Microstructural control of an Al–W aluminum matrix composite during direct laser metal deposition

Ramakrishnan, A.; Dinda, G.P.

doi:10.1016/j.jallcom.2019.152208

Cited by 45 publications

(16 citation statements)

References 39 publications

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“…The microstructure depends on several factors, such as solidification rate, type, and amount of reinforcement [27]. Figure 3 indicates the OM images of the a.5 composite before and after etching, which confirmed that the distribution of Fe3O4 particles in the composite is homogeneous, and no pores or cracks could be observed on the composite surface.…”

Section: Microstructural Analysismentioning

confidence: 61%

See 1 more Smart Citation

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Ashrafi

Hanim²,

Jung³

et al. 2022

Materials

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An investigation into the addition of different weight percentages of Fe3O4 nanoparticles to find the optimum wt.% and its effect on the microstructure, thermal, magnetic, and electrical properties of aluminum matrix composite was conducted using the powder metallurgy method. The purpose of this research was to develop magnetic properties in aluminum. Based on the obtained results, the value of density, hardness, and saturation magnetization (Ms) from 2.33 g/cm3, 43 HV and 2.49 emu/g for Al-10 Fe3O4 reached a maximum value of 3.29 g/cm3, 47 HV and 13.06 emu/g for the Al-35 Fe3O4 which showed an improvement of 41.2%, 9.3%, and 424.5%, respectively. The maximum and minimum coercivity (Hc) was 231.87 G for Al-10 Fe3O4 and 142.34 G for Al-35 Fe3O4. Moreover, the thermal conductivity and electrical resistivity at a high weight percentage (35wt%) were 159 w/mK, 9.9 × 10−4 Ω.m, and the highest compressive strength was 133 Mpa.

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Section: Microstructural Analysismentioning

confidence: 61%

“…where ρ c , ρ m , and ρ f refer to the densities of the composite, matrix, and reinforcement, respectively, while V m and V f describe the volume fraction of the matrix and dispersed reinforcement, respectively [27].…”

Section: Density Measurementmentioning

confidence: 99%

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Ashrafi

Hanim²,

Jung³

et al. 2022

Materials

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“…As the weight of Aluminum is very less it is widely used in industries like automobiles (Prakash et al , 2020 ) . Also, there is a very vast application of Aluminum in the manufacturing of windows and doors (Ramakrishnan and Dinda, 2020 ) . The hardness of the Aluminum that is used in this work is 44 BHN.…”

Section: Investigated Materials and Experimental Methodsmentioning

confidence: 99%

Extraction of Cr from chrome containing leather waste to develop composite at optimum casting parameters using response surface methodology

Islam

Dwivedi²,

Dwivedi

2021

WJE

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Purpose This paper aims to extract the Cr from chrome containing leather waste (CCLW) in order to develop composite at optimum casting parameters using RSM technique. Chrome containing leather wastes (CCLW) is one of the significant cause of pollution that is exhaled by the leather industries. One of the technique to address the problem of pollution that is created by CCLW is to recycle it and produce some fruitful results from it. This will not only minimize the levels of harmful emissions to some extent but also give some befitting results. Design/methodology/approach The current work is all about exploring the ways by which CCLW could be used as a reinforcing material with aluminum. In this work, alumina has been used as a secondary reinforcement particle together with CCLW as with the help of stir casting process. The parameters of stir casting have been optimized by using “Response Surface Methodology.” Findings To maximize the hardness and tensile strength the values of optimal input casting parameters as found by the experimental results (response surface methodology) are as follows: the pre-heating temperature of collagen and alumina must be 166 °C and 300 °C, respectively, while the wt.% of collagen and alumina present in the matrix must be 2.45% and 5% sequentially 180 s of stirring time. Originality/value The hardness of the finally tested composite is 67.12 BHN (approx) which has been enhanced by 52.54% as compared to the base material. Tensile strength of composite also enhanced about 18% with respect to base material developed at the optimum combination of casting parameters.

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“…Various studies to manufacture MMCs by a unique laser source have been proposed. Ramakrishnana and Dinda [ 100 ] manufactured MMCs using Al (82 wt.%) + W (18 wt.%) via the LMD technique. A laser beam (diode laser Laserline LDM 2000-40, 978 nm) of 900 W, in combination with three scanning speeds (1.5, 6, and 12 mm/s), was used for the MMCs fabrication.…”

Section: Metal Matrix Composites (Mmcs)mentioning

confidence: 99%

Metal Matrix Composites Synthesized by Laser-Melting Deposition: A Review

2020

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Metal matrix composites (MMCs) present extraordinary characteristics, including high wear resistance, excellent operational properties at elevated temperature, and better chemical inertness as compared to traditional alloys. These properties make them prospective candidates in the fields of aerospace, automotive, heavy goods vehicles, electrical, and biomedical industries. MMCs are challenging to process via traditional manufacturing techniques, requiring high cost and energy. The laser-melting deposition (LMD) has recently been used to manufacture MMCs via rapid prototyping, thus, solving these drawbacks. Besides the benefits mentioned above, the issues such as lower ultimate tensile strength, yield strength, weak bonding between matrix and reinforcements, and cracking are still prevalent in parts produced by LMD. In this article, a detailed analysis is made on the MMCs manufactured via LMD. An illustration is presented on the LMD working principle, its classification, and dependent and independent process parameters. Moreover, a brief comparison between the wire and powder-based LMDs has been summarized. Ex- and in-situ MMCs and their preparation techniques are discussed. Besides this, various matrices available for MMCs manufacturing, properties of MMCs after printing, possible complications and future research directions are reviewed and summarized.

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Microstructural control of an Al–W aluminum matrix composite during direct laser metal deposition

Cited by 45 publications

References 39 publications

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Extraction of Cr from chrome containing leather waste to develop composite at optimum casting parameters using response surface methodology

Metal Matrix Composites Synthesized by Laser-Melting Deposition: A Review

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