Corrosion behavior of a 304‐oxide dispersion strengthened austenitic stainless steel in supercritical water. Issue 3 (8th October 2015)

• Record Type: Journal Article
• Authors: Li, S. F.; Zhou, Z. J.; Zhang, L. F.; Zhang, L. W.; Hu, H. L.; Wang, M.; Zhang, G. M.
• Is Part Of: Materials and corrosion. Volume 67:Issue 3(2016:Mar.)
• Page Start: 264
• Page End: 270
• Publication Date: 2015-10-08
• Subjects: austenitic stainless steel -- corrosion -- stress corrosion cracking; Materials -- Periodicals; Metals -- Periodicals; Corrosion and anti-corrosives -- Periodicals; 620.1122305
• DOI: 10.1002/maco.201508359
• Languages: English
• ISSNs: 0947-5117

Abstract

Abstract : The corrosion behavior of a 304 oxide dispersion strengthened (ODS) austenitic stainless steel after being exposed to supercritical water (SCW) with dissolved oxygen of 300 ppb at 600 °C/25 MPa was studied. By the means of a least‐square fit, the weight gain (Δ w ) of the samples as a function of exposure time ( t ) could be described by the equation Δ w = 8.011 × t 0.459 . An approximately parabolic time law in this specified SCW environment can be assumed. A triple protective oxide layer formed on the surface of the metal with the exposure time up to 1000 h. Furthermore, the result of slow‐strain rate tensile (SSRT) test indicated that the 304‐ODS austenitic stainless steel was not susceptible to stress corrosion cracking (SCC) in SCW at 600 °C/25 MPa.