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Microcracking in High Temperature Low Cycle Fatigue

  • S. L. Mannan
  • M. Valsan
Part of the Solid Mechanics and its Applications book series (SMIA, volume 152)

At elevated temperatures, fatigue deformation and fracture are influenced by synergistic actions of several time dependent damage mechanisms. These include dynamic strain ageing, oxidation, creep and phase transformations. Studied are the influence of dislocation density, precipitates, strain rate, temperature and hold time on the high temperature low cycle fatigue behaviour of austenitic and ferritic steels and their weld joints and a Nimonic PE16 superalloy. Cycling hardening and softening response in various alloys would be discussed in terms of accompanying substructural changes.

Keywords

Fatigue Life Weld Metal Strain Amplitude Dynamic Strain Ageing Cyclic Stress Response 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V 2008

Authors and Affiliations

  • S. L. Mannan
    • 1
  • M. Valsan
    • 2
  1. 1.National Engineering CollegeKovilpatti, TNIndia
  2. 2.Indira Gandhi Centre for Atomic ResearchKalpakkam, TNIndia

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