Multi-axial Loading at Elevated Temperatures

Ziebs, J.; Meersmann, J.; Kühn, Hans-Joachim; Ledworuski, Sigmar

doi:10.1515/mt-1995-370511

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Bauschinger Effect Of Nickel-base Superalloy1

Introduction1

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2004

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“…The material functions and parameters of the consitutive model were obtained for IN738LC at 850˚C [6] in the same way as for Sn-3.0Ag-0.5Cu at 25˚C. The tensile experiments shown in Fig.…”

Section: Bauschinger Effect Of Nickel-base Superalloymentioning

confidence: 99%

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Comparison of Cyclic Inelastic Features of a Lead-Free Solder Alloy and a Nickel-Base Superalloy

Akamatsu

Ohno

Takahashi

et al. 2004

KEM

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In this study, a time-dependent constitutive model with nonlinear kinematic hardening is applied to simulating the cyclic inelastic behavior of a lead-free solder alloy Sn-3.0Ag-0.5Cu at room temperature and a nickel-base superalloy IN738LC at 850˚C. The development of kinematic hardening is assumed to consist of strain hardening and power-law dynamic recovery. Then, by simulating the hysteresis loops of stress and strain under cyclic loading, it is shown that the nonlinearity in the dynamic recovery of kinematic hardening strongly influences the Bauschinger effect in simulated cyclic inelastic behavior, and that the Bauschinger effect of Sn-3.0Ag-0.5Cu is much weaker than that of IN738LC. It is thus demonstrated that quicker evanescence of anisotropic hardening renders the Bauschinger effect less significant.

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Section: Bauschinger Effect Of Nickel-base Superalloymentioning

confidence: 99%

“…The cyclic inelastic features of Sn-3.0Ag-0.5Cu will be thus discussed from the view point of constitutive modeling. Third, the constitutive model will be used to simulate the experiments of IN738LC at 850˚C [6], so that the Bauschinger effects of the lead-free solder alloy and nickel-base superalloy will be compared with each other.…”

Section: Introductionmentioning

confidence: 99%