latter showed better friction performances and wear resistance than those against th...
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#1R. Clark (LMU: Loyola Marymount University)H-Index: 6
#2B. Coughran (LMU: Loyola Marymount University)H-Index: 1
Last. Omar S. Es-Said (LMU: Loyola Marymount University)H-Index: 18
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Abstract The influence of varying the thermal processing parameters on the physical and mechanical properties of 7075 T6 aluminum alloy was studied. The variables altered were solution treatment temperatures, quenching media and artificial aging conditions. The influence of varying these parameters on the tensile strength, electrical resistivity and hardness of the alloy is discussed and an excellent correlation is found between the tensile strength and hardness.
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#1Rajnesh Tyagi (BHU: Banaras Hindu University)H-Index: 16
Abstract The Al–TiC composites containing three different volume fractions 0.07, 0.12 and 0.18 of TiC have been fabricated by in melt reaction method. Friction and wear characteristics of Al–TiC composites have been investigated under dry sliding and compared with those observed in pure aluminium. Dry sliding wear tests have been carried out using a pin-on-disk wear tester at normal loads of 9.8, 14.7, 19.6 and 24.5 N and at a constant sliding velocity of 1.0 m/s. Weight loss of the samples has ...
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The current trend in the materials engineering sector is to develop newer materials that can replace the existing materials in various engineering sectors in order to be more and more efficient. Therefore, the present research work is aimed at fabricating and determining the physical, mechanical, and dry sliding wear properties of titanium carbide (TiC)-reinforced aluminum alloy (Al6061) metal matrix composites (MMCs). For the study, the Al6061-TiC microparticle-reinforced composites were fabric...
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#1Nikhilesh Singh (PEC University of Technology)H-Index: 2
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Hybrid metal matrix composites are the modern age materials that are extensively employed in automotive, civil construction, and bio-medical sectors. These composites should be eco-friendly, cost-effective, and exhibited with good mechanical properties. Therefore, this paper proposes a novel hybrid metal matrix composite with Al7075-T6 as a base matrix and SiC/CR/MoS2 as three distinct reinforcements, which is fabricated through advanced vacuum-sealed bottom pouring stir casting (BPSC) technique...
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Last. R. PramodH-Index: 10
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The mechanical characteristics of Al6061 filled with Tungsten carbide composites and Al6061 filled with graphite particulate composites are compared in this article. The fine reinforcing particles in MMCs range 0% to 4% by weight. The composites were manufactured using stir casting - vortex method. Al6061-WC and Al6061-Gr composites were exemplified for various properties following ASTM standards. The composites were later subjected to T6 ageing. The experimental findings revealed that increasin...
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Last. B. Dileep
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The objective of current paper is to investigate mechanical, and tribological behavior of Al7150 matrix reinforced by Boron Carbide. Stir casting process, was used to make Al7150-Boron Carbide Metal Matrix Composites (MMCs). The incorporation of reinforcement in matrix ranged from 0 to 2 wt%, with 0.5 intervals. The collected composite samples were used in research studies including physical, mechanical and tribological experiments. The experiments were carried-out in harmony with ASTM Standards...
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#1G.B. Veeresh KumarH-Index: 13
#2Ulhas K. AnnigeriH-Index: 2
Chosen resources over Al6061alloys are Aluminum (Al) Metal Matrix Composites (Al-MMCs) in conveyance, astronomical, and aquatic applications subsequently they have advanced attributes over Al6061alloys. Al-MMCs occupied by Boron Carbide (B4C) upsurge tribological attributes. The results of tribological attributes of Al6061 base occupied with B4C is explained. MMCs were produced with 0,1,2,3 weight % (wt.%) occupancy of B4C. Density and microstructure examination was done. The tribological attrib...
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#2Vijaya Kumar (Visvesvaraya Technological University)H-Index: 2
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Abstract null null Aluminum Metal Matrix Composites (MMCs) are preferred over other traditional materials in aerospace, automotive, and marine applications due to their superior enhanced properties. A significant literature has been studied in this regard, and it has been found that processing conditions can be tuned to achieve homogeneous Al-composites structure. The incorporation of ceramic particles has been revealed to be necessary for these composites to achieve the required strength and ha...
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#1Sepideh Salarieh (BNUT: Babol Noshirvani University of Technology)
#2Salman Nourouzi (BNUT: Babol Noshirvani University of Technology)H-Index: 11
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The purpose of this study was to determine the effect of titanium reinforcement on the microstructure and mechanical properties of an Al-Zn-Mg-Cu alloy matrix composite. The composite was formed using the compocasting method in a semisolid–liquid state, with titanium reinforcement ranging between 0 and 1 wt.%. The results indicate that the composite microstructure contained null null null null null null null null null null null null null null null null null null null null null null null null nul...
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Abstract null null Mechanical milling presents an effective solution in producing a homogenous structure for composites. The present study focused on the production of 0.5 wt% yttria nanoparticle reinforced 7075 aluminum alloy composite in order to examine the effects of yttria dispersion and interfacial bonding by ball milling technique. The 7075 aluminum alloy powders and yttria were mechanically alloyed with different milling times. The milled composites powders were then consolidated with th...
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Abstract null null The present study investigates the effects of the parameters of the compocasting method on the microstructure and mechanical properties of AA7075/Al3Ni composites. By applying compocasting in the semisolid-liquid condition, the Ni reinforcement was varied from 0 to 5 wt%. The results indicate that an increase in the weight percentage of nickel does not have a major impact on the null null null α null null -Al grain size. However, the most significant changes were in the distri...
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