Premium
Dauerfestigkeitsvorhersage von einsatzgehärteten Bauteilen auf der Basis von Ermüdungsversuchen an korrespondierenden Werkstoffzuständen mit unterschiedlichem Kohlenstoffgehalt
Author(s) -
Thumser R.,
Kleemann S.,
Diemar A.,
Kleemann A.,
Bergmann J. W.
Publication year - 2011
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201100760
Subject(s) - carburizing , materials science , residual stress , carbon fibers , fatigue limit , composite material , metallurgy , composite number
Carburizing generates different material properties and residual stresses in the carburized layer. A material mechanics based model for endurance prediction of carburized steel components has been developed, in which thin walled tubes are used under cyclic internal and monotonic external pressures allow the determination of the material properties of the carburized layers. An unexpected independence of endurance and mean stress sensitivity from carbon content and hardness has been found, contrary to existing scientific knowledge. Component like specimens were tested to validate the endurance prediction model. The deviations of the predictions from the experiment are in the range of ±8 percent.