Effect of irradiation on phosphorus segregation

Technical Report · Wed Sep 01 04:00:00 EDT 1982

OSTI ID:6463897

Brimhall, J L; Baer, D R; Jones, R H

Phosphorus strongly segregated to the surface during irradiation of austenitic-type alloys in the temperature range 775 to 925 K. Much weaker but measurable radiation induced segregation of phosphorus occurred in a Ni + 0.03% P alloy. Irradiation under similar conditions produced no measurable phosphorus segregation in ferritic HT-9 or Fe + 0.03% P alloy. The lack of segregation in the ferritic alloys was suggested to result from a weak point defect - impurity interaction in the bcc iron structure while a strong interaction was suggested for the fcc iron structure. The slow accumulation of radiation damage in bcc iron alloys is also consistent with a lack of observable segregation. The evidence strongly suggests a radiation induced mechanism but a radiation enhanced, thermally activated equilibrium segreation cannot be ruled out. 7 figures.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6463897
• Report Number(s): PNL-SA-10326; CONF-821049-11; ON: DE83005553
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360106* -- Metals & Alloys-- Radiation Effects
ALLOY-HT-9
ALLOYS
AUGER ELECTRON SPECTROSCOPY
BEAMS
CHARGED PARTICLES
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
DAMAGE
DATA
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY RANGE
EXPERIMENTAL DATA
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
INFORMATION
ION BEAMS
IONS
IRON
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
METALS
MEV RANGE
MEV RANGE 01-10
MOLYBDENUM ALLOYS
NICKEL
NICKEL ALLOYS
NICKEL IONS
NONMETALS
NUMERICAL DATA
PHOSPHORUS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SEGREGATION
SPECTROSCOPY
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
TRANSITION ELEMENTS