Intergranular Corrosion of Nonsensitized Austenitic Stainless Steels
Author:
- 1 January 1968
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 24 (1) , 24-30
Abstract
The effects of alloying additions on the intergranular corrosion of nonsensitized austenitic alloys in boiling nitric acid-dichromate solutions have been determined. Controlled additions of C, N, O, Mn, S, Si and P to a high purity 14% Cr-14% Ni-bal Fe alloy and subsequent corrosion tests in boiling 5 N HNO3-0.46 N Cr+6 solutions have shown that only Si and P promote severe intergranular corrosion susceptibility of nonsensitized alloys. Elimination of Si and P from austenitic alloys of otherwise commercial purity decreases susceptibility to intergranular attack by a factor of six to eight.Keywords
This publication has 3 references indexed in Scilit:
- Impurity adsorption and intergranular corrosion of austenitic stainless steel in boiling HNO3-K2Cr2O7 solutionsCorrosion Science, 1967
- Intergranular Corrosion of Nonsensitized Austenitic Stainless Steels — I. Environmental VariablesCorrosion, 1965
- Aspect electrochimique de la corrosion d'aciers inoxydables austenitiques en milieu nitrique et en presence de chrome hexavalentElectrochimica Acta, 1961