Author/Authors :
Frenz، نويسنده , , H. and Meersmann، نويسنده , , J. and Ziebs، نويسنده , , J. and Kühn، نويسنده , , H.-J. and Sievert، نويسنده , , R. and Olschewski، نويسنده , , J.، نويسنده ,
Abstract :
The temperature dependence of the cyclic behavior of IN 738 LC was studied. Cyclic iso- and non-isothermal tests were performed with proportional and non-proportional tension/torsion strain paths. It was shown that maximum and minimum stress values measured in isothermal strain controlled tests correspond quite well with results of non-isothermal tests. Thermal-mechanical constitutive equations based on the viscoplastic Chaboche model were used to describe the non-isothermal stress-strain behavior.
Keywords :
Nickel-base superalloy IN 738 LC , Uni-axial loading , Constitutive relations , multiaxial loading , Thermo-mechanical cyclic behavior , Viscoplastic Chaboche model
