THE EFFECT OF CU2-CORROSION CRACKING SUSCEPTIBILITY OF ALPHA-BRASS INCUPRIC NITRATE SOLUTIONS( CONCENTRATION ON THE STRESS)

Authors
GIORDANO CM DUFFO GS GALVELE JR
Citation
Cm. Giordano et al., THE EFFECT OF CU2-CORROSION CRACKING SUSCEPTIBILITY OF ALPHA-BRASS INCUPRIC NITRATE SOLUTIONS( CONCENTRATION ON THE STRESS), Corrosion science, 39(10-11), 1997, pp. 1915-1923
Citations number
17
Journal title
Corrosion science → ACNP
ISSN journal
0010938X
Volume
39
Issue
10-11
Year of publication
1997
Pages
1915 - 1923
Database
ISI
SICI code
0010-938X(1997)39:10-11<1915:TEOCCS>2.0.ZU;2-F
Abstract
The stress corrosion cracking (SCC) susceptibility of alpha-brass in a queous cupric nitrate solutions was studied. The effect of the Cu2+ io n concentration on the stress corrosion crack propagation rate (CPR) w as measured. A linear relationship between the logarithm of the CPR an d the logarithm of the Cu2+ concentration was found in all the alloys studied. The slope of this relationship was very close to that reporte d for the cuprous ion exchange current density and the cupric ion conc entration: delta log i(o(Cu+-->Cu))/delta log [Cu2+]. All the cracks f ound were transgranular, and the crack propagation mechanism was expla ined through the surface mobility SCC mechanism. (C) 1997 Elsevier Sci ence Ltd.