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Stress Corrosion Cracking Susceptibility of Type 16MnR Low-Alloy Steel in Oil Refining Environment

[+] Author Affiliations
Zhiming Lu, Chenhui Zhu, Honggang Gao

Zhejiang University of Technology, Hangzhou, Zhejiang, China

Zhaoai Li

Hangzhou Petrochemical Company Limited, Hangzhou, Zhejiang, China

Paper No. PVP2011-57198, pp. 625-629; 5 pages
doi:10.1115/PVP2011-57198
From:
  • ASME 2011 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Baltimore, Maryland, USA, July 17–21, 2011
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-4456-4
  • Copyright © 2011 by ASME

abstract

The stress corrosion cracking susceptibilities of type 16MnR low-alloy steel in simulated oil refining environment were investigated by slow strain rate test. Many research works have been done to study the single solution parameter effect on the stress corrosion cracking, such as H2 S concentration or Cl− content, but less had been done for the interactive effect of the multiparameter. In this work, the separate and interactive effects of H2 S concentration, Cl− content, temperature and pH value on stress corrosion cracking susceptibilities were studied. By stepwise regression analysis of test results, the effect notabilities of medium parameters on stress corrosion cracking susceptive index were revealed. It could be conclude that the effect of H2 S concentrations was most notable to susceptive indexes, there was no notable correlativity between Cl− content and susceptive indexes, temperature and H2 S played interactive role on the susceptive indexes.

Copyright © 2011 by ASME

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