Effects on corrosion resistance of rebar subjected to deep cryogenic treatment
- 1. Dept. of Mechanical Engineering, College of Engineering Guindy, Anna University, Chennai (India)
- 2. Structural Engineering Research Centre, CSIR Campus, Chennai (India)
Description
An attempt has been made to evaluate the effect of deep cryogenic treatment on the corrosion resistance of rebar. Corrosion behavior of samples subjected to deep cryogenic treatment and samples tempered after deep cryogenic treatment was studied by linear polarization method. The Vickers hardness and ultimate tensile strength of the samples were also measured. The possible mechanism for increase in corrosion resistance has been explained based on Scanning electron micrographs (SEM) and X-Ray diffraction (XRD) study. The morphology of the corroded surfaces of the samples was studied using Atomic force microscopy (AFM). It was found that there is 69 % improvement in corrosion resistance because of deep cryogenic treatment, further it was seen that the increase in corrosion resistance was due to the contribution of increased pearlite phase. Deep cryogenic treatment had no adverse effect on ultimate tensile strength and hardness, which are crucial properties to be considered for rebar
Additional details
Publishing Information
- Journal Title
- Journal of Mechanical Science and Technology
- Journal Volume
- 31
- Journal Issue
- 1
- Series
- 43 refs, 17 figs, 6 tabs
- Journal Page Range
- p. 123-132
- ISSN
- 1738-494X
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 48050089
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ATOMIC FORCE MICROSCOPY; CORROSION RESISTANCE; CRYOGENICS; MORPHOLOGY; POLARIZATION; SCANNING ELECTRON MICROSCOPY; TENSILE PROPERTIES; VICKERS HARDNESS; X-RAY DIFFRACTION
- Descriptors DEC
- COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; MECHANICAL PROPERTIES; MICROSCOPY; SCATTERING