Observation of grain boundary segregation on an atomic scale in a Fe-0. 04% P alloy by atom-probe FIM

Conference · Mon Dec 31 23:00:00 EST 1979

OSTI ID:6575171

Sakurai, T; Kuk, Y; Grabke, H J; Birchenall, A K; Pickering, H W

Grain boundaries introduced intentionally in a Fe-0.04% P alloy by cold-working were successfully observed using a field ion microscope (FIM), and the composition along a grain boundary was analyzed using a high-performance time-of-flight atom-probe. Phosphorus was found to segregate to the grain boundaries below 600/sup 0/C, in agreement with previous Auger electron spectroscopy studies. In addition to P, it was found that several other elements, such as Ti, O, C and Mn segregate to the grain boundaries at different annealing temperatures.

• Research Organization: Pennsylvania State Univ., University Park (USA)
• DOE Contract Number: AC02-79ER10430
• OSTI ID: 6575171
• Report Number(s): DOE/ER/10430-9; CONF-8010159-3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
COLD WORKING
CRYSTAL STRUCTURE
FABRICATION
GRAIN BOUNDARIES
ION MICROSCOPY
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
PHOSPHORUS ADDITIONS
SEGREGATION
TIME-OF-FLIGHT METHOD