Nani Babu

Scientific Officer & Postdoctoral Research Fellow in Materials Science

Kalpakkam, IN.

About

Highly accomplished Scientific Officer and award-winning PhD recipient with extensive expertise in materials science, focusing on fatigue crack initiation and growth for high-temperature structural applications. Developed a unified framework for predicting crack growth behavior in advanced alloys, significantly contributing to reactor component integrity and advancing material reliability. Currently seeking to leverage advanced research skills and leadership experience to drive innovative projects within a Postdoctoral Fellowship.

Work

Indira Gandhi Centre for Atomic Research (IGCAR)

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Scientific Officer

Kalpakkam, Tamil Nadu, India

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Summary

Leads advanced research in materials science, specializing in fatigue crack growth and structural integrity for critical high-temperature applications.

Highlights

Extended fatigue crack growth methodology to ferritic steels (P91, 9Cr-1Mo) across various ageing conditions, investigating dynamic strain ageing and crack growth behavior.

Developed methodologies for evaluating interface fracture toughness in coated systems (e.g., SS316L(N)/NiCrB), directly enhancing reactor component integrity assessments.

Contributed to the Indian AUSC mission by generating high-temperature fatigue crack growth design data for alloys (Alloy 617 and 625) in the range of 550-800 °C.

Supervise and advise graduate and PhD students, fostering next-generation research talent in materials science.

Education

Homi Bhabha National Institute (HBNI)

Kalpakkam, Tamil Nadu, India
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Ph.D. Engineering Science

Courses

Thesis: “Evaluation of fatigue crack growth behaviour of SS316L(N) and their welds using a unified approach.”

Indian Institute of Technology, BHU

Varanasi, Uttar Pradesh, India
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M.Tech Materials Technology

Courses

Mechanical and Physical Metallurgy

Non-Ferrous Metal and Materials Processing

Andhra University

Visakhapatnam, Andhra Pradesh, India
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M.Sc. Physical Chemistry

Courses

Thermodynamics

Chemical Kinetics

Group Theory

Quantum Chemistry and Electrochemistry

Andhra University

Visakhapatnam, Andhra Pradesh, India
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B.Sc. Mathematics, Physics, Chemistry

Awards

Best Paper Award (ICONS)

ICONS

Awarded for research on correlation of different load ratios fatigue crack growth behavior of SS316L(N).

Best PhD Thesis Award

Homi Bhabha National Institute (HBNI)

Recognized for outstanding doctoral research on fatigue crack growth behavior of SS316L(N) and their welds.

Certificate of Appreciation for Best Ph.D. Thesis

Indira Gandhi Centre for Atomic Research (IGCAR)

Awarded for exceptional contributions to doctoral research in materials science.

Best Paper Award (National Seminar on Welding Science & Technology (NSWEST))

National Seminar on Welding Science & Technology

Awarded for research on hardfacing alloy - stainless steel interface fracture behavior under quasi-static and dynamic loads.

Best Paper Award (NMD ATM, Indian Institute of Metals)

Indian Institute of Metals

Recognized for research on characterization of deformation and fracture resistance of a reduced activation ferritic steel.

Best Paper Award (IIM Kalpakkam Chapter)

IIM Kalpakkam Chapter

Awarded for research on the effect of nitrogen on the fatigue crack growth behavior of 316L austenitic stainless steels.

Publications

Application of Two-Parametric Approach to Fatigue Damage. In Fundamentals of Fatigue Fracture (pp. 69-109).

Jenny Stanford Publishing

Co-authored a publication detailing the application of a two-parametric approach to fatigue damage.

Effect of Long Term Aging on Fracture Resistance of Modified 9Cr-1Mo (P91) Steel.

Journal of Materials Engineering and Performance, 35(10), pp.10308-10324

Co-authored research on the long-term aging effects on fracture resistance in modified 9Cr-1Mo steel.

Microstructure and mechanical property assessment of hot wire TIG and activated TIG hybrid weld joint of AISI 316L (N) stainless steel.

Welding in the World, pp.1-12

Co-authored a paper assessing the microstructure and mechanical properties of hot wire TIG and activated TIG hybrid weld joints.

Monitoring interface cracks in hardfaced coatings using acoustic emission.

Welding in the World, (2025) pp.1-19

Co-authored a publication on monitoring interface cracks in hardfaced coatings using acoustic emission.

Fatigue crack growth behaviour of P91 steel base and weld in Paris and threshold regimes at different temperatures.

Materials at High Temperatures (2025): 1-8

Co-authored research on the fatigue crack growth behavior of P91 steel base and weld at varying temperatures.

Study of the creep crack growth behavior of interface of a dissimilar weld between Alloy617 and 10Cr steels, Materials Science and Engineering: A 927, (2025) 148008

Materials Science and Engineering: A

Co-authored a study on the creep crack growth behavior of a dissimilar weld interface between Alloy617 and 10Cr steels.

Effect of Environment on the Fatigue Crack Growth Behavior of Nitrogen-Alloyed Stainless Steel, Metallurgical and Materials Transactions A 56 (5), (2025)1875-1886

Metallurgical and Materials Transactions A

Co-authored research on the environmental effects on fatigue crack growth behavior of nitrogen-alloyed stainless steel.

Languages

English

Skills

Materials Science & Engineering

Fatigue Crack Growth, Structural Integrity, High-Temperature Applications, Ferritic Steels, Stainless Steels (SS316L(N), SS304HCu), Advanced Alloys (Alloy 617, 625), Weld Metals, Fracture Mechanics, Creep-Fatigue Interaction, Dynamic Strain Ageing, Interface Fracture Toughness, Microstructural Analysis, Mechanical Testing, Material Reliability.

Experimental & Analytical Techniques

Acoustic Emission, Digital Image Correlation, Non-Destructive Testing, Unified Approach (Fatigue Crack Growth), Kitagawa Approach, Cohesive Zone Simulation, Two-Parametric Approach.

Metallurgy & Materials Processing

Physical Metallurgy, Mechanical Metallurgy, Non-Ferrous Metals, Materials Processing, Welding Science (TIG, Activated TIG Hybrid), Alloy Design, Heat Treatment, Martensite Transformation, Residual Stresses.

Chemical Sciences

Thermodynamics, Chemical Kinetics, Quantum Chemistry, Electrochemistry.

Research & Development

Experimental Design, Data Analysis, Methodology Development, Scientific Writing, Peer Review, Academic Supervision, Grant Proposal Development (MSCA PF).