Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

03536 STRESS CORROSION CRACKING OF H.C.P. METALS AND ALLOYS IN IODINE-METHANOL SOLUTIONS

Picture for 03536 STRESS CORROSION CRACKING OF H.C.P.
Available for download
Product Number: 51300-03536-SG
ISBN: 03536 2003 CP
Author: S. B. Farina, G. S. Duffo, J. R. Galvele
$0.00
$20.00
$20.00
The stress corrosion cracking (SCC) susceptibility of h.c.p, metals was studied. The alloys used were: zirconium (UNS R60702), Zircaloy-4 (UNS R60804) and titanium (UNS R50400). The studies were performed in a 10 g/L iodine-methanol solution. SCC was observed in all the systems studied, which was always preceded by intergranular attack. It was found that the rate-controlling step of the intergranular propagation was the diffusion of iodine to the tip of the crack. It is not clear if the mechanism of the intergranular attack is due to some sort of chemical attack of the disrupted atomic structure along the grain boundaries, or to the anodic dissolution of an unidentified species segregated along the grain boundaries. After the intergranular penetration reached a certain value, a transition to transgranular cracking mode took place. The length of intergranular attack as a function of time was measured using interrupted strain rate tests. From these data and the overall (Intergranular + Transgranular) crack propagation rate, the rate for transgranular cracking was evaluated. It was concluded that the transgranular part of the cracking was the real SCC process. When analyzed this part of the process, it was found that the crack velocities measured agreed with the predictions of the surface mobility-SCC mechanism. In the systems studied in the present work, the species responsible for inducing SCC are believed to be titanium tetraiodide (TiI4) and zirconium tetraiodide (ZrI4) for titanium and zirconium alloys respectively. Keywords" titanium, zirconium, Zircaloy-4, stress-corrosion-dracking, intergranular attack, iodine
The stress corrosion cracking (SCC) susceptibility of h.c.p, metals was studied. The alloys used were: zirconium (UNS R60702), Zircaloy-4 (UNS R60804) and titanium (UNS R50400). The studies were performed in a 10 g/L iodine-methanol solution. SCC was observed in all the systems studied, which was always preceded by intergranular attack. It was found that the rate-controlling step of the intergranular propagation was the diffusion of iodine to the tip of the crack. It is not clear if the mechanism of the intergranular attack is due to some sort of chemical attack of the disrupted atomic structure along the grain boundaries, or to the anodic dissolution of an unidentified species segregated along the grain boundaries. After the intergranular penetration reached a certain value, a transition to transgranular cracking mode took place. The length of intergranular attack as a function of time was measured using interrupted strain rate tests. From these data and the overall (Intergranular + Transgranular) crack propagation rate, the rate for transgranular cracking was evaluated. It was concluded that the transgranular part of the cracking was the real SCC process. When analyzed this part of the process, it was found that the crack velocities measured agreed with the predictions of the surface mobility-SCC mechanism. In the systems studied in the present work, the species responsible for inducing SCC are believed to be titanium tetraiodide (TiI4) and zirconium tetraiodide (ZrI4) for titanium and zirconium alloys respectively. Keywords" titanium, zirconium, Zircaloy-4, stress-corrosion-dracking, intergranular attack, iodine
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for Methanol-Induced Internal Stress Corrosion Cracking in a Northern Petroleum Pipeline
Available for download

51314-3985-Methanol-Induced Internal Stress Corrosion Cracking in a Northern Petroleum Pipeline

Product Number: 51314-3985-SG
ISBN: 3985 2014 CP
Author: Barbara Padgett
Publication Date: 2014
$20.00
Picture for 98261 STRESS CORROSION BEHAVIOR OF Ru-ENHANCED
Available for download

98261 STRESS CORROSION BEHAVIOR OF Ru-ENHANCED ALPHA-BETA TITANIUM ALLOYS IN METHANOL SOLUTIONS

Product Number: 51300-98261-SG
ISBN: 98261 1998 CP
Author: T.A. Bednarowicz, R.W. Schutz, J.M. Horrigan
$20.00
Picture for Titanium Alloy Stress Corrosion Resistance to Methanol Vapor in Hydrocarbon Gas Export Systems
Available for download

51318-10921-Titanium Alloy Stress Corrosion Resistance to Methanol Vapor in Hydrocarbon Gas Export Systems

Product Number: 51318-10921-SG
Author: Ronald W. Schutz / Birendra Jena / Ramgopal Thodla / Heath W. Walker
Publication Date: 2018
$20.00

Susceptibility of Grades 23 and 29 titanium Tapered Stress Joint (TSJ) forgings to gas phase methanolic Stress Corrosion Cracking (SCC) was measured in deaerated, dry 0-0.5 wt.% and saturated methanol-containing methane gas environments at 25C in a two phase laboratory program.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support