Improvement In The Corrosion Rate And Mechanical Properties Of Low Carbon Steel Through Deep Cryogenic Treatment.
Harpreet Singh, Er. B. S. Ubhi, Er. Harvinder Lal.
Keywords: Deep Cryogenic treatment, mild steel, corrosion resistance, Rockwell hardness, heat treatment.
Abstract- Exploration of the benefit of cryotreatment for achieving improvement in corrosion rate of mild steel is a topic of current research interest. This study is concerned with the effect of deep cryogenic treatment at temperature of -1930 C on the corrosion rate and mechanical properties. A series of corrosion rate tests have been carried out to cryotreated samples. The specimen were divided into two groups, the first group was subjected to conventional heat treatment process at a temperature of 9500 C for about 1 hour and the other group was subjected to deep cryogenic treatment for about 36 hours at a temperature of -1930 C, followed by tempering at 1500 C for about 1 hour to both the groups. The results have shown that after DCT the corrosion rate and mechanical properties of the samples were all improved. The changes in microstructure due to (DCT) were clearly noticeable, the grain boundaries were no longer visible and the microstructure consists of baninite, martensite and retained austenite.
. Nirmal S. Kalsi, Rakesh Sehgal, and Vishal S. Sharma , “Cryogenic Treatment of Tool Material: A Review” , Materials and Manufacturing Processes, 25: 1077–1100, 2010
. Dr. Abbas A. Hussein, Murtadha Qasim Idan AL-kinani , “Effect of Cryogenic Treatment on the properties of low carbon A858steel Journal of Engineering.
. Barron, “A Study on the Effect of Cryogenic Treatment on Tool Steel Properties”, Louisiana Technical University Report, Agust 30, 1984.
. S. Sendooran, P. Raja “Metallurgical Investigation On Cryogenic Treated HSS Tool”, International Journal of Engineering Science and Technology (IJEST)Vol.3No.5May2011
. Barron, R.F., R.H. Thompson, “Effect of cryogenic treatment on corrosion resistance ”.