1. Material Characterization Division, Vikram Sarabhai Space Center, Thumba P.O., Trivandrum 695022, India
2. Material Characterization Division, Vikram Sarabhai Space Center, Thumba P.O., Trivandrum 695022, India (Corresponding author), e-mail: narayanamurty_susarla@vssc.gov.in, https://orcid.org/0000-0001-5948-970X
3. Rocket Motors Fabrication Activities, Vikram Sarabhai Space Center, Thumba P.O., Trivandrum 695022, India
4. Materials and Metallurgy Group, Vikram Sarabhai Space Center, Thumba P.O., Trivandrum 695022, India
5. Materials and Mechanical Entity, Vikram Sarabhai Space Center, Thumba P.O., Trivandrum 695022, India