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1843 articles for “Composites”
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Study of Shielded Gases for MIG Welding
Abstract: Protecting shielding gases are inert or semi-inert gasses that are regularly utilized in few welding forms, mostly in gas metal arc welding and gas tungsten arc welding (GMAW and GTAW, more prevalently known as MIG and TIG, respectively). Their purpose is to shield the weld region from oxygen, and water vapour. Contingent upon the materials being welded, these air gases can diminish the quality of the weld or make the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 1, 2016 · pp. 6–10 Read article
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Fully Interpenetrating Polymer Network from Natural Rubber and Guar Gum
Abstract: Fully interpenetrating polymer network (IPN) based on natural rubber (NR) and guar gum (GG) was prepared by using glutaraldehyde as a common crosslinking agent. As both the polymers are naturally occurring and the resulting IPN material can be termed as a green polymeric material. The solvent resistance properties of these samples were investigated by equilibrium swelling method using benzene as a solvent. Benzene was used as the penetrant for the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 2, 2015 · pp. 18–21 Read article
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Effect of Boric Acid Addition on Tensile Test Properties of Fiber Glass
Abstract: AbstractThis project is an experimental attempt to study the effect of boric acid addition on the fiber glass tensile properties. First, one must know how the fiber glass materials be made and what are their structures. Then, it is required to study the boric acid structure, its uses and effect on other composites. The boric acid is added to fiber glass material, mixed together and then subjected to a tensile …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 2, 2015 · pp. 29–38 Read article
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Application Oriented Approach of Layered Manufacturing in Biomedical and Engineering Fields: A Review
Abstract: Layered Manufacturing Systems found their applications in Medical and engineering fields since the inception of the technology. The Rapid Prototyping (RP) technologies are being used to reduce the time for design, time for manufacture and the cost of components. Many researchers have published their works in biomedical applications like implant manufacturing, tissue engineering and in dentistry. Also the engineering fields like composite material development, modeling and design, rapid tooling, die …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 2, 2015 · pp. 39–51 Read article
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Comparison of RSM and ANN Modeling Approaches in Predicting the Laser Phase Transformation Hardening Parameters on the Heat Input and Hardened-Bead Profile Quality of Unalloyed Titanium
Abstract: In the present work, laser transformation hardening (LTH) of unalloyed titanium, nearer to ASTM Grade 3 of chemical composition was investigated using CW 2kW, Nd: YAG laser. The laser process variables such as laser power, scanning speed, and focused position play a major role in deciding the laser hardened bead quality. Two methods, Response Surface Methodology (RSM) and Artificial Neural Network (ANN) were used to predict the heat input and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 5, Issue 1, 2015 · pp. 36–59 Read article
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A Study of Improvement of Mechanical Properties of Aluminum by Conventional Casing and Deformation Process
Abstract: Nowadays, Aluminum-Zinc alloy system are the major and rapid development in the field of automotive and aerospace industries for growing demand of efficient vehicles and aircrafts to reduce energy consumption and air pollution. Aluminum is a very soft metal by nature. Different alloying elements were added in the past to increase its strength and toughness. Zinc is considered as a major alloying element in aluminum to increase its strength and …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 16–20 Read article
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Micro Crack Formation in High Frequency-Electric Resistance Welding
Abstract: The present paper discusses about the formation of micro cracks in base metal adjacent to the weld area during High Frequency-Electric Resistance Welding (HF-ERW) of 10'' outside diameter pipe. The micro crack formation has been analyzed with respect to chemical composition, microstructure, inclusion level, welding parameters and angle of weld flow lines.
