Abstract
The effect of different heat treatment such as annealing, normalizing, and quenching on microstructural characterization and corrosion resistance have been investigated. Heating of the samples were done at 910 ℃ in a muffle furnace for 2 h. After that samples were cooled in the same furnace (annealing), air (normalizing) and water (Quenching). Followed by a detailed microstructural characterization was done using optical microscopy and XRD techniques. The corrosion properties in terms of corrosion rate was analyzed by weight loss method in 3.5 wt.% NaCl solution. Microstructure analysis shows the presence of ferrite and pearlite grain in as received, annealed and normalized 0.6% C steel, whereas martensite grains are observed in quenched samples. Phase analysis shows the ferrite and carbide phase in as received, annealed and normalized samples, whereas only ferrite phase is present in quenched samples. There is a significant improvement in corrosion resistance from 4.91 × 10–5 mm/year for as received samples to 3.12 × 10–5 − 2.23 × 10–5 mm/year for heat treated samples, whereas improvement is more in quenched sample (2.23 × 10−5 mm/year) as compared to annealed (3.12 × 10–5 mm/year) and normalized sample (3.12 × 10–5 mm/year).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.