Potentiodynamic corrosion studies on laser beam welded austenitic stainless steel AISI 321

14th International Conference on Science, Engineering and Technology

自然科学;工业技术

Nair, Adithya R^1 ; Niranjhan, P.^1 ; Abijith, M.N.^1 ; Arivarasu, M.^2 ; Manikandan, M.^3 ; Padmanaban, R.^1 ; Arivazhagan, N.^3

Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham University, Coimbatore, Tamil Nadu

641112, India^1

Center for Innovative Manufacturing Research, VIT University, Vellore, Tamil Nadu

632014, India^2

School of Mechanical Engineering, VIT University, Vellore, Tamil Nadu

632014, India^3

关键词: Austenitic stainless;    Corrosion characteristics;    Corrosion current;    Corrosion studies;    Defect-free;    Micro-structural;    Potentiodynamics;    Weld zone;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/263/6/062031/pdf
DOI  :  10.1088/1757-899X/263/6/062031

来源: IOP

【 摘 要 】

In this study, the microstructure and corrosion characteristics of laser beam welded austenitic stainless plates has been studied. CO2Laser beam produced defect free weldments in AISI 321 with no trace of heat affected zone. The microstructural studies revealed distributed ferrites in the weld zone. Potentio-dynamic polarization studies were carried out on the weldments in 5% NaCl environment in order to understand corrosion current, potential and rate.