Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
October 2022 - September 2023
Main Project: “Kleinproben” - Fracture mechanics investigation of neutron-irradiated reactor pressure vessel (RPV) steels using small specimens
Fracture toughness testing of mini-C(T) specimens using the Master Curve concept according to ASTM E1921
Characterization of bulk microstructure and fracture surfaces and using Scanning Electron & Optical Microscopy and Energy-dispersive X-ray
March 2021 - January 2022
Ion irradiation effects on Fe-Cr alloys and RPV steels
Nanoindenation response of ion irradiated alloys using Berkovich indenter
Understanding the effect of irradiation with ions of different energies and neutron irradiation
Theoretical modeling of hardness in terms of damage created by ion irradiation
November 2020 - March 2021
Spherical Indentation on P91 and ODS steel
Formulation of protocols for the conversion of indentation stress-strain curves to conventional uniaxial stress-strain curves
Extraction of mechanical properties using spherical indentation in the elastic-plastic regime
Spherical indentation on ion-irradiated samples and its comparison with unirradiated samples
September 2019 - September 2022
Project: "Kleinproben" Fracture mechanics investigations of reactor pressure vessel (RPV) steels by means of sub-sized specimens
Microstructure analysis of low alloy RPV steels
Determination of the reference temperature according to the master curve concept
Determination of shift in reference temperature of neutron-irradiated RPV steels
Fractography of tested samples using scanning electron microscopy and analysis of fracture initiation points
Detailed comparison of results from standard and sub-sized specimens
July 2018 - August 2019
Material focus: 9Cr ODS Eurofer steel (ferritic/martensitic) – hot rolled and heat treated
Fracture toughness testing of small C(T) specimens using unloading compliance and normalization methods in different specimen orientations and at different temperatures
Microstructure-mechanical properties correlation and fractography using electron microscopy
Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany in affiliation with
University of Siegen, Siegen, Germany
September 2014 - June 2018
Thesis title: The influence of microstructure on the fracture behaviour of ferritic ODS steels
Supervisors: Prof. Dr.-Ing. H.-J. Christ (Uni Siegen) and Prof. Dr.-Ing. Martin Heilmaier (Karlsruhe Institute of Technology)
Internal supervisor: Dr. Hans-Werner Viehrig (HZDR)
Quasi-static fracture toughness testing of small C(T) specimen using unloading compliance testing for various materials in different orientations and at different temperatures
Microstructural investigation of ferritic ODS steels using SEM, EBSD and TEM and its correlation with fracture behaviour
Fractography and crack propagation analysis using electron microscopy
Hands-on experience in operating SEM, EDS, EBSD for microstructure characterization
Umicore, Technical Materials Department, Hanau, Germany
April 2013 - November 2013
Master thesis title: Investigation of microstructure and mechanical properties of brazed joints with low silver containing brazing alloys
Characterization of microstructure using SEM and optical microscope
Characterization of mechanical properties using tensile tests and hardness measurements
Technische Universität Darmstadt, Darmstadt, Germany
October 2011 - November 2013
Exposed to various aspects in materials science, solid state physics, characterization methods of materials, quantum mechanics, surface & interfaces, ion beam modification in materials, mass spectrometry, ceramic synthesis, mechanical properties of ceramics, mechanical properties of metals, engineering microstructure and materials chemistry
Advanced research lab (3rd semester) in Dispersive Solids research group. Worked on polymer-derived SiOC/ZrO2/TiO2 ceramic nano-composites with enhanced high-temperature stability and Zircon formation
Engineers India Limited, New Delhi, India
August 2008 - August 2011
Analysing critical piping for stress and suggesting changes in pipe routing using Caesar II and autopipe
Providing pipe supporting and design of special supports
Reviewing stress and material reports as PMC contractor
Site survey and creation of scope of work in offshore platforms
Creating offshore PMS (Piping Material Specification) and VMS (Valve Material Specification) standards to be used as a reference for future projects
Delhi College of Engineering, New Delhi, India
August 2004 - May 2008
Exposed to various aspects in mechanical engineering like engineering drawing, thermodynamics, power plant engineering, strength of materials, kinematics/dynamics of machines, machine design, heat and mass transfer, combustion engines
Summer Industrial Training in Maruti Suzuki India Limited – Project on implementation of Lock out Tag Out devices and on implementation of OSHA (Occupational Safety and Health Administration) in assembly shops
Final year project on mathematical modelling of abrasive jet machining
Apeejay School Sheikh Sarai, New Delhi, India
1990 - 2004