Surface treatment of the AISI 316L after welding and study of corrosion behaviour

Authors

  • Tatiana Liptáková
    Affiliation

    Department of Materials Engineering Department, Univerzitná Žilina

  • Ayman Alaskari
    Affiliation

    Department of Mechanical Production Technology, Shuwaikh

  • Monika Halamová
    Affiliation

    Department of Materials Engineering Department, Univerzitná Žilina

https://doi.org/10.3311/PPtr.7116

Abstract

This work deals with impact of the surface treatment on corrosion resistance of the stainless steel AISI 316L welded by the TIG method. Chemical and mechanical treatment changes chemical composition, component size, surface free energy and topography of surface. These specifications have a great influence on corrosion resistance of the stainless steel which is caused by existence of stable, thin and well adherent passive layer. Surfaces of the welded stainless steel were modified by two mechanical treatment methods (grinding, garnet blasting) and one chemical (pickling). The properties of variously prepared surfaces were studied by SEM. Corrosion behaviour of the specimens with different surface treatment was investigated by exposition tests in the 6% FeCl3 solution and also by the electrochemical polarization in the NaCl solution.

Keywords:

AISI 316L stainless steel; TIG welding; corrosion resistance; surface finishing; electrochemical test

Published Online

2014-02-11

How to Cite

Liptáková, T., Alaskari, A., Halamová, M. (2013) “Surface treatment of the AISI 316L after welding and study of corrosion behaviour”, Periodica Polytechnica Transportation Engineering, 41(2), pp. 143–147. https://doi.org/10.3311/PPtr.7116

Issue

Section

Articles