The effect of diamond-like carbon coatings on the rolling fatigue and wear of M50 steel

Rosado, Lewis; Jain, V. K.; Trivedi, Hitesh K.

doi:10.1016/s0043-1648(97)00147-6

Cited by 50 publications

(23 citation statements)

References 9 publications

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“…Nevertheless, the high hardness (30-60 GPa), low coefficient of friction (0.02 in dry argon or nitrogen environment), and extremely high resistance to sliding wear has enabled them to become an integral part of aerospace industry. In addition to their superior RCF performance at room temperature, DLC coatings have also shown improved RCF performance at temperature of about 350 • F [31], indicating an RCF life of approximately 50 × 10 6 stress cycles.…”

Section: Influence Of Coating Materials and Thicknessmentioning

confidence: 99%

Rolling contact fatigue of surface coatings—a review

Stewart¹,

Ahmed²

2002

Wear

132

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The aim of this review is to survey the state of the art relating to the rolling contact fatigue (RCF) investigation of various overlay coatings and also, to ascertain the influence of design parameters such as the type of deposition process, coating material and thickness on the RCF performance. Rolling contact fatigue is a significant factor in the failure of components in rolling/sliding contact. Although, sintered ceramics have provided improvements in RCF life of components in rolling/sliding contact, e.g. hybrid ceramic bearings, the economic and technological constraints associated have so far limited their use to specialist applications. Physical and chemical vapor deposition (PVD, CVD) as well as thermal spraying are methods of depositing overlay coatings. The designer must thus choose a deposition method based on economic and technical flexibility, e.g. material choice, functional grading, etc. Amongst this family of overlay coatings, PVD coatings are already finding commercial use whilst others are at a research and development stage. The available literature on the RCF testing of various types of overlay coatings is considerable, but it is generally difficult to synthesize all of the results to obtain a comprehensive understanding of the parameters which can have a significant effect on a coating's resistance to rolling contact fatigue. This review thus compares the RCF performance of these overlay coatings and discusses the results in terms of coating processes, materials, thickness, residual stress and tribological conditions of contact stress and lubrication.

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Section: Influence Of Coating Materials and Thicknessmentioning

confidence: 99%

Rolling contact fatigue of surface coatings—a review

Stewart¹,

Ahmed²

2002

Wear

132

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“…However, there are not enough studies on fatigue characteristics of DLC coated AISI4140 materials which are widely used for machining parts-properties necessary to ensure their long-term safety and reliability [12][13][14][15] . In this study, in order to examine the fatigue properties and to clear the fracture mechanism of DLC coated materials, AISI4140 steel coated with DLC films was prepared and fatigue tests were carried out with a axial loading and a plane bending testing machine.…”

Section: Fatigue Properties and Fracture Mechanism Of Steel Coated Wimentioning

confidence: 99%

Fatigue Properties and Fracture Mechanism of Steel Coated With Diamond-Like Carbon Films

Akebono

Kato

Sugeta

2012

Int. J. Mod. Phys. Conf. Ser.

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Diamond-like carbon (DLC) films have attracted much attention in many industrial fields because of their excellent tribological properties, high hardness, chemical inertness and biocompatibility. In order to examine the fatigue properties and to clear the fracture mechanism of DLC coated materials, AISI4140 steel coated with DLC films by using unbalanced magnetron sputtering method was prepared and two types of fatigue test were carried out by using a tension and compression testing machine with stress ratio -1 and a bending testing machine with stress ratio -1 with a focused on the fatigue crack behavior in detail. The fracture origin changed from the slip deformation to micro defects at surface whose size didn't affect the fatigue crack initiation behavior in the case of Virgin series because the hard coating like DLC films make the defect sensitivity of coated material higher.. However, DLC series indicated higher fatigue strengths in finite life region and fatigue limit compared with Virgin series. From the continuously observation by using a plastic replicas technique, it is clear that there are no noticeable differences on fatigue crack propagation rate between the Virgin and DLC series, however the fatigue crack initiation of DLC series was delayed significantly by existence of DLC films compared with Virgin series.

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“…Owing to their attractive tribological properties, diamond-like carbon (DLC) coatings represent one of the means to achieve these goals (Rosado et al, 1997). The extremely hardness, high elastic modulus, excellent wear and corrosion resistance, high thermal and chemical stability, and low friction nature of DLC coatings make them good prospects for a wide range of space (Santos et al, 2006) and industrial components .…”

Section: Introductionmentioning

confidence: 99%