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Electrochemical Properties of 304 Stainless Steel Under Proportional and Non-Proportional Multiaxial Loading Condition

[+] Author Affiliations
Yuhui Huang, Fu-Zhen Xuan, Shan-Tung Tu

East China University of Science and Technology, Shanghai, China

Takamoto Itoh

University of Fukui, Fukui, Japan

Paper No. PVP2012-78043, pp. 697-701; 5 pages
doi:10.1115/PVP2012-78043
From:
  • ASME 2012 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Toronto, Ontario, Canada, July 15–19, 2012
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5505-8
  • Copyright © 2012 by ASME

abstract

Corrosion fatigue tests and electrochemical tests under proportional and non-proportional loading conditions were conducted on 304 stainless steel in 0.63 mol/L sodium chloride solution at the room temperature. Two biaxial loading paths were applied to study the effect of proportional and nonproportional loadings on polarization properties as well as the formation potential of pits. Surface observations of multiaxial corrosion fatigue specimens were carried out by SEM. It was shown that the proportional loading had a more significant effect on corrosion rate compared with non-proportional loading. The continuous rotation of principal stress plane when applied nonproportional loading inhibits the pit formation.

Copyright © 2012 by ASME
Topics: Stainless steel

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