Residual stresses in cold drawn pearlitic rods

Atienza, J. M.; Ruiz-Hervías, J.; Martinez, M.; Mompeán, F. J.; García‐Hernández, Miguel J.; Elices, M.

doi:10.1016/j.scriptamat.2005.03.003

Cited by 61 publications

(45 citation statements)

References 16 publications

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“…The results of the finite element simulation without anisotropy are also shown. Higher error bars near the rod core are due to gauge volume effects at the low scattering angle employed (20=3.5°) [29] shape of the residual stress profiles, but the numerical model without anisotropy overestimates the real values of residual stresses. These differences were clear even after one drawing pass; thus, it seems that they would be significant for heavily-drawn steel wires, where the anisotropy level would be higher.…”

Section: B) Pearlitic (Two Phases) Rodsmentioning

confidence: 92%

“…Measurements by laboratory X-rays, neutron and synchrotron radiation and numerical simulations were performed on rods specially fabricated for this purpose [10,17,29,30]. To this end, two different steel rods, ferritic (single phase) and pearlitic (two phases), of 20 mm diameter were prepared and subjected to one drawing pass under precisely controlled conditions.…”

Section: Characterization Of Residual Stresses In Prestressing Steel mentioning

confidence: 99%

“…This is due to the development of a <110> fiber texture in the ferrite phase and to the progressive alignment of the cementite lamellae along the drawing direction [11,15,26]. This mechanical anisotropy may have a remarkable effect on the deformation processes and the forces involved in cold drawing as well as on the final residual stress profile [27][28][29]. Consequently, numerical simulations need to be supported by experimental measurements and the material behavior must be adequately modeled in order to obtain residual stress values which can be used for quantitative purposes.…”

Section: Characterization Of Residual Stresses In Prestressing Steel mentioning

confidence: 99%

“…Higher error bars near the rod core are due to gauge volume effects at the low scattering angle employed (20=3.5°) [10] where the parameters A, B, C, D, F and G are referred to the yield stresses in the different directions. In this work, a user's subroutine in ABAQUS was defined to change the yield stresses in the different planar directions according to the progressive alignment of cementite lamellae [29,31]. The rod before drawing was considered isotropic and, to obtain an idea of the anisotropic level of the final wire, several hardness tests were carried out in different directions.…”

Section: B) Pearlitic (Two Phases) Rodsmentioning

confidence: 99%

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The Role of Residual Stresses in the Performance and Durability of Prestressing Steel Wires

2012

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Residual stresses developed during wire drawing influence the mechanical behavior and durability of steel wires used for prestressed concrete structures, particularly the shape of the stress-strain curve, stress relaxation losses, fatigue life, and environmental cracking susceptibility. The availability of general purpose finite element analysis tools and powerful diffraction techniques (X-rays and neutrons) has made it possible to predict and measure accurately residual stress fields in cold-drawn steel wires. Work carried out in this field in the past decade, shows the prospects and limitations of residual stress measurement, how the stress relaxation losses and environmentally-assisted cracking are correlated with the profile of residual stresses and how the performance of steel wires can be improved by modifying such a stress profile.

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Section: B) Pearlitic (Two Phases) Rodsmentioning

confidence: 92%

Section: Characterization Of Residual Stresses In Prestressing Steel mentioning

confidence: 99%

Section: Characterization Of Residual Stresses In Prestressing Steel mentioning

confidence: 99%

Section: B) Pearlitic (Two Phases) Rodsmentioning

confidence: 99%

See 2 more Smart Citations

The Role of Residual Stresses in the Performance and Durability of Prestressing Steel Wires

2012

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“…The former is produced by the phase-to-phase interactions and the latter is due to the grain-to-grain interactions. [2,3] The presence of the internal microstresses is closely related to the evolution of the macrostress subjected in service. Both macrostresses and microstresses greatly affect the performance of engineering components.…”

Section: Introductionmentioning

confidence: 99%

Tensile Deformation Behavior of Duplex Stainless Steel Studied by In-Situ Time-of-Flight Neutron Diffraction

Jia

Peng

Brown

et al. 2008

Metall Mater Trans A

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For a duplex alloy being subjected to deformation, the different mechanical behaviors of its constituent phases may lead to a nonuniform partition of stresses between phases. In addition, the grain-orientation-dependent elastic/plastic anisotropy in each phase may cause grain-tograin interactions, which further modify the microscopic load partitioning between phases. In the current work, neutron diffraction experiments on the spectrometer for materials research at temperature and stress (SMARTS) were performed on an austenite-ferrite stainless steel for tracing the evolution of various microstresses during tensile loading, with particular emphasis on the load sharing among grains with different crystallographic orientations. The anisotropic elastic/plastic properties of the duplex steel were simulated using a visco-plastic self-consistent (VPSC) model that can predict the phase stress and the grain-orientation-dependent stress. Material parameters used for describing the constitutive laws of each phase were determined from the measured lattice strain distributions for different diffraction {hkl} planes as well as the laboratorial macroscopic stress-strain curve of the duplex steel. The present investigations provide in-depth understanding of the anisotropic micromechanical behavior of the duplex steel during tensile deformation.

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