Comparative Analysis of Al/TiB&lt;SUB&gt;2&lt;/SUB&gt; Metal Matrix Composites in Different Mould Conditions

Rajaravi, C.; Niranjan, Keshavan; Lakshminarayanan, P.R.

doi:10.1166/jamr.2015.1273

Cited by 10 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Various factors can cause variation in tensile strength. This work analyzes the most influential factors, i.e., wettability, uniform distribution, cluster formation, etc., in detail [ 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Wettability and Uniform Distribution of Reinforcement Particle on Mechanical Property (Tensile) in Aluminum Metal Matrix Composite—A Review

et al. 2021

View full text Add to dashboard Cite

There is a massive demand for low-weight high strength materials in automotive, space aerospace, and even structural industries in this present engineering world. These industries attract composites only because of their high strength, resistance to wear, and low weight. Among these composites, metal matrix composite finds wide applications due to its elevated properties, excellent resistance property, corrosion resistance, etc. The reinforcements exist in particles, fiber, and whiskers. Among the three, particles play an important role because of their availability and wettability with the metal matrix. Additionally, among the various metal matrices such as aluminum, magnesium, copper, titanium, etc., aluminum plays a vital role among metal matrices because of its cost, availability in abundance, and castability. Stir casting is the most inexpensive and straightforward composite fabrication technique among the prevailing techniques. Even though so many factors contribute to the elevated property of composites, metal matrix, and reinforcement phase, uniform distribution and wettability are essential factors among all the other factors. This review aims to develop a composite with elevated property in a cost-effective manner. Cost includes metal matrix, reinforcement, and processing technique. Various works have been tabulated to achieve the above objective, and analysis was carried out on tensile strength concerning microstructure. This review paper explores the challenges in composite fabrication and finds a solution to overcome them.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Wettability and Uniform Distribution of Reinforcement Particle on Mechanical Property (Tensile) in Aluminum Metal Matrix Composite—A Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…It is due to the existence of fine and uniform distribution of TiB 2 particles in the aluminium matrix. Moreover, exothermic reaction offers good interfacial boning between the matrix and TiB 2 particles and hence matrix efficiently transfers the penetration load to TiB 2 particles, so as resistance to penetration increased vastly, when compared to ex situ (Al/SiC) formed composites [11,13].…”

Section: Effect Of Pouring Temperature On Hardnessmentioning

confidence: 99%

Effect of pouring temperature on cast Al/SiCp and Al/TiB2 metal matrix composites

Rajaravi

Gobalakrishnan

Lakshminarayanan

2019

Journal of the Mechanical Behavior of Materials

Self Cite

View full text Add to dashboard Cite

The effect of pouring temperatures of an ex situ (Al/SiCp) and in situ (Al/TiB2) metal matrix composites (MMCs) synthesized using stir casting method were studied. The Al/SiCp composite were fabricated by mixing of 6wt.% of SiCp into cast A356 aluminium alloy melt and poured at diverse pouring temperatures (730∘C, 750∘C and 770∘C). The Al/TiB2 MMCs were obtained by melting A356 aluminium alloy and mixing of KBF4 and K2TiF6 precursor salts whose stoichiometric ratio composition corresponds to 6wt.% of TiB2 reinforcement and other parameters were constant (stirring speed 300 RPM and holding time 30 minutes). The composite melt was poured into the permanent mould with varied pouring temperatures (800∘C, 820∘C and 840∘C). Coarser and homogenous SiC particles were presented in the Al/SiCp MMCs, whereas, finer and uniformly distributed TiB2 particles were appeared at the MMCs of Al/TiB2. The mechanical properties viz. tensile strength, fracture toughness and hardness of Al/SiCp and Al/TiB2 MMCs were experimentally determined as per the ASTM standards and compared. Higher tensile and fracture strength were occurred at the MMCs of Al/TiB2 as compared to Al/SiCp MMCs and base alloy of aluminium as well. Maximum hardness was attained at the pouring temperatures of 820∘C and 750∘C in the MMCs of Al/ TiB2 and Al/SiCp, respectively.

show abstract

“…Heat treatment has a profound effect on the hardness of the matrix alloy as well as the composite. It is due to precipitation hardening of aluminium based particulate reinforced composite in the solutionizing stage, and these precipitates impede dislocation movement (12). In addition the intermetallics that form due to heat treatment settle in between the TiB2 particles and thus effect of intermetallics formed from precipitation is to increase the properties less proportionate.…”

Section: Fig 8 Graph Of Hardness Between Different Mouldmentioning

confidence: 99%

“…An attempt was made to synthesize the in-situ composite withA356 as matrix material and TiB 2 as the reinforcement eliminating the inherent associated defects with exsitu process like agglomeration, poor wettability and nonuniformity of distribution. The as-cast aluminium based reinforced composites requires to be heat treated for enhancing its mechanical properties (5).Nevertheless, the synergic impact of heat treatment and the kind of reinforcement plays a huge part in dictating the final mechanical properties of composites (6). The microstructure was used to confirm the size and uniformity of TiB 2 particles.…”

Section: Introductionmentioning

confidence: 99%

Heat Treatment of Al/TiB2 MMC with Different Moulds

Rajaravi¹,

Sivabalan²,

Shivathanu³

et al. 2018

IJCTR

Self Cite

View full text Add to dashboard Cite

:In this work, A356 cast aluminium alloy with 6% TiB 2 in-situ formed MMCs have been fabricated using stir casting route and poured at sand and permanent moulds. The composite was synthesized using stir casting technique. The A356 cast aluminium alloy and all synthesized composites are subjected to solutionizing treatment at a temperature of 540˚C for one hour, followed by quenching in hot water at 43˚C. The quenched samples are then subjected to artificial aging at 171˚C for 8 hours. Morphology of the cast composites was studied in detail by the optical microstructure. The Mechanical properties have been carried over on both sand and permanent of Al/TiB 2 MMC composites before and after heat treatment. Under heat treated condition, Al/TiB2 composites showed better tensile strength and hardness when contrasted with base Al matrix alloy. And different moulds were investigated and its comparison shows that the tensile and hardness value of Al/TiB 2 MMC is higher than permanent mould.

show abstract

Comparative Analysis of Al/TiB<SUB>2</SUB> Metal Matrix Composites in Different Mould Conditions

Cited by 10 publications

References 0 publications

Effect of Wettability and Uniform Distribution of Reinforcement Particle on Mechanical Property (Tensile) in Aluminum Metal Matrix Composite—A Review

Effect of Wettability and Uniform Distribution of Reinforcement Particle on Mechanical Property (Tensile) in Aluminum Metal Matrix Composite—A Review

Effect of pouring temperature on cast Al/SiCp and Al/TiB2 metal matrix composites

Heat Treatment of Al/TiB2 MMC with Different Moulds

Contact Info

Product

Resources

About