Tribology of hard coating alloys deposited by thermal methods: Applications to industrial components

Carr, Gustavo Eduardo; Conde, R.H.

doi:10.1016/j.surfcoat.2008.08.061

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…The main difference between the rest of the clusters is the high Chromium values. It appears that these results confirm previous work [17]; the higher content of Chromium in the surface oxide, which increases their hardness and lowers the thermal conductivity, may give the mandrels a protective layer which would extend the tool life.…”

Section: Discussionsupporting

confidence: 88%

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An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

Carr

Conde

Chapetti

2011

Proceedings of the Institution of Mechanical Engineers, Part J:

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Analysis of the relationship between variables involved in the wear of mandrels used for seamless tube making was carried out. Laboratory-scale mandrels were pierced in sequences with different process parameters. Process data were acquired during piercing events and digital photographs of the mandrels’ silhouette were taken to study their profile evolution. Direct variables were registered and others were created. Data were first analysed in ranges of furnace temperature and cooling water flow. A self-organizing map (a kind of artificial neural network) was trained with experimental data for further multi-variable analysis. Results were analysed from the data clusters found and conclusions were extracted. Furnace temperature and cooling water flow were important for their influence on wear but a definite relationship could not be established. Results showed that the mandrel shape and wear condition could be inferred through the study of the axial force curve. A first equation for mandrel wear prediction is introduced, taking into account the relations found between the most important variables involved in the process. Nevertheless, additional research must be done considering the billet material stress fields and friction contact conditions.

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Section: Discussionsupporting

confidence: 88%

“…Data collected from numerous piercing events were used to train an artificial neural network, from which relationships between variables were obtained. Some analyses are based on previous research conducted on the same topic [17]. A schema of the relationships between variables analysed in this study is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

Carr

Conde

Chapetti

2011

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…Studies on the interactions between Fe-based surface and lubricants have been carried out for a long time to investigate the tribological mechanisms [5,6]. With the rapid development of science and vacuum technology, many new surface treatments and coating techniques have been introduced to industrial applications [7][8][9][10]. Accordingly, some non-ferrous films such as Al, Mo, DLC and some alloy films have emerged and improved the mechanical properties of some materials to a great extent [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…With the rapid development of science and vacuum technology, many new surface treatments and coating techniques have been introduced to industrial applications [7][8][9][10]. Accordingly, some non-ferrous films such as Al, Mo, DLC and some alloy films have emerged and improved the mechanical properties of some materials to a great extent [11][12][13]. However, reports on Non-ferrous films and lubricants interactions are rare so far.…”

Section: Introductionmentioning

confidence: 99%

Boundary Lubrication Mechanisms of Molybdenum Film by MoDTC and ZDDP Additives

Yue

Wang

et al. 2015

AMM

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Molybdenum (Mo) film is deposited by Ion Beam Assisted Deposition (IBAD) on the 316L steel substrate surface in this experiment. The micro structure and nanohardness of the film are tested by Scanning Electronic Microscope (SEM) and nanoindentation tester. The tribological behaviors of Mo film under ZDDP and MoDTC lubrication are evaluated by SRV test machine. The tribo-film formed on the worn surfaces is investigated by X-ray photoelectron spectroscopy (XPS) to find out the tribological mechanisms between the Mo film and the two additional additives. The result shows that Mo film not only has friction reduction property but also has wear assistant property under ZDDP and MoDTC lubrication. As element Mo has advantage on promoting the deposition of these two lubricating additives.

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“…High performance wear resistant materials together with excellent corrosion and high temperature oxidation resistance are required. While wear, corrosion, and oxidation are primarily surface related properties and the replacement by newly designed materials is often less cost-effective, developing a wear and corrosion resistant coating that can resist high temperature would be one of the most straightforward and economical solutions for above problem [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and wear property of laser-clad Co3Mo2Si/Coss wear resistant coatings

Liu

Wang

2010

Surface and Coatings Technology

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Tribology of hard coating alloys deposited by thermal methods: Applications to industrial components

Cited by 7 publications

References 7 publications

An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

An Experimental Approach towards an Equation for the Prediction of Piercing Mandrels Wear

Boundary Lubrication Mechanisms of Molybdenum Film by MoDTC and ZDDP Additives

Microstructure and wear property of laser-clad Co3Mo2Si/Coss wear resistant coatings

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