Damage-rate gradient effects on radiation-induced segregation and phase stability in irradiated alloys

Conference · Mon Jul 01 00:00:00 EDT 1985

OSTI ID:5415206

Lam, N Q; Okamoto, P R

Recent studies have shown that significant compositional redistribution in irradiated alloys can be induced by the gradients in the atomic displacement rates resulting from nonuniform defect production, in addition to the commonly-observed solute segregation at defect sinks. This process gives rise to complex local phase transformations during light-ion bombardment or irradiation with focused electron beams in the high-voltage electron microscope. Results of our theoretical and experimental investigations of this phenomenon in Ni-Al and Ni-Si are discussed. The implications of the observed effect in a number of areas of materials science are assessed.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 5415206
• Report Number(s): CONF-8508107-1; ON: DE85016605
• Resource Relation: Conference: International seminar on solute defect interaction: theory and experiment, Kingston, Ontario, Canada, 5 Aug 1985
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
PHYSICAL RADIATION EFFECTS
ALUMINIUM ALLOYS
NICKEL BASE ALLOYS
SILICON ALLOYS
ELECTRON BEAMS
ELECTRON MICROSCOPY
MEV RANGE 01-10
MICROSTRUCTURE
PRECIPITATION
SEGREGATION
BEAMS
CRYSTAL STRUCTURE
ENERGY RANGE
LEPTON BEAMS
MEV RANGE
MICROSCOPY
NICKEL ALLOYS
PARTICLE BEAMS
RADIATION EFFECTS
SEPARATION PROCESSES
360106* - Metals & Alloys- Radiation Effects