TLP contents
Main pages
- Aims
- Before you start
- Introduction
- Creep mechanisms
- Effects of stress and temperature on creep rate
- Creep rate equation
- The creeping coil experiment - variable stresses in a single specimen
- Experimental set-up
- Evaluating the stress exponent
- Evaluating the activation energy
- Simulation of creeping coil
- Creep of other metals
- Summary
- Questions
- Going further
Additional pages
Media resources
- Plot of time versus strain showing the 3 stages of creep (image)
- Plot of 1/T versus ln(strain rate) (image)
- Plot of ln σ versus ln(strain rate) (image)
- Diagram of a coiled sample (image)
- Diagram of a coiled sample and its cross-section (image)
- Diagram of a cross-section of a coil (image)
- Diagram of a cross-section of a coil showing final shear strain (image)
- Experimental set-up for measuring creep (image)
- Schematic of experimental set-up for measuring creep (image)
- Spacings after coil has been crept under its own weight for 1 minute at 65 oC (image)
- Plot of ln(s/t) against ln(N) (image)
- Spacings between coils after creeping for one minute (image)
- Plot of ln(s/t) against 1/T (image)
- Image of turbine blade grain structures (image)
- Plot of creep strain rate versus stress (image)
- SEM and TEM micrographs of turbine blades (image)
- Animation showing the two types of diffusion creep (Flash)
- Animation of dislocation creep (Flash)
- Animation showing interstitial diffusion (Flash)
- Animation showing substitutional diffusion (Flash)
- Interactive simulation of creep rate (Flash)
- Creep deformation of a coil of solder demonstration at 28oC (video)
- Creep deformation of a coil of solder demonstration at 65oC (video)
- Creep deformation of a coil of solder demonstration at 85oC (video)
© 2004-2012 University of Cambridge.
