New Proposals submitted.

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S.No. Number Start Date End Date Project Leader Category Type Core Area/ Sub Area Status/ Action/ Resubmission/ Reason for Cancel
         
1NML/IPSG/2017/2018/89632017-04-012018-03-31Rajesh Kumar RaiR&DFull tenure(1 year)Materials Evaluation/ Mechanical Behaviour of Materialsreview/ submit

Title: High Temperature Mechanical Deformation and Fracture Behavior of Nickel Based Super-alloys (module III).

Abstract: The CM 247 alloy is designed primarily for directionally solidified turbine blade and vane applications. Directional solidification (DS) reduces the number of grain boundaries transverse to the primary loading axis, obtaining improved creep resistance. In DS blades the [001] crystallographic orientation is the preferred orientation along the blade principal axis. During service condition, these components are exposed to severe stress conditions and temperature fluctuation. These service conditions induce low cycle fatigue, creep and creep-fatigue damage in the material. The present proposal aims at studying creep-fatigue interaction behaviour of CM 247 DS nickel base superalloys at temperatures above 750oC and 850oC and studying the microstructural changes through extensive scanning and transmission electron microscopy.

2NML/IPSG/2020/2021/18922020-01-312021-03-31Ibrahim Momoh Bello OmiogbemiScholastic ResearchFull tenure(1 year)Materials Engineering/ Materials Joiningproposal/ submit

Title: Effect of Electrode Composition on the Mechanical and Corrosion Behaviour of Welded Duplex Stainless Steel in Corrosive Environments.

Abstract: The underutilization and lack of full harnessing of our vast local mineral deposits for flux formulation has pose a great challenge in the production of welding consumables (electrodes) in many developing countries. However, there has been a great need in the art to formulate flux for electrode coating that is more suitable for duplex stainless steels (DSS) and other related stainless steels welding without impairing the ferrite-austenite phases and with excellent mechanical and corrosion resistant properties, suitable for many applications. This is because the corrosion behaviour of the welded structure of the steel alloys with arc welding process and with the right electrode composition have not yet been fully understood. This proposal intend to develop and carry out performance evaluation on duplex stainless steel electrodes for arc welding method using precursor materials as flux for the formulation. The proposed research would also evaluate the mechanical, microstructural, thermal and corrosion resistant characteristics of both the formulated fluxes and the final welded joints in order to establish its applicability and performance in service environments.

3NML/IPSG/2020/2021/446492020-01-312021-03-31Ibrahim Momoh Bello OmiogbemiScholastic ResearchFull tenure(1 year)Materials Engineering/ Materials Joiningproposal/ submit

Title: Effect of Electrode Composition on the Mechanical and Corrosion Behaviour of Welded Duplex Stainless Steel in Corrosive Environments.

Abstract: The underutilization and lack of full harnessing of our vast local mineral deposits for flux formulation has pose a great challenge in the production of welding consumables (electrodes) in many developing countries. However, there has been a great need in the art to formulate flux for electrode coating that is more suitable for duplex stainless steels (DSS) and other related stainless steels welding without impairing the ferrite-austenite phases and with excellent mechanical and corrosion resistant properties, suitable for many applications. This is because the corrosion behaviour of the welded structure of the steel alloys with arc welding process and with the right electrode composition have not yet been fully understood. This proposal intend to develop and carry out performance evaluation on duplex stainless steel electrodes for arc welding method using precursor materials as flux for the formulation. The proposed research would also evaluate the mechanical, microstructural, thermal and corrosion resistant characteristics of both the formulated fluxes and the final welded joints in order to establish its applicability and performance in service environments.