All articles

Published Subscription 18 Dec 2020

MWCNT AND GRAPHENE FOR IMPROVED CORROSION RESISTANCE OF MILD STEEL

By Elias George K., A. Mathiazhagan

Abstract: ABSTRACTThe protective coating method is a passive corrosion protection technique. The protective coating detaches the metallic surfaces from the aggressive media, such as moisture, salts, acids etc. Nanotechnology is a relatively modern development in scientific research, the development of this concept occurred over a very short period of time. One technique that has recently been used to increase the adhesive and anti-corrosive properties of polymer coatings is the addition of …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 12–17 Read article

Published Subscription 18 Dec 2020

Study of Microstructure and corrosion effects of precipitation hardened high strength AA-7xxx aluminium alloy subjected to cryo rolling

By Y. Phaneendra, Bh. Nagesh, I.N. Niranjan Kumar

Abstract: The strength and life of an alloy is the primary parameter taken into consideration while building hulls and superstructures for marine applications. Usually AA-7xxx is widely used for these applications and hence is chosen for the present investigation. Cast AA-7xxx alloy reveals distribution of soluble intermetallic compounds in the α-aluminium matrix. In order to improve the mechanical properties and condition the microstructural features, precipitation hardening (solutionizing and ageing) treatment was …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 2, 2020 · pp. 18–23 Read article

Published Subscription 27 Jun 2020

Assessment on the Effecs of Sodium Salts of Tungstate and Nitrite as Green Inhibitor for the Corrosion of Cr–5Ni–53W Alloy in 0.5 M NaCl Solution

By Jagadeesh Bhattarai, Durga Bhakta Pokharel, Dhruba Babu Subedi

Abstract: Corrosion inhibition effect of sodium salts of tungstate and nitrite on the sputter-deposited ternary Cr–5Ni–53W alloy was investigated in 0.5 M NaCl solution open to air at 25±1 °C using corrosion test, inhibition mechanism and corrosion potential measurement. The use of sodium salts of both the tungstate and nitrite enhanced the corrosion resistance properties of the ternary alloy in 0.5 M NaCl solution, mostly due to tungstate and nitrite ions …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 25–36 Read article

Published Subscription 27 Jun 2020

INVESTIGATIONAL STUDIES ON MECHANICAL PROPERTIES FOR FRPS COMPOSITES

By Roopsandeep Bammidi, K. Siva Prasad

Abstract: The fibre reinforced composite materials consists of fibres of significant stiffness and strength embedded in a matrix with distinct boundaries between them and these materials had better mechanical properties when compared to normal metals which are thought as better substitutes to metals and add strength and reduces weight of a given system.The strength of FRPSS varies basing on its constituents and composition of constituents. In marine field where high strength …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 1–6 Read article

Published Subscription 27 Jun 2020

Mechanical properties of Al-Si17Cu3.5Mg0.8 alloy fabricated by stir casting with UV and new CRSS casting process with and without T6 condition

By N.D. Malleswararao K, I.N. Niranjan Kumar, Bh. Nagesh

Abstract: Aluminum-Silicon metal matrix composites are the popular materials in the vast majority of the car and modern industries on account of their low weight, high mechanical properties, and incredible wear opposition properties. In the present study, Al-Si17Cu3.5Mg0.8 alloy is fabricated by two casting processes such as stir casting with ultrasonic vibrations (RSC) and merged-rheo-stir-squeeze (CRSS) casting with and without heat treated (T6) condition. Microstructural and material characterization was explored by …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 15–24 Read article

Published Subscription 27 Jun 2020

Optimization of Active Cutting Power Consumption by Taguchi Method for Rough Turning of Alloy Steel

By Raman Kumar, Paramjit Singh Bilga, Sehijpal Singh

Abstract: In this study, the active cutting power consumption (ACPC) is optimized as it is usually the major factor of the electricity bills in machining operations. The EN 353 alloy steel is used as workpiece material during rough turning while varying cutting parameters and nose_radius. The experiments were conducted in accordance with the Taguchi’s L-27 standard arrangement and the interactions between parameters were also considered with tungsten carbide inserts. The optimum …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 37–45 Read article

