Flow corrosion behaviour of austenitic stainless steels UNS S30403 and UNS S31603


Wharton, J.A. and Wood, R.J.K. (2005) Flow corrosion behaviour of austenitic stainless steels UNS S30403 and UNS S31603. Corrosion, 61, 792-806.

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Description/Abstract

Metastable pitting behavior for two grades of austenitic stainless
steels, Type 304L (UNS S30403) and Type 316L (UNS
S31603), has been investigated for a range of controlled
hydrodynamic conditions: static, laminar, and turbulent
(Reynolds numbers of 1,000, 2,000, 3,000, 10,000, 50,000,
and 75,000). Metastable pitting was evident under all fl ow
regimes. Stable pit growth was most evident for laminar fl ow
conditions immediately before the transition to turbulent fl ow
and during the approach to the so-called “critical velocity”
(~1.5 m/s) at Reynolds numbers of approximately 2,000 and
50,000, respectively. The corrosion behavior of the two austenitic
stainless steels has been compared with a superduplex
stainless steel, UNS S32760, exposed to the same hydrodynamic
conditions.

Item Type: Article
Related URLs:
Keywords: critical velocity, electrochemical noise, hydrodynamics, pipe fl ow, pitting, stainless steel
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 23341
Date Deposited: 12 Feb 2007
Last Modified: 27 Mar 2014 18:12
URI: http://eprints.soton.ac.uk/id/eprint/23341

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