Hysteresis, Temperature and Resistance Measurements for the Characterization of the Cyclic Deformation Behavior of Metals

F. Walther; Dietmar Eifler

doi:10.4028/www.scientific.net/MSF.567-568.51

Paper Titles

Plastic Deformation of Metallic Nanostructures
p.29

Influence of Phosphorus Grain Boundary Segregation on Fracture Behaviour of Iron-Base Alloys
p.33

Experimental Techniques in Fracture Characterization
p.39

Solute and Temperature Effects on the Strain Hardening Behaviour of Mg-Zn Solid Solutions
p.45

Hysteresis, Temperature and Resistance Measurements for the Characterization of the Cyclic Deformation Behavior of Metals
p.51

Molecular Dynamic Study of Proto-Faults Generation as an Atomistic Mechanism of Incipient Plasticity during High-Speed Loading in Ideal Crystal
p.57

Crack Orientation versus Ductile-Brittle Behavior in 3D Atomistic Simulations
p.61

Peculiarities of Plastic Deformation and Failure of Nanoparticles of B.C.C. Transition Metals
p.65

Planar Defects on (112) in BCC Crystals
p.69

HomeMaterials Science ForumMaterials Science Forum Vols. 567-568Hysteresis, Temperature and Resistance...

Hysteresis, Temperature and Resistance Measurements for the Characterization of the Cyclic Deformation Behavior of Metals

Abstract:

Mechanical stress-strain hysteresis, temperature and electrical resistance measurements were performed for the microstructure-related characterization of the fatigue behavior and for the fatigue life calculation of metals. The proceeding fatigue damage was evaluated using the change of the load-free electrical resistance, which is strongly influenced by the defect density of the individual material state. A new test procedure was applied for the fatigue assessment under random loading on the basis of cyclic deformation curves, similar to single step loading. A physically based fatigue life calculation “PHYBAL” was developed, which requires only three fatigue tests for the rapid and nevertheless precise calculation of S-N (Woehler) and fatigue life curves.