Microwave cladding: A new approach in surface engineering

Gupta, Dheeraj; Sharma, Apurbba Kumar

doi:10.1016/j.jmapro.2014.01.001

Cited by 85 publications

(34 citation statements)

References 31 publications

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“…The WC-12Co cermet clads were developed on the SS-304 substrates using microwave hybrid heating (MHH) technique in multimode industrial microwave applicator (Make: Enerzi Microwave Systems, Model: MH-1514-101-V6). The details of developing clads through MHH technique are detailed elsewhere [2,[14][15][16]. The thickness of the microwave WC-12Co CWC and NWC clads was of the order of 1 mm.…”

Section: Methodsmentioning

confidence: 99%

Prediction of Tribological Behaviour of WC-12Co Nanostructured Microwave Clad through ANN

Zafar

Sharma

2016

Tribology Online

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In the present work an artificial neural network (ANN) model was developed to predict the wear rate and coefficient of friction of WC-12Co nanocomposite microwave clads. Various combinations of the transfer function and number of neurons in the hidden layer was used to optimise the neural network. The influence of nature of reinforcement, normal load and sliding distance on the wear rate of the conventional and nanostructured microwave clads was evaluated using the ANN model. The mean square error of 500 epochs was considered to evaluate the performance of the ANN model. The wear rate and coefficient of friction predicted through the ANN model was then compared with experimental results. The predictions of the ANN model were consistent with experimental results. It can be therefore concluded that ANN is an effective modeling technique to predict the wear rates of the WC-12Co microwave clads.

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Section: Methodsmentioning

confidence: 99%

Prediction of Tribological Behaviour of WC-12Co Nanostructured Microwave Clad through ANN

Zafar

Sharma

2016

Tribology Online

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“…These will allow the properties to be altered even without modifying its composition [3]. Surface Engineering leads to a better metallurgical bond with the base metal and gives a porous free structure [4]. Surface engineering improves the wear, corrosion and erosion resistance, and improves the fatigue service life of the component.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterisation of B4C reinforced Al6061 Friction Stir Processed Surface Composites

Mohanasundaram*¹,

Vijay²,

Rajakumar³

et al. 2019

IJEAT

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Current industrial trends show increased usage of lightweight high strength materials such as Aluminium, Titanium, Magnesium, etc., in their products and components. To achieve an improved service life, particulates reinforced metal matrix composites are being favored over the monolithic alloys. Researchers have reported undesirable defects and interfacial reactions while trying to fabricate such composites using conventional methodologies. This motivates the present work to use friction stir processing, an allied process of friction stir welding, to fabricate metal matrix composites. Structurally stable and most commonly used AA6061 alloy was taken for the experiment. B4C particles were used as reinforcements. Experiments were carried out using different process parameters like tool revolution and tool traverse speed or processing speed along with a constant axial force. The B4C particles were packed into a 1.5 mm groove on the Al6061 plate and friction processing was carried out. The SEM investigations on the composites showed a defect-free microstructure with a homogeneous distribution of reinforcement particles. It was found that the reinforcements increased the tensile strength of the composite by 50%. The hardness and wear-resistant properties of the composites had also improved considerably.

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“…Recently, Gupta and Sharma 28 have reported development of metallic/composite claddings on bulk steels using domestic microwave oven and described the ''microwave cladding'' as a new approach in surface engineering. [29][30][31] It was reported that using MHH, within seconds of microwave exposure, high-quality claddings were developed by metallurgical bonding with substrates. The authors reported that owing to volumetric heating, defect-free claddings with uniform thickness were produced.…”

Section: Introductionmentioning

confidence: 99%

Microwave melting and processing of metal–ceramic composite castings

Singh

Gupta

Jain

2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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Applications of metal-ceramic composites are increasing in advanced materials field; however, efficient utilization of these materials depends on the cost involved in processing and structure-properties correlations. Processing of materials through microwave energy has already been accepted as a well-established route for many materials. In this work, composites of nickel-based metallic powder (matrix) and SiC powder (reinforcement) were successfully casted by microwave heating. The mechanism for the development of composite castings using microwaves is discussed with proper illustrations. The results of microstructure analysis of the developed cast revealed that uniform equiaxed grain growth with uniform dispersion of reinforcement. The results of X-ray diffraction analysis revealed that during microwave heating some metallurgical changes took place, which led to higher microhardness of cast. Micowave processed casting revealed lower defects (~1.75% porosity) and average Vickers microhardness of 920 6 208 HV. This work reports the successful applications of microwaves in manufacturing, in the form of melting and casting of metallic powders.

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Microwave cladding: A new approach in surface engineering

Cited by 85 publications

References 31 publications

Prediction of Tribological Behaviour of WC-12Co Nanostructured Microwave Clad through ANN

Prediction of Tribological Behaviour of WC-12Co Nanostructured Microwave Clad through ANN

Synthesis and Characterisation of B4C reinforced Al6061 Friction Stir Processed Surface Composites

Microwave melting and processing of metal–ceramic composite castings

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