Increase of strength in metastable austenitic steels due to cyclic deformation-induced - martensite formation

• Autorzy: Smaga M. , Hahnenberger F. , Eifler D.
• Konferencja: Conference on Fracture Mechanics (XIII ; 5-7.09.2011 ; Opole ; Polska)
• Języki publikacji: EN

Abstrakty

EN

Specimens of the austenitic steels AISI 304, 321 and 348 were investigated in total-strain control fatigue tests in the temperature range from -60°C to 25°C. The fatigue behavior and phase transformation from paramagnetic austenite to ferromagnetic martensitewere investigated by means of stress-strain hysteresis, electrical resistance and magnetic measurements. The influence of the testing temperature on the cyclic deformation behavior and phase transformation is shown in Fig. 1. Due to a decrease in temperature an increase of the stress amplitude occurs. The pronounced cyclic hard- ening can be correlated with two phenomena, an increase of the amount of martensiteand the cyclic hardening of not transformed austenite.

Słowa kluczowe

EN

austenitic steel; martensite formation; cyclic deformation

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2011
• Tom: z. 99
• Strony: 55--55
• Opis fizyczny: .

Twórcy

autor

Smaga M.

autor

Hahnenberger F.

autor

Eifler D.

• Institute of Materials Science and Engineering, University of Kaiserslautern, Germany,