Wear behavior of anti-galling surface textured gray cast iron using pulsed-CO2 laser treatment

Pantelis, D.I.; Pantazopoulos, G.; Αντωνίου, Σταμάτης

doi:10.1016/s0043-1648(96)07339-5

Cited by 27 publications

(10 citation statements)

References 6 publications

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“…A Cameron-Plint pin-on-disk testing machine [2,3], equipped with a force transducer ( Fig. 2) was utilized for the real-time recording of the sliding friction coefficient evolution.…”

Section: Tribological Testing and Evaluation Techniquesmentioning

confidence: 99%

“…An adverse combination of loads, sliding velocities and environmental factors can often induce severe failure of the surfaces in contact, via tearing, ploughing and significant plastic deformation, while massive material transfer between the two surfaces can be simultaneously observed [1,2,3,4]. This disastrous adhesive wear mechanism could result in seizure -virtual welding of the two surfaces -eventually rendering the relevant motion of the two metallic bodies no longer possible.…”

Section: Introductionmentioning

confidence: 99%

“…Various surface modification techniques are employed to protect such Fe-based parts from galling failure, among them thermochemical treatment [5] and pulsed-CO 2 laser surface texturing [2]. Previous studies from several groups, among them of one of the present authors [6], have identified nitrocarburizing surface treatment as an effective means for the diminution of the wear coefficient of tool steels by an order of magnitude.…”

Section: Introductionmentioning

confidence: 99%

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Surface treatment of tool steels against galling failure

et al. 2018

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Abstract. In the present study two highly alloyed steel grades, intended for cold working applications, were subjected to plane-contact, nonlubricating sliding friction testing in order to estimate the working regions (applied pressure and sliding velocity) that are governed by mild, moderate and severe wear mechanisms, before and after nitrocarburizing. For this purpose, both tool steel grades were initially pre-subjected to the proper heat treatments, in order to achieve a final bulk hardness of 40, 50 and 60 HRC whereas, after heat treatment, half of the material specimens were further subjected to nitrocarburizing surface treatment. The comparative experimental study of heat-treated and heat-/ surface-treated grades within a wide range of applied pressure and sliding velocity values, in combination to the development of a relevant Artificial Neural Network, allowed to determine the areas of recommended operation of such tribosystems. In all cases, the positive influence of the post-hardening surface treatment was proved; further work is in progress to generalize these preliminary results and establish the relevant wear maps correlating the wear lifetime, the hardening levels and the surface treatment to the operational plane sliding conditions.

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“…A Cameron-Plint pin-on-disk testing machine [2,3], equipped with a force transducer ( Fig. 2) was utilized for the real-time recording of the sliding friction coefficient evolution.…”

Section: Tribological Testing and Evaluation Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface treatment of tool steels against galling failure

et al. 2018

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“…Surface topography technology has emerged in recent years as an effective method to reduce energy dissipation [6] to [8]. Recent works on various forms and shapes of surface texturing for high efficiency [9] and [10], energy-saving [11] and [12] and long performance life [13] and [14] have been carried out, which has already succeeded in many industrial applications [8], [15] and [16], such as seals [17] and [18], bearings [19] and [20] and gears [21] and [22].…”

Section: Introductionmentioning

confidence: 99%

Study on the Effects of Hierarchical Wavy Morphology on Clearance Flow

Zhang¹,

Zhang²,

Geng³

et al. 2019

SV-JME

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This paper aims to explore the influences of multilevel sinusoidal structures on clearance flow by using numerical and experimental methods. A hierarchical sinusoidal morphology was proposed to design the gap between matching surfaces in water hydraulic systems. The specimens with the 0 th order, the 1 st order and the 2 nd order sinusoidal structures were machined by a three dimensional (3D) printer, and their clearance leakage flow was tested on a water hydraulic annular clearance test rig. An extensive simulation study on the effects of waved surfaces with varying amplitudes and wavelengths on leakage was presented. Both the experimental and numerical results show that introducing hierarchical morphology on clearance surfaces will reduce leakage. Moreover, it was found that the leakage decreases with the increase of the ratio of the amplitude to wavelength. Further study of the flow field reveals that the leakage reduction of the 2 nd order sinusoidal model is obtained due to the extra vortexes of various scales and the narrower width of the main flow and lower velocity. Moreover, our results indicate that the waved surface induces a micro-hydrodynamic effect that creates an additional load carrying capability, which is helpful for separating the matching surfaces to reduce wear. The study is beneficial to investigate the potential for improving efficiency through the optimization of gap design.

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“…Naturally, much research has revealed that laser surface hardening (LSH) [10][11][12][13] effects considerable increases in the wear resistance of metals. Pantelis et al [14] have investigated the novel technique of laser surface texturing. Using a high power pulsed CO 2 laser, the surface of grey cast iron was textured to produce an anti-galling surface, yielding a marked increase in the wear resistance of the iron.…”

Section: Introductionmentioning

confidence: 99%

A comparative investigation of the wear characteristics of a high power diode laser generated single-stage and commercial epoxy tile grout

Lawrence

Edwards

et al. 2002

Wear

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A comparative study of a single-stage ceramic tile grout, generated using a 60 W high power diode laser (HPDL), and a commercially available tile grout has determined the wear characteristics of the two materials. Within both normal and corrosive environmental conditions, the single-stage ceramic tile grout proved to have a superior wear rate over the epoxy tile grout, 0.9 mg/cm 2 /h compared with 125 mg/cm 2 /h when in an HNO 3 environment respectively. Likewise, life assessment testing revealed that the single-stage ceramic tile grout gave an increase in wear life of 4 to 42 times over the commercially available epoxy tile grout, depending upon the corrosive environment. It is believed that the economic and material benefits to be gained from the deployment of such an effective and efficient means of sealing ceramic tiles could be significant.

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Wear behavior of anti-galling surface textured gray cast iron using pulsed-CO2 laser treatment

Cited by 27 publications

References 6 publications

Surface treatment of tool steels against galling failure

Surface treatment of tool steels against galling failure

Study on the Effects of Hierarchical Wavy Morphology on Clearance Flow

A comparative investigation of the wear characteristics of a high power diode laser generated single-stage and commercial epoxy tile grout

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