Effects of post-drawing treatments on the fatigue strength of eutectoid steel wires

Katagiri, K.; Satô, Tadashi; Kasaba, Koichi; Sasaki, Shigeichi; Tashiro, Hitoshi

doi:10.1046/j.1460-2695.1999.t01-1-00212.x

Cited by 10 publications

(10 citation statements)

References 16 publications

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“…Recent work by Katagiri et al [54,55] with cold-drawn eutectoid steel wires of 0.3 mm diameter showed similar results, i.e., the residual stress is one of the controlling factors of the fatigue limit (as measured by S-N curves). The residual stress in the as-drawn wires was extremely high (around 1,000 MPa) and the fatigue limit around 780 MPa.…”

Section: Fatigue Testsupporting

confidence: 53%

“…As the development of a dominant crack from the wire surface under high-cycle fatigue occupies the major part of the fatigue lifetime, an accurate calculation of the fatigue life requires an accurate knowledge of the surface stresses, which are dependent on the external loads and on residual stresses [51], An experimental and numerical investigation of the influence of residual stresses in cold-drawn eutectoid steels on the fatigue limit and on the fatigue life was undertaken some years ago [6,[52][53][54][55]. Llorca and Sanchez-Galvez [52,53] performed fatigue tests at a constant stress range and at different nominal stress ratios (R=cr min / cr max ) on wires with different residual stresses.…”

Section: Fatigue Testmentioning

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: Fatigue Testsupporting

confidence: 53%

Section: Fatigue Testmentioning

confidence: 99%

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

2012

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“…In the particular case of wire drawing, different methods are used to obtain more efficient and reliable components. Some of them are composed of diverse post-drawing treatments whose aim is to release the stress distribution after the cold drawing process [3]. Others are based on design modifications of the process, mainly focused on the die geometry [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

The Role of Overloading on the Reduction of Residual Stress by Cyclic Loading in Cold-Drawn Prestressing Steel Wires

et al. 2017

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Prestressing steel wires are commonly used as reinforcement elements in structures bearing fatigue loads. These wires are obtained by a conforming process called cold drawing, where a progressive reduction of the wire diameter is produced, causing residual stress in the commercial wire. The aim of this paper is to analyze the effect of diverse in-service cyclic loading conditions (cyclic loading and cyclic loading with overload) on such a residual stress field. To achieve this goal, firstly, a numerical simulation of the wire drawing process of a commercial prestressing steel wire was carried out to reveal the residual stress state induced by the manufacture technique. Afterwards, a numerical simulation was performed of the in-service loading conditions of a prestressing steel wire in which the previously calculated residual stress state is included. The analysis of the obtained results shows a significant reduction of the residual stress state of about 50% for common in-service loadings and as high as 90% for certain cases undergoing overloads during cyclic loading. Therefore, an improvement of the mechanical performance of these structural components during their life in-service can be achieved.

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“…An additional source of heat comes from the frictional effect between wire and die and at high drawing speeds the heat is evolved within milliseconds. High temperatures and steep temperature gradients are therefore to be expected, together with differences in the temperature between the wire's surface and core resulting in residual stresses (Katagiri et al, 2003). During wiredrawing, the deformation is not uniform throughout the cross-section of the wire and this also results in internal stress (Dove, 1989).…”

Section: Introductionmentioning

confidence: 98%

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

Kess

Tong-In

Ayutthaya

et al. 2014

IJIL

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Steel wire quality is measured in terms of tensile strength, yield strength, elongation and relaxation. Minimum requirements for these specifications are defined by international standards. This research intends to assist in setting the steel wire machine by identifying the relationship and appropriate range among manufacturing process variables and parameters. By knowing these relationships, the setting up machine can be done in short time which leading to cost reduction and achieving quality standard. The results reveal that the treatment setting of temperature was the most significant variable followed by tension. In particular, the three mechanical properties of tensile strength, yield strength and elongation achieved when temperature set at 350°C. Mathematical models were derived for the effect of process variables on tensile strength, yield strength and relaxation. Response optimisation was used to find a composite solution to optimise the response variables simultaneously.Reference to this paper should be made as follows: Kess, P., Tong-In, D., Ayutthaya, P.S-n. and Anusornnitisarn, P. (2014) 'Process innovation in pre-stressed concrete wire using mechanical-based process simulator', Int.

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Effects of post-drawing treatments on the fatigue strength of eutectoid steel wires

Cited by 10 publications

References 16 publications

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

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

The Role of Overloading on the Reduction of Residual Stress by Cyclic Loading in Cold-Drawn Prestressing Steel Wires

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

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