Published April 1994
| Version v1
Journal article
Step model of solution-precipitation creep
Description
Polycrystals which have intergranular thin liquid film deform by solution-precipitation creep. The strain rate is expressed by the velocity of surface step and its density. The velocity of step is proportional to the solubility and stress. It is controlled by resistance at kink, diffusion in the adsorption layer, and diffusion in the liquid film. The density of step is, (a) constant; (b) proportional to stress; or (c) increased by two dimensional nucleation. The constitutive equations were derived for diffusion-controlled and interface-reaction controlled creep. The step model was applied to creep and superplasticity of fine-grained ceramics with intergranular liquid film, and found to successfully explain the experimental results
Additional details
Publishing Information
- Journal Title
- Acta Metallurgica et Materialia
- Journal Volume
- 42
- Journal Issue
- 4
- Journal Page Range
- p. 1163-1172.
- ISSN
- 0956-7151
- CODEN
- AMATEB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25057752
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- CERAMICS; CREEP; DEFORMATION; MATHEMATICAL MODELS; PLASTICITY; THEORETICAL DATA; ZIRCONIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; DATA; INFORMATION; MECHANICAL PROPERTIES; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS