The study of wear characteristics of sintered high speed steels containing CaF2, MnS and TiC additives at elevated temperature

Zuo-min, Liu; Childs, T.H.C.

doi:10.1016/j.wear.2004.01.016

Cited by 39 publications

(15 citation statements)

References 5 publications

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“…The tribological characteristics of sintered iron-based materials have been investigated by many researchers like Sudhakar et al [6] and Liu et al [7]. It has been observed that the friction and wear resistance is substantially affected by the composition of material, percentage porosity, surface treatments and lubrication.…”

Section: Introductionmentioning

confidence: 99%

A study on friction and wear characteristics of Fe–Cu–Sn alloy with MoS2 as solid lubricant under dry conditions

et al. 2019

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Iron-based alloys are materials of choice for engineering applications such as bearings and gears owing to their low cost, ease of manufacture, high strength, availability, and good wear resistance and low coefficient of friction. In this study, Fe-Cu-Sn composite containing varying percentage of molybdenum disulfide (MoS 2) is developed using simple single stage compaction and sintering. The friction and wear behaviors of these composites were studied ball-on-disc tribometer in which EN8 steel ball was used. It was found that with the increase in percentage of MoS 2 from 0 to 3 wt% the coefficient of friction and wear rate substantially decreases from around 0.85 to 0.25. The wear mechanism in base composition (0% MoS 2) is observed to be adhesive and abrasive, whereas mild abrasive wear was observed in the 3 wt% MoS 2 composite. The hardness of composite was also found to improve with the increase in MoS 2 weight fraction.

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Section: Introductionmentioning

confidence: 99%

A study on friction and wear characteristics of Fe–Cu–Sn alloy with MoS2 as solid lubricant under dry conditions

et al. 2019

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“…64 Self-lubricating coatings of TiC, CaF 2 , and MnS were used to improve the tribological characteristics of the sintered HSSs at elevated temperatures by Zuomin and Childs. 65 The trials were performed using the pin on disk hot wear test rig under steady sliding speed of 0.1 m s À1 and test load of 10 N with a test temperature varying from RT to 600 C. The critical temperature was observed to be in the range of 500-600 C. Results also revealed that the steel wear resistance could be improved by using TiC. While CaF 2 and MnS could not improve the resistance of steel to wear but could enhance their self-lubricating characteristics.…”

Section: Enhancing the Mechanical Properties Of M50 Steelmentioning

confidence: 99%

Enhancing the tribological and mechanical properties of M50 steel using solid lubricants – A detailed review

Essa

Zhang

Huang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Recent strides in contact mechanics of M50 steel offer unique opportunities for better and more control of its tribological behavior and mechanical properties under different contact and surrounding conditions. Most researchers have focused on the solid lubricants on M50 steel as the key strategy for improving the tribological properties. In this paper, we have selected a wide range of previous late studies to discuss the different mechanisms leading to an improvement in the tribological properties of M50 steel via solid lubricants. A discussion of M50 steel industrial applications is also reviewed. The main objective is to develop an exhaustive understanding of the tribological behavior of M50 steel with solid lubricant additives under different conditions and also provide some prospects to be considered for future work.

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“…The addition of TiC found to enhance the wear resistance of high speed steel due to the formation of hard carbides rather than the addition of MnS and CaF 2 . On the other hand the latter improves self-lubricating property of the steel 9 . The influence of microstructure on impact and wear behavior of sintered Cr and Mo steels is studied by Molinari et al 10 and concluded that graphite with Cr increases the hardenability by the formation of bainitic-martensitic microstructure after sintering with normal cooling.…”

Section: Introductionmentioning

confidence: 99%

Influence of Tungsten on Dry Sliding Wear Behaviour of Sintered/Hot Extruded P/M Alloy Steels (Fe-C-W-Ti)

et al. 2017

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In the present scenario, Powder Metallurgy (P/M) is an established manufacturing process used to make components of complex geometries with high strength and tolerances by using incredible materials which are difficult to melt or form by other processes. The mechanical properties and microstructures will determine the component characteristic dependent on the final obtained density of sintered P/M alloy steels. An attempt has been made to investigate the dry sliding wear behaviour of sintered/hot extruded P/M alloy steels with Fe-1C as base material, W (Tungsten) and Ti (Titanium) as an alloying element. The wear test was carried out by using a pin-on-disc tribometer (ASTM G99) against EN 38 steel disc (HRC 60) with a constant sliding speed of 2m/s at normal loads of 30, 50 and 70N respectively. The microstructure of the as-sintered P/M alloy steels reveals the ferritic-pearlite structure whereas for hot extruded alloy steels the microstructure shows a combination of Widmanstatten type ferrite, pearlite and bainite. From the microstructure the presence of WC (tungsten carbide) embedded with Ti in the grain boundaries offers greater wear resistance of the hot extruded P/M alloy steels. The common wear mechanism observed for hot extruded alloy steels is Delamination wear.

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The study of wear characteristics of sintered high speed steels containing CaF2, MnS and TiC additives at elevated temperature

Cited by 39 publications

References 5 publications

A study on friction and wear characteristics of Fe–Cu–Sn alloy with MoS2 as solid lubricant under dry conditions

A study on friction and wear characteristics of Fe–Cu–Sn alloy with MoS2 as solid lubricant under dry conditions

Enhancing the tribological and mechanical properties of M50 steel using solid lubricants – A detailed review

Influence of Tungsten on Dry Sliding Wear Behaviour of Sintered/Hot Extruded P/M Alloy Steels (Fe-C-W-Ti)

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