Study The Wear Properties of Al-Cr-Mo Grey Cast Iron Alloys Produced For Metal Cutting Tools Application
Journal Title: American journal of Engineering Research - Year 2018, Vol 7, Issue 1
Abstract
This work investigated the microstructures and wear properties of produced Al-Cr-Mo grey cast iron alloys from grey cast iron scraps for metal cutting tools application. Six different alloys of grey cast iron with major compositions of Fe-3%Al-2.5%Cr-2%Mo, Fe-3%Al-2%Cr-2%Mo, Fe-3%Al-2.5%Cr-1.5%Mo, Fe3%Al-2%Cr-1.5%Mo, Fe-3%Al-1.5%Cr-1.5%Mo and Fe-3%Al-1.5%Cr-2%Mo were produced. The produced alloys were aged at ageing different temperatures of 150oC, 200oC, 250oC, 300oC and 350oC for forty-eight hours. Their microstructural analysis after ageing was done using Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometer (EDS). Also chemical analysis and wear analysis were conducted. The results of the chemical analysis showed the reduction in carbon, silicon and phosphorus contents thereby reduced carbon equivalent and changed the alloys from hypereutectic to hypoeutectic. The result of microstructural analysis shows that various microstructural phases such as nitrides, primary carbides and eutectic carbides were precipitated in the pearlitic matrix with eutectic carbide (Cr7C3) having the highest peak intensity in the XRD diffraction pattern. The wear rate decreases with the ageing temperature until 300oC at which the minimum wear rate was obtained for each of the alloys, while wear resistance increases with the ageing temperature until 300oC at which the maximum wear resistance was obtained for each of the alloys.
Authors and Affiliations
Oyetunji, A, Opaluwa, A. I., Seidu, S. O
Formation of Ybus Martix By Using Direct Inspection MethodFor “12”Bus Power System.
Power flow analysis is the backbone of power system analysis and design. They are necessary for planning, operation, economic scheduling and exchange of power between utilities. The principal information of power flow an...
“Pneumatic Effect On Fibre Optic Transmission Line; Analysis And Survivability Strategy, With Bias To Nigerian Situation’
Optic fibre has a good advantage over other data transmission medium for haulage over long distance communication. Its characteristic fidelity has endeared it to the world providers of broadband as backbone for telecommu...
Experimental Investigation of Electrical Conductivity and Ph of Mango Bark (Mangifera Indica) Based Nanofluid
Over two decades now the preparation and study of the propertiesof nanofluids based on metallic and non-metallic oxides have received considerable attention. This researchinvestigated the use of biomaterial (mango bark)...
Feature Selection Optimization Solar Insolation Prediction Using Artificial Neural Network: Perspective Bangladesh
This paper presents a new climatological feature selection model using artificial neural network by utilizing the real world data for Bangladesh, called as FSOSIP. In this analysis back propagation algorithm is applied....
Hazardous Effects of Industrial Effluents on Ukwaka Stream and the Ecosystemin Nnewi, Nigeria
Careless disposal of untreated industrial waste on surface water might affect the physicochemical characteristics of stream ecosystem. The aim of this study was to evaluate the effects of industrial waste disposal on sur...