Solid solutions under irradiation. I. A model for radiation-induced metastability

Journal Article · Wed Apr 01 00:00:00 EST 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.23.3322· OSTI ID:6584401

Cauvin, R; Martin, G

A simple model for solute concentration fluctuations in solid solutions under irradiation is proposed. The irreversible reaction of interstitial-vacancy mutual annihilation at solute clusters is shown to have a destabilizing effect for homogeneous undersaturated solid solutions. Under appropriate irradiation conditions defined by the irradiation flux and temperature, some solute concentration fluctuations become unstable: solute precipitation results. A simple expression for the solvus under irradiation is proposed. Unusual properties of the solute solubility limit under irradiation are predicted. The capability of the model to account for experimental observations is demonstrated in the companion paper.

• Research Organization: Section de Recherches de Metallurgie Physique, Centre d'Etudes Nucleaires de Saclay, Boite Postale No. 2, 91190 Gif sur Yvette, France
• OSTI ID: 6584401
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 23:7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SOLID SOLUTIONS
IRRADIATION
PRECIPITATION
ANNIHILATION
FLUCTUATIONS
INTERSTITIALS
QUANTITY RATIO
VACANCIES
BASIC INTERACTIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
DISPERSIONS
ELECTROMAGNETIC INTERACTIONS
INTERACTIONS
MIXTURES
POINT DEFECTS
SEPARATION PROCESSES
SOLUTIONS
VARIATIONS
360106* - Metals & Alloys- Radiation Effects