Radiation-Induced Grain Boundary Segregation of Phosphorus in ASME SA533B Ferritic Pressure Vessel Steel

2008 ◽  
pp. 383-383-16
Author(s):  
D Meade ◽  
RG Faulkner ◽  
D Ellis
Keyword(s):  
Grain Boundary ◽  
Pressure Vessel ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Pressure Vessel Steel ◽  
Vessel Steel ◽  
Radiation Induced

Irradiation Assisted Grain Boundary Segregation in Steels

2006 ◽  
Vol 981 ◽  
Author(s):  
Zheng Lu ◽  
Roy G Faulkner
Keyword(s):  
Grain Boundary ◽  
Boundary Segregation ◽  
Analytical Techniques ◽  
Solute Drag ◽  
Grain Boundary Segregation ◽  
Rate Theory ◽  
Comprehensive Information ◽  
Fusion Applications ◽  
Radiation Induced ◽  
Reactor Pressure

AbstractThe understanding of radiation-induced grain boundary segregation (RIS) has considerably improved over the past decade. New models have been introduced and much effort has been devoted to obtaining comprehensive information on segregation from the literature. Analytical techniques have also improved so that chemical analysis of layers 1 nm thick is almost routine. This invited paper will review the major methods used currently for RIS prediction: namely, Rate Theory, Inverse Kirkendall, and Solute Drag approaches. A summary is made of the available data on phosphorus RIS in reactor pressure vessel (RPV) steels. This will be discussed in the light of the predictions of the various models in an effort to show which models are the most reliable and easy to use for forecasting P segregation behaviour in steels. A consequence of RIS in RPV steels is a radiation induced shift in the ductile to brittle transition temperature (DBTT). It will be shown how it is possible to relate radiation-induced P segregation levels to DBTT shift. Examples of this exercise will be given for RPV steels and for ferritic steels being considered for first wall fusion applications. Cr RIS in high alloy stainless steels and associated irradiation-assisted stress corrosion cracking (IASCC) will be briefly discussed.

Radiation-Induced Grain Boundary Segregation

1998 ◽  
Vol 294-296 ◽  
pp. 67-74 ◽  
Author(s):  
R.G. Faulkner ◽  
S. Song ◽  
D. Meade ◽  
C.C. Goodwin
Keyword(s):  
Grain Boundary ◽  
Boundary Segregation ◽  
Grain Boundary Segregation ◽  
Radiation Induced
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