In this study, three samples of aluminum alloy with 5%, 10% and 15% SiC composites were fabricated using stir casting process. These samples were investigated using scanning electron microscope equipped with energy dispersive X-ray analysis system, X-ray diffraction analysis and differential thermal analysis techniques. Mechanical properties like hardness, ultimate tensile strength and impact strength of these samples were also investigated. The results revealed that a full homogeneous dispersion of SiC particles in aluminum matrix was obtained without addition of any wetting agent. The peak in the X-ray traces corresponds to the presence of aluminum and SiC and the absence of any significant reactive constituents. The differential thermal analysis curve showed an endothermic peak in aluminum matrix between 648 °C and 650 °C with a nil degradation of material. It was concluded from this study that improvement in mechanical properties of three samples has been achieved. Sample 3 with 15% SiC shows a maximum hardness value (Vickers hardness number) of 120, ultimate tensile strength of 190 MPa and impact strength of 18 J.

In drilling process, burr plays an important role on the quality parts. It is necessary to minimize the burr height. This paper presents the effect of CNC drilling process parameters like cutting speed, feed rate, step angle and cutting environment on burr height and hole diameter error of Al6063/15%/SiC composites. The composites are fabricated using mechanical stir casting. An experimental study on composites was conducted using three HSS drills. The Taguchi design of experiments and analysis of variance (ANOVA) are used to optimize the response for Al6063/15%/SiC composites. The results revealed that the quality of the holes can be improved by proper selection of cutting process parameters. SEM analysis and XRD analysis are also carried for composite, drilled surface and drill bits. These analysis provide the good agreement with the effect of cutting parameters on burr height and hole diameter error.

In the modern world of industrialization the wear is eating metal assets worth millions of dollars per year. The wear is in the form of corrosion, erosion, abrasion etc. which occur in the process industries like oil & gas, refineries, cement plants, steel plants, shipping and offshore working structures. The equipments like pressure vessels, heat exchangers, hydro processing reactors which very often work at elevated temperatures face corrosion in the internal diameter.Hastelloy C-276weld overlay on ferrous material is developed for outstanding resistance to wide variety of chemical process environments such as ferric and cupric chlorides, hot contaminated mineral acids, solvents, chlorine and chlorine contained media, both inorganic and organic, dry chlorine, formic and acetic acids, acetic anhydride, sea water and brine solutions.Selection of SMAW is for development of hastalloy C-276 material with SMAW process to use as a weld overlay process at non accessible area & where position is constraint which is not feasible by other processes like ESSC, FCAW, and SAW etc. I.

In literature, β-glucan is abundantly found in oats and currently used as well as tested against various varieties of food products. The objective of our study is to evaluate its immune-boosting potential of β-glucan extracted from oats and tested against specific protein antigen i.e., bovine serum albumin (BSA) and also measure its antioxidant activity. For these studies, β-glucan using variable concentration and tested in human whole blood samples (exposed with an optimized concentration of bovine serum albumin, BSA) and examined its immune-boosting potential. In contrast, estimation of Th1 (IFN-gamma) and Th2 (IL-4) cytokines were also measured from cell culture supernatant and also measured its antioxidant potential through DPPH assay. The results showed that β-glucan enhanced immune-boosting activity in a concentration-dependent manner against BSA. In contrast, there is enhancement in Th2 (IL-4) cytokines in a dose-dependent manner, but there is no significant effect in Th1 (IFN-gamma) as compared to control. In addition, β-glucan showed drastic enhanced antioxidant potential, which is confirmed through DPPH assay. The data demonstrate that β-glucan showing immune-boosting properties and antioxidant potential.

The widespread adoption of particulate metal matrix composites (MMCs) for engineering applications has been hindered by the high cost of producing components of complex shape. Casting technology may be the key to overcoming this problem with stir casting. But the problem arises with stir casting is wettability and porosity. To overcome the problem of porosity a hybrid casting process is needed. So, hybrid stir casting process was developed to produce a silicon carbide particulate aluminum alloy composite. In this paper, the authors have discussed the various parts like Muffle Furnace, Thermocouple, Electric motor Impeller & Stirrer, Crucible, Vacuum pump, Nitrogen gas, and Lifting mechanism of the Hybrid Stir Casting process.