Tribological behavior of NiAl matrix composites with addition of oxides at high temperatures

Zhu, Shengyu; Bi, Qincheng; Niu, Muye; Yang, Jun; Liu, Weimin

doi:10.1016/j.wear.2011.11.006

Cited by 105 publications

(36 citation statements)

References 20 publications

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“…This is due to that WS 2 helps to enhance the tribological properties due to the formation of a lubricating tribofilm on the worn surface of MW. As a result, the friction coefficient is minimized especially at high temperatures [17][18][19]23]. To clearly clarify the temperature-adaptive action, the micrographs of worn surfaces of M, and MW after tests at different temperatures are investigated in the following.…”

Section: Res Dev Materials Scimentioning

confidence: 99%

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2017

RDMS

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An experimental investigation is conducted to improve the tribological properties of M50 composites (M). Using WS 2 (MW) is investigated under different temperatures (RT, 200, 400, 600, and 800 °C), and constant applied load (12N) and sliding speed (0.2m/s). The XRD, EPMA, FESEM, and EDS Mapping are conducted to understand the major mechanisms leading to improve the tribological properties of the M50 composites. Results suggested that MW provides the best tribological behaviors over the wide temperature range. The friction coefficients of MW are decreased by 13.51% as compared to that of M at 800 °C due to the formation of lubricating tribo-films on the worn surfaces. Research & Development in Material Science2/8 Res Dev Material SciAll previous articles confirmed that ZnO-WS 2 is a good lubricative candidate at elevated temperatures.

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Section: Res Dev Materials Scimentioning

confidence: 99%

Untitled

2017

RDMS

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“…Thus NiAl-28Cr-6Mo alloy may be an excellent matrix for high temperature self-lubricating composite. Recently, NiAl matrix high temperature selflubricating composites also have been explored [82,83]. NiAl matrix composite with various high temperature solid lubricants, such as oxide and fluoride, provide excellent lubricating properties at elevated temperatures.…”

Section: Nial Matrix High Temperature Self-lubricating Compositesmentioning

confidence: 99%

“…NiAl, NiAl-Cr-Mo alloy and NiAl matrix composites with addition of oxides (ZnO/CuO) were fabricated by powder metallurgy route [82]. It was found that some new phases (such as NiZn3, Cu0.81Ni0.19 and Al2O3) formed during the fabrication process due to a high-temperature solid state reaction.…”

Section: Nial Matrix High Temperature Self-lubricating Compositesmentioning

confidence: 99%

High Temperature Self-Lubricating Materials

Bi¹,

Zhu²,

Liu³

2013

Tribology in Engineering

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“…At low temperatures, the layers of NiAl are brittle and very easily susceptible to fragile peel off [28]. Low ductility of these layers can be improved by alloying them with metals such as Cr and Mo [29]. Additionally, the ZnO and CuO oxides present in the Ni-Al matrix acts as lubricants which improves the tribological properties [29].…”

Section: Introductionmentioning

confidence: 99%