Published Subscription 27 Jun 2020

Effect of Ge and Pb Impurities on the Optical Properties of Amorphous (Sb2Se3)90Sn10 Thin Films

By Maninder Kaur, Sarabpreet Singh

Abstract: The as prepared samples of [(Sb2Se3)90Sn10]95 M5 [M = Ge, Pb] chalcogenide system were amorphous as evidenced by X-ray diffraction studies. The optical band gap has been estimated with the help of Taucs relation for the as-deposited [(Sb2Se3)90Sn10]95M5 thin films. It is observed that the optical band gap increase with increase in the Ge and Pb content, which may be due to decrease in the density of defect states. This …

Published in International Journal of Metallurgy and Alloys · Vol. 6, Issue 1, 2020 · pp. 7–14 Read article

Published Subscription 27 Jan 2020

Effect of Antimony (Sb) incorporation on physical parameters of Te15 (Se100-xSbx)85 glassy alloys

By Kameshwar Kumar, Nagesh Thakur

Abstract: In the present study the physical parameters of Te15 (Se100-xSbx)85 glassy alloys prepared by melt quenching technique have been reported. The parameters viz. average coordination number (<r>), average number of constraints (Ncon), number of lone pair electrons (L), mean bond energy( <E>), cohesive energy (CE), average heat of atomization (Hs), glass transition temperature (Tg), density (ρ) and energy gap (Eg) were calculated theoretically for the glassy alloys. The mean bond …

Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 46–55 Read article

Published Subscription 23 Jan 2020

Organic Compound 5-(4-methoxybenzyl)-N-phenyl-1,3,4-thiadiazol-2-amine and NiS filler used to Mitigation the Corrosion of Mild steel and in Marine Atmosphere

By Rajesh Kumar Singh, Mithilesh Kumar Singh, Noor Alam

Abstract: The concentration of chloride ions is higher in marine atmosphere. The bulk amount of mild steel uses in sea weather for different works. This metal is very sensitive in chloride ions. It produces hostile environment for mild steel. Chloride ions develop corrosion cell on the surface of mild steel and it changes their external and internal morphology as well as physical, chemical and mechanical properties. Mild steel exhibits corrosion reaction …

Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 56–64 Read article

Published Subscription 23 Jan 2020

Service temperature attenuated materials

By Bangshidhar Goswami, Atul Kumar, Abhishek Kumar, Bijay Kumar Singh

Abstract: Service temperatures in engineering materials have been one of important factors. It alone has not been only controlling variable for creep properties. Useful services from useful materials therefore have been more important within temperature ranges stipulated for certain services. Temperature ranges of interest to materials engineer have been ranged from cryogenic regions (- 200oC) to temperature of a tungsten-filament lamp (2000oC). This article has been description of materials from room …

Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 37–45 Read article

Published Subscription 3 Jan 2020

ENHANCEMENT OF MECHANICAL PROPERTIES OF ALLOY 61S BY REINFORCING NANO COMPOSITES

By Roopsandeep Bammidi, K. Siva Prasad

Abstract: During recent decades, a lot of interest had shown in the materials production with nano sized grains. Especially, the aluminum alloys and its composites are widely used for demanding structural applications due to combination of corrosion resistance, formability, weldability and, mechanical properties. The demand for toughness, higher strength and, strength and weight ratio of aluminum alloys for the structural application is ever growing owing to the increasing importance of achieving …

Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 18–36 Read article

Published Subscription 2 Jan 2020

Essential of bearing in materials engineering

By Bangshidhar Goswami, S. K. Prasad, B. N. Choudhary, D. Das, A. Dasgupta, S. Prasad, G. S. Sharma, TPK. Gautam, S. P. Singh, Y. P. Rao, V. Sharma

Abstract: Essentials of bearing have been to maintain lubricant film to prevent metal to metal contact and hence local welding of two surfaces. Tribological and mechanical properties have improved by powder metallurgy route of bearing fabrications. Alloyed non-ferrous plane bearings have better friction coefficients than pure metals. Betterment has appeared in babbit/ bronze particulate reinforced composites. Ni addition has improved performances of graphite-lead free tin bronze composite layers on surface of …

Published in International Journal of Metallurgy and Alloys · Vol. 5, Issue 2, 2019 · pp. 1–17 Read article