Tribological property of self-lubricating PM304 composite

Chen, Ding; Li, P.L.; Ran, Guang; Tian, Yuan; Zhou, Jianxing

doi:10.1016/j.wear.2006.07.003

Cited by 59 publications

(26 citation statements)

References 16 publications

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“…There were no reactants between the Fe (or Mo) and CaF 2 detected after the hot-sintering Tribol Lett (2009) 34:193-200 197 process. This indicates that the Fe-10Mo-8%CaF 2 composite can be employed in high-temperature environment requiring thermal stability [22,23]. While for the worn surface of Fe-10Mo-8%CaF 2 composite, the XRD analysis demonstrates that the glaze film formed on the worn surface is mainly composing of Fe(Mo), Fe 2 O 3 , MoO 2 , CaF 2 , and CaMoO 4 (Fig.…”

Section: Worn Surface Analysismentioning

confidence: 93%

High Temperature Tribological Characteristics of Fe–Mo-based Self-Lubricating Composites

Han

Jia

et al. 2009

Tribol Lett

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Fe-Mo-based self-lubricating composites were prepared by a powder metallurgical hot-pressing method. The tribological properties of Fe-Mo-based composites with varied CaF 2 contents at high temperature were evaluated, and the effect of glaze films on the friction and wear characteristics of composites were analyzed. The results show that the introduction of CaF 2 into Fe-Mo alloys improved the mechanical properties, and the best tribological properties of Fe-Mo-CaF 2 composites were achieved at the CaF 2 content of 8 wt% at both room temperature and 600°C. The worn surface of Fe-Mo-CaF 2 composite at 600°C is characterized to plastic deformation and slight scuffing, and the improved tribological properties are attributed to the formation of lubricious glaze film that composed of high-temperature lubricants CaMoO 4 and CaF 2 on the worn surface of the composites.

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Section: Worn Surface Analysismentioning

confidence: 93%

High Temperature Tribological Characteristics of Fe–Mo-based Self-Lubricating Composites

Han

Jia

et al. 2009

Tribol Lett

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“…A series of self-lubricating composites based on nickel alloys and ceramics have been developed in recent years by plasma spraying or powder metallurgy methods [1][2][3][4][5][6][7][8][9]. A Ni-based high-temperature self-lubricating composite known as PM 304 has been developed that shows good tribological behavior over a wide range of temperatures (room temperature to 650°C) [6]; however, above 800°C, declines in its mechanical properties reduce its wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Ni3Al Matrix Composite with Lubricious Tungstate at High Temperatures

Zhu

Yang

et al. 2011

Tribol Lett

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Ni 3 Al-Ag-BaF 2 /CaF 2 -W composites were fabricated by the powder metallurgy route, and their tribological properties over a wide temperature range, starting from room temperature up to 800°C, were investigated. The Ni 3 Al matrix composite with 15 wt% BaF 2 /CaF 2 exhibited a favorable friction coefficient (range 0.3-0.4) and wear rate (0.2-6.2 9 10 -4 mm 3 N -1 m -1 ). The formation of BaWO 4 and CaWO 4 with lubricity on the worn surface due to a tribo-chemical reaction at high temperatures provided excellent lubricating properties. The low friction coefficient over a broad temperature range could be attributed to the synergistic effect of Ag,

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“…Ni matrix high temperature self-lubricating composites play a significant role in attaining this goal and achieve applications. In the past years, a series of self-lubricating composites based on nickel alloys have been developed by powder metallurgy methods [26][27][28][29][30][31][32][33][34][35]. Of these materials, PM212, which was developed by NASA Glenn (previous NASA Lewis) Research Center, shows promise for use over a wide range of temperatures (ranging from room temperature to 900 °C) [26,27].…”

Section: Ni Matrix High Temperature Self-lubricating Compositesmentioning

confidence: 99%

“…These three components play roles in providing binding, wear resistance and selflubrication, respectively. Another NASA PM304 (NiCr-Cr2O3-Ag-BaF2/CaF2) possesses well tribological behavior from room temperature to 650 °C [28], however, above 800 °C, the decline in mechanical property degrades its wear resistance. Based on the design view of NASA, many efforts are made to explore new self-lubricating composites based on nickel alloys, such as Nickel alloy-graphite-Ag, Nickel alloy-WC/SiC-PbO, Nickel alloy-Ag-CeF3, Nickel alloy-graphite-CeF3, Nickel alloy-MoS2-graphite, etc.…”

Section: Ni Matrix High Temperature Self-lubricating Compositesmentioning

confidence: 99%