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 2, 2014 · pp. 32–39 Read article
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Critical Review of Fatigue Properties of Friction Stir Welds of Aluminum Alloys
Abstract: Friction Stir Welding (FSW) is a solid state welding technique being developed for various metals and alloys. It allows joining of high strength aluminum alloys which is generally difficult to weld with conventional welding techniques. This joining technique is energy efficient, environment friendly, and versatile. FSW is considered to be the most significant development in metal joining in a decade. It is expected to have various weld properties to meet …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 1, 2014 · pp. 1–6 Read article
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Interference of Components in Metallic Diffusion
Abstract: Eight different pairs of metals which diffuse in each other in a solid state composition and make a homogenous or heterogeneous mixture are considered for deeper understanding of diffusion phenomenon, w.r.t. direction of diffusion, etc. Further the authors interpret which factors are responsible for the metal and/or more specifically which metal atom will be active in the diffusion process. The analysis evidenced number of breakage of bonds in the substrate …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 1, 2014 · pp. 23–30 Read article
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Centrifugal Casting of Nano Crystalline TiB2 Reinforcement Particulate Reinforcement in Al-Alloy Matrix
Abstract: A method of producing Nano size TiB2 particles within an aluminium matrix is the in situ reaction synthesis method, using KBF4 and K2TiF6 potassium based bearing fluxes. The advantages of this in situ reactive process are a small particle size and good particle/matrix interfacial bonding. However, this method is limited to producing low particulate volume percentage material (˂6 vol%). To overcome this limitation, centrifugal casting has been investigated. A series …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 3, 2013 · pp. 7–13 Read article
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In Situ Determination of Surface Porosity and Pore Characterization in Refractories
Abstract: Surface pore characterization and surface porosity determination of test refractories produced to varying porosities were done using image analysis. The surface pore count, pore size and pore area distributions were presented in a surface porosity chart that is characteristic of the surface. Instant visual information from these chart were noted. The sharp beak pattern, for instance, is notable as a chart signature characteristic of a dent or rupture on the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 3, 2013 · pp. 14–22 Read article
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Micro-structural Analysis of Fly Ash and Clay Compacts
Abstract: Industrial waste like fly-ash is mainly used as a good building material due to its low weight. But the main disadvantage of these bricks is its low compressive strength. So, a lot of research is going on to increase the strength of these bricks. Normal clay is used for making of bricks in a cheaper sense. So, a research is carried out to develop a new systematic procedure to produce …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 3, 2013 · pp. 28–31 Read article
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An Austempering Study of Ductile Iron and the Effect of Copper Addition on the Tensile Properties of Austempered Ductile Iron
Abstract: Austempered Ductile Iron (ADI) has proved to be an excellent material as it possesses attractive properties like high strength, ductility and toughness combined with good wear resistance and machinability. These properties can be achieved upon adequate heat treatment which yields optimum microstructure for a given chemical composition. In this work, an investigation has been conducted on ductile iron alloyed with Cu and austempered in a range of time and temperatures. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 2, 2013 · pp. 1–7 Read article
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A Novel Technique for Improved Recovery of Mg-Analysis of the Microstructure and Physical Properties
Abstract: Aluminium-Magnesium alloys are used widely in industrial applications as well as for the preparation of metal matrix composite because of their low density and high specific strength. Magnesium has a low boiling point and the recovery of magnesium is poor when it is added in pure form particularly as cheaply available turnings to the liquid metal. Magnesium is added to aluminium for increasing its wettability and thus helping in uniformly …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 1–7 Read article
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Multi Objective Optimization of Weld Bead Geometry Parameters of Pulsed Current Micro Plasma Arc Welded Inconel 625 Using Enhanced Non-dominated Sorting Genetic Algorithm
Abstract: Pulsed Current Plasma Arc Welding (PCPAW) is one of the most widely used welding processes in sheet metal manufacturing industry. In any fusion arc welding process, the weld bead geometry plays an important role in determining the mechanical properties of the weld and hence, quality of the weld. Moreover, the geometry of weld bead involves several simultaneously multiple quality characteristics such as front width, back width, front height and back …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 17–24 Read article
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Processing and Properties of In situ Synthesized Reinforcements in Molten Magnesium
Abstract: In situ synthesized reinforcements for magnesium composites are an attractive area of research especially due to the inherent advantages of the process. Various reinforcements such as intermetallics and ceramics have proved their effectiveness in magnesium by imparting higher mechanical and tribological properties to the metal matrix. Fabrication of reinforcements in molten magnesium matrix is a very critical area owing to large scale production prospective and ease of implementation. This paper …
Published in Journal of Materials & Metallurgical Engineering · Vol. 3, Issue 1, 2013 · pp. 25–33 Read article
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Effect of Process Parameters of Pulsed Current Micro Plasma Arc Welding on Weld Pool Geometry of AISI 304L Stainless Steel Sheets
Abstract: AISI 304L stainless steel is an austenitic Chromium-Nickel stainless steel offering an optimum combination of corrosion resistance, strength, and ductility. These attributes make it a favorite for many mechanical components. The low carbon content reduces susceptibility to carbide precipitation during welding. The effects of pulsing current parameters on weld pool geometry namely front width, back width, front height, and back height of pulsed current micro plasma arc-welded AISI 304L stainless …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 105–116 Read article
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Optimizating Pitting Corrosion in 3.5 N NaCl Medium of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets Using Genetic Algorithm
Abstract: Austenitic stainless steel sheets have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, pulsed current micro plasma arc welding (PCMPAW) was found beneficial due to its advantages over the conventional continuous current process. This paper highlights …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 132–142 Read article
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Processing and Characterization of Ni2MnSn FSMA
Abstract: Among Ferromagnetic Shape Memory alloys (FSMAs), Ni2MnSn Heusler alloys owing to occurrence of large magnetic field induced strain (> 10%) along with other interesting properties like premartensitic transition, high transformation temperature, large magnetocaloric effect and low stress of twin variant rearrangement. The prominent challenges facing the design and utilization of these specialized alloys are a limited range of operating temperatures, phase transformations that have high sensitivity to variations in composition, …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 154–159 Read article
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Establishing Empirical Relationships to Predict Grain Size and Hardness of Pulsed Current Microplasma Arc Welded Inconel 625 Sheets
Abstract: Nickel alloys have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metallic bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, pulsed current microplasma arc welding was found beneficial due to its advantages over the conventional continuous current process. The paper focuses on developing mathematical models …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 37–47 Read article