Role of the microstructure on the mechanical properties of fully pearlitic eutectoid steels
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 30
Abstract
This paper analyses how the microstructure of an eutectoid pearlitic steel affects its conventional mechanical properties (obtained by means of a standard tension test) and the associated micromechanisms of fracture. Results show how the yield strength, the ultimate tensile strength (UTS) and the ductility, increase as the continuous cooling rate rises, whereas on the other hand the strain at UTS decreases. The fracture surface exhibits more brittle features when the continuous cooling rate decreases, in such a manner that in the fracture process zone an increasing area appears where the pearlite lamellae can be detected and less regions of microvoids are observed.
Authors and Affiliations
J. Toribio, B. González, F. Ayaso
Keywords
Related Articles
- EP ID EP163110
- DOI -
- Views 78
- Downloads 0
On a kinked crack model to describe the influence of material microstructure on fatigue crack growth
Threshold condition and rate of fatigue crack growth in both short and long crack regime appear to be significantly affected by the degree of crack deflection. In the present paper, a theoretical model of a p...
A finite-element approach for the analysis of pin-bearing failure ofcomposite laminates
In this paper, a numerical home-made finite element model for the failure analysis of bolted jointsbetween fiber-reinforced composite laminates is presented. The model is based on an incremental displacementbasedap...
Competition between microstructure and defect in multiaxial high cycle fatigue
This study aims at providing a better understanding of the effects of both microstructure and defect on the high cycle fatigue behavior of metallic alloys using finite element simulations of polycrystalline aggre...
On fatigue behaviour of two spring steels. Part II: Mathematical models
Symmetric fatigue in two spring steels is investigated in three groups of specimens. One of the groups (Steel EN10270-1SH/ DIN 17223C – C 0.82%, Mn 0.76%, Si 0.26%) has experienced rotating-bending fatigue in...
Tests in tension-torsion conditions with descending sections of strain curve construction
The paper is devoted to theoretical and experimental investigation of materials behavior on postcritical deformation stage (strain softening). Tests results, which confirm theoretical justification of specimen conf...