Menu
Search
Filters
Close
Menu

98138 GRAIN BOUNDARY SEGREGATION IN AUSTENITIC STAINLESS STEELS AND EFFECTS ON INTERGRANULAR STRESS CORROSION CRACKING IN LIGHT-WATER REACTOR ENVIRONMENTS

Picture for 98138 GRAIN BOUNDARY SEGREGATION IN AUSTENITIC
Available for download
Product Number: 51300-98138-SG
ISBN: 98138 1998 CP
Author: Stephen M. Bruemmer
$0.00
$20.00
$20.00
Grain boundary composition in austenitic stainless steels established by various equilibrium and nonequilibrium processes is assessed and its possible influence on intergranular stress corrosion cracking (IGSCC) in light-water reactor environments examined. Interfacial Cr concentration is shown to be the dominant material variable promoting IGSCC of austenitic stainless steels in oxidizing high-temperature water. Cracking susceptibility is a direct function of the boundary Cr content regardless of depletion width. Small levels of depletion, 1 to 2 wt% below bulk Cr concentrations (below -17 wt% for 304SS), are sufficient to promote IGSCC. As a result, many observations of irradiation-assisted (IA) SCC in boiling-water reactor environments are consistent with radiation-induced Cr depletion. However, grain boundary Cr depletion does not explain IGSCC in (unsensitized) cold-worked stainless steels or IASCC of stainless steels at low electrochemical potentials (hydrogen-water chemistry). Significant interfacial enrichment of Cr, MO and perhaps B are likely in solution- and mill-annealed stainless steels which may play a role in the IGSCC of cold-worked materials and delay IASCC to higher radiation doses. Existing data indicate that impurities and minor elements which segregate to stainless steel grain boundaries do not have a direct effect on cracking susceptibility. Critical research is needed to isolate causes for IGSCC in high-strength (cold-worked and irradiated) stainless steels.
Grain boundary composition in austenitic stainless steels established by various equilibrium and nonequilibrium processes is assessed and its possible influence on intergranular stress corrosion cracking (IGSCC) in light-water reactor environments examined. Interfacial Cr concentration is shown to be the dominant material variable promoting IGSCC of austenitic stainless steels in oxidizing high-temperature water. Cracking susceptibility is a direct function of the boundary Cr content regardless of depletion width. Small levels of depletion, 1 to 2 wt% below bulk Cr concentrations (below -17 wt% for 304SS), are sufficient to promote IGSCC. As a result, many observations of irradiation-assisted (IA) SCC in boiling-water reactor environments are consistent with radiation-induced Cr depletion. However, grain boundary Cr depletion does not explain IGSCC in (unsensitized) cold-worked stainless steels or IASCC of stainless steels at low electrochemical potentials (hydrogen-water chemistry). Significant interfacial enrichment of Cr, MO and perhaps B are likely in solution- and mill-annealed stainless steels which may play a role in the IGSCC of cold-worked materials and delay IASCC to higher radiation doses. Existing data indicate that impurities and minor elements which segregate to stainless steel grain boundaries do not have a direct effect on cracking susceptibility. Critical research is needed to isolate causes for IGSCC in high-strength (cold-worked and irradiated) stainless steels.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 98132 Post-Irradiation Annealing Effects of
Available for download

98132 Post-Irradiation Annealing Effects of Austenitic Stainless Steels in IASCC

Product Number: 51300-98132-SG
ISBN: 98132 1998 CP
Author: Kyoichi Asano, Koqji Fukuya, Hiroshi Sakamoto, Takahiko Kato, Klyotomo Nalmta, Ryoei Katsura, Yosh
$20.00
Picture for 99451 METALLURGICAL FACTORS INFLUENCING THE
Available for download

99451 METALLURGICAL FACTORS INFLUENCING THE SUSCEPTIBILITY OF NON-SENSITIZED STAINLESS STEEL TO INTERGRANULAR STRESS-CORROSION CRACKING IN HIGH-TEMPERATURE, HIGH-PURITY WATER ENVIRONMENTS

Product Number: 51300-99451-SG
ISBN: 99451 1999 CP
Author: Masatsune Akashi, Guen Nakayama, Hajime Komatsu , Seizaburo Abe
$20.00
Picture for 97192 MECHANISTIC DIFFERENCES IN TRANSGRANULAR
Available for download

97192 MECHANISTIC DIFFERENCES IN TRANSGRANULAR AND INTERGRANULAR CRACKING OF AUSTENITIC STAINLESS STEELS

Product Number: 51300-97192-SG
ISBN: 97192 1997 CP
Author: Vimal H. Desai
$20.00
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