The effect of refractory based alloying elements on the oxidation properties of γ titanium aluminides for its use as a bond coat over the titanium aluminide substrate in jet engine turbine blades is being investigated and the exact alloying effect of these elements on the atomic mobility of Al and Ti in the γ phase is to be deciphered by conducting pseudo binary diffusion based experiments. CALPHAD approach will be further employed to estimate various thermodynamic parameters for a comprehensive understanding of the system.
Supervisor: Dr. Sangeeta Santra, Assistant Professor, IIT Delhi
Cladding and Friction Stir Processing (IIT (BHU), Varanasi) (May, 2019 – October, 2019)
Worked on cladding of mild steel by Gas Metal Arc Welding process. Optimization of parameters was done to obtain a defect-free and continuous clad layer of optimum thickness. This was followed by characterization and thereafter Friction Stir Processing of the machined clad layer. Sampling was done for characterizations such as optical microscopy, SEM, XRD, hardness test, etc. Microstructural evaluation was done to assess the quality of the friction stir processed clad layer.
Supervisors: Dr. Mohd Zaheer Khan Yusufzai (Associate professor, IIT (BHU), Varanasi) and Dr. Harpreet Singh (Assistant professor, IIITDM Jabalpur)
Welding of Stainless Steel (IIT (BHU), Varanasi) (May 2018 – Jul 2018)
Weldability of different grades of stainless steel was tested by GMAW and GTAW welding techniques. Characterizations including metallographic study of welded samples were performed after the welding experimentation. The work done was duly acknowledged by the authors of the research paper titled “Effect of heat input on microstructure and mechanical properties in gas metal arc welding of ferritic stainless steel” published in Materials Research Express journal.
Supervisor: Dr. Mohd Zaheer Khan Yusufzai (Associate professor, IIT (BHU), Varanasi)