Influence of deformation on electrochemical properties of Q235 steel-Reference-Cited by-同舟云学术

Influence of deformation on electrochemical properties of Q235 steel

Published:2018-07-01 Issue:3 Volume:62 Page:108-114
ISSN:1804-1213
Container-title:Koroze a ochrana materialu
language:en
Short-container-title:

Author:

Zheng M.¹,Shuai M.²,Yu J.³

Affiliation:

1. School of Chemical Engineering , Northwest University , Xi’an , China

2. School of Physics , Northwest University , Xi’an , China

3. School of Life Sci. & Tech. , Northwest University , Xi’an , China

Abstract

Abstract The influence of deformation on electrochemical properties of Q235 steel is studied. The uni-axial tension of the steel is conducted on universal testing machine to get a series of strain, 0.07%, 6%, 11% and 24%, respectively. The deformation process for strain of 0.07% is controlled by load, and the others are controlled by displacement correspondingly. Afterward, the tests of potentiodynamic polarization and electrochemical impedance spectroscopy are conducted for the deformed steel in 0.01 mol.dm−3 NaCl solution. The results showed that plastic deformation leads to crystalline grains refine and elongate, and crystalline boundary increases, it induces more corrosive possibility and lower corrosive resistance; the corrosion potential of Q235 steel becomes more negative with the increase of deformation amount, and the corrosion current density increases with the amount of deformation; the corrosion resistance decrease with the increase of deformation seriously.

Publisher

Walter de Gruyter GmbH

Subject

General Materials Science

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