Toughening of brittle solids by martensitic transformations
Creators
- 1. College of Engineering, Univ. of California, Santa Barbara, CA (USA)
Description
A review of toughening mechanisms in transformable brittle solids is presented. Primary emphasis is given to transformation toughening, although microcrack and deflection toughening are also considered. Models of toughness are developed using concepts from applied mechanics, but within the context of the thermodynamics and kinetics of the transformation process. The predictions are compared with experimental data for various ZrO/sub 2/ containing ceramic alloys. The predominant toughening mechanism depends on composition and microstructure; dilatational transformation toughening with shear modifications dominates in partially stabilized zirconia; uniaxial transformation and microcrack mechanisms prevail in zirconia alumina; transformation toughening with partial reversibility in tetragonal zirconia polycrystals
Additional details
Publishing Information
- Journal Title
- Acta Metall.
- Journal Volume
- 34
- Journal Issue
- 5
- Series
- Acta Metall.
- Journal Page Range
- 761-800
- ISSN
- 0001-6160
- CODEN
- AMETA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19092037
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- ALLOYS; ALUMINIUM OXIDES; BRITTLENESS; CERAMICS; CHEMICAL COMPOSITION; CHEMICAL REACTION KINETICS; CRYSTAL-PHASE TRANSFORMATIONS; FRACTURE MECHANICS; FRACTURE PROPERTIES; MARTENSITE; MATHEMATICAL MODELS; POLYCRYSTALS; TETRAGONAL LATTICES; THERMODYNAMICS; ZIRCONIUM OXIDES
- Descriptors DEC
- ALUMINIUM COMPOUNDS; CARBON ADDITIONS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; IRON ALLOYS; KINETICS; MECHANICAL PROPERTIES; MECHANICS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; REACTION KINETICS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS