Prof. Dr.-Ing. Thomas Petersmeier

  • Werkstofftechnik
  • Schwerpunkt “Technologie der Werkstoffe”
  • Betriebsfestigkeit/Schadenanalyse

Professor


Sprechzeiten

nach Vereinbarung


JournalArticle
  • Thomas Petersmeier
Einfluß dynamischer Reckalterung auf Lebensdauer und Mikrostruktur bei zyklischer Beanspruchung von X22CrMoV121 , vol92
  • 2001
In stress-loaded cyclic deformation tests dynamic strain aging processes influence the cyclic deformation behavior. In the temperature range of dynamic strain aging the fatigue strength exponent reaches maximum values. A maximum of the fatigue strength coefficient correlates with a maximum of the number of cycles to failure. The free dislocation density and the hardness reach maximum values in the temperature range of dynamic strain aging.
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
Contribution
  • Thomas Petersmeier
  • D. Eifler
Cyclic deformation behaviour and microstructural changes of X22CrMoV121
  • 1998
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
JournalArticle
  • Thomas Petersmeier
  • U. Martin
  • D. Eifler
  • H. Oettel
Cyclic fatigue loading and characterization of dislocation evolution in the ferritic steel X22CrMoV121 , vol20
  • 1998
Isothermal cyclic deformation tests have been performed with the steel X22CrMoV121 in the temperature range 20°C ⩽ T ⩽ 600°C. The fatigue behaviour was related to microstructural changes in the bulk material. The dislocation density was determined for selected fatigue states by means of transmission electron microscopy. The material is characterized by cyclic softening in the investigated temperature range. Increasing temperatures and increasing stress amplitudes lead to an increase of the plastic strain amplitudes and a corresponding reduction of the number of cycles to failure. In the temperature range 250°C ⩽ T ⩽ 350°C dynamic strain ageing processes occur and maximum dislocation densities are observed. Generally the dislocation density decreases with increasing number of cycles and temperatures.
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
JournalArticle
  • Thomas Petersmeier
  • D. Eifler
Isothermal Cyclic Deformation Behaviour of X22CrMoV121 Steel in the Temperature Range 20°C < T < 650°C , vol77
  • 1997
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
Lecture
  • Thomas Petersmeier
  • D. Eifler
Einfluß von Mittelspannung und Mitteldehnung auf das Wechselverformungsverhalten des Stahles X22CrMoV121
  • 1997
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
Contribution
  • Thomas Petersmeier
  • D. Eifler
Cyclic Deformation Behaviour and Microstructure of a 12% Cr-Steel
  • 1996
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
JournalArticle
  • Thomas Petersmeier
  • D. Eifler
Isothermes Wechselverformungsverhalten des Stahles X22CrMoV121 im Temperaturbereich 20°C £ T £ 600°C , vol76
  • 1996
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
Lecture
  • Thomas Petersmeier
  • D. Eifler
Cyclic Deformation Behaviour and Microstructure of a 12% Cr-Steel
  • 1996
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics
Contribution
  • Thomas Petersmeier
  • D. Eifler
Isotherme Hochtemperaturermüdung des Stahles X22CrMoV121 im Temperaturbereich 20°C £ T £ 600°C
  • 1993
  • Maschinenbau und Mechatronik F_EN: Mechanical Engineering & Mechatronics