Browsing by Author "Maurya, P."

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    Analysis of Abrasive Wear Characteristics of Brass 60/40 Using MATLAB
    (2018) Shadab, Khan, M.; Shukla, A.M.; Ahed, Khan, A.; Maurya, P.
    Abrasive wear behavior of Brass 60/40 was investigated using pin on disc wear testing machine. The abrasive wear test of brass was conducted by taking two variables viz. orientation and normal load. The normal load varies from 5N to 35N with different orientation angles (0�, 30�, 45�, 60�, and 90�), the speed of rotating abrasive disc kept constant at 1500 rpm. The experimental data was obtained from 5N to 20N only, by using pin on disc wear testing machine, however the data beyond 20N were validated with help of MATLAB. For proper validation of result for wear (mass loss), the exploratory data analysis (EDA) and regression analysis (RA) are used. These two analyses were conducted on MATLAB by using curve fitting tool and surface fitting tool. After the completion of experimental work, the results showed reduction in wear (mass loss) under constant loading condition with increase in orientation angle while increased in wear (mass loss) under constant orientation angle with increase in normal load. � Published under licence by IOP Publishing Ltd.
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    Analysis of Abrasive Wear Characteristics of Brass 60/40 Using MATLAB
    (Institute of Physics Publishing helen.craven@iop.org, 2018) Shadab Khan, M.; Shukla, A.M.; Ahed Khan, A.; Maurya, P.
    Abrasive wear behavior of Brass 60/40 was investigated using pin on disc wear testing machine. The abrasive wear test of brass was conducted by taking two variables viz. orientation and normal load. The normal load varies from 5N to 35N with different orientation angles (0°, 30°, 45°, 60°, and 90°), the speed of rotating abrasive disc kept constant at 1500 rpm. The experimental data was obtained from 5N to 20N only, by using pin on disc wear testing machine, however the data beyond 20N were validated with help of MATLAB. For proper validation of result for wear (mass loss), the exploratory data analysis (EDA) and regression analysis (RA) are used. These two analyses were conducted on MATLAB by using curve fitting tool and surface fitting tool. After the completion of experimental work, the results showed reduction in wear (mass loss) under constant loading condition with increase in orientation angle while increased in wear (mass loss) under constant orientation angle with increase in normal load. © Published under licence by IOP Publishing Ltd.
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    Effect of hydrodynamics and laser surface melting on erosion-corrosion of X70 steel pipe elbow in oilfield slurry
    (Elsevier Ltd, 2022) Ajmal, T.S.; Arya, S.B.; Maurya, P.; Shariff, S.M.
    Erosion-corrosion (EC) is a significant cause of pipeline failure in the petrochemical industry. The influence of laser surface melting (LSM) on the EC of API X70 steel was investigated with simulated oilfield slurry (1.5 wt% silica sand). The slurry was circulated continuously in a closed-loop apparatus at 3 m/s velocity and EC tests were performed using electrochemical corrosion and weight loss measurements for the untreated and LSM (2.5 kW) samples located at a 90⁰ pipe elbow. Since the erodent particle velocity and the flow rate are low, the EC was dominated by corrosion. LSM samples exhibited higher EC resistance and hardness due to the surface metallurgy alteration and the EC rate varies within the pipe elbow. The primary reasons for the severe EC rates of electrodes placed at the downstream side of the elbow's extrados (outer face) are the secondary flow effect and higher sand concentration. © 2022 Elsevier Ltd