Dry sliding tribological properties of Fe-based bulk metallic glass

Dawit Zenebe Segu; Jae Hyouk Choi; Seonghoon Yi; Seock Sam Kim

doi:10.1007/s11249-012-9969-9

Dry sliding tribological properties of Fe-based bulk metallic glass

Dawit Zenebe Segu, Jae Hyouk Choi, Seonghoon Yi, Seock Sam Kim

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe _66.7C _7.0Si _3.3B _5.5P _8.7Cr _2.3Al _2.0Mo _4.5 against Si ₃N ₄ ceramic ball was studied, along with a conventional material, using a ball-on-disk tribotester at room temperature. The overall average coefficient of friction value of the as-cast BMG was in the range of 0.26-0.42, which was better than the conventional material SUJ2 (0.36-0.46) and comparable with SUS304 (0.31-0.40). The wear mechanism of the Fe-based BMG changed with wear condition. The wear rate increased with increasing load. The hardness of the BMG increased during annealing, however, the wear resistance did not increase proportionally.

Original language	English
Pages (from-to)	131-138
Number of pages	8
Journal	Tribology Letters
Volume	47
Issue number	1
DOIs	https://doi.org/10.1007/s11249-012-9969-9
State	Published - Jul 2012

Keywords

Fe-based bulk metallic glass (BMG)
Tribological properties
Wear resistance

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10.1007/s11249-012-9969-9

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abstract = "The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe 66.7C 7.0Si 3.3B 5.5P 8.7Cr 2.3Al 2.0Mo 4.5 against Si 3N 4 ceramic ball was studied, along with a conventional material, using a ball-on-disk tribotester at room temperature. The overall average coefficient of friction value of the as-cast BMG was in the range of 0.26-0.42, which was better than the conventional material SUJ2 (0.36-0.46) and comparable with SUS304 (0.31-0.40). The wear mechanism of the Fe-based BMG changed with wear condition. The wear rate increased with increasing load. The hardness of the BMG increased during annealing, however, the wear resistance did not increase proportionally.",

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AU - Choi, Jae Hyouk

AU - Yi, Seonghoon

AU - Kim, Seock Sam

PY - 2012/7

Y1 - 2012/7

N2 - The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe 66.7C 7.0Si 3.3B 5.5P 8.7Cr 2.3Al 2.0Mo 4.5 against Si 3N 4 ceramic ball was studied, along with a conventional material, using a ball-on-disk tribotester at room temperature. The overall average coefficient of friction value of the as-cast BMG was in the range of 0.26-0.42, which was better than the conventional material SUJ2 (0.36-0.46) and comparable with SUS304 (0.31-0.40). The wear mechanism of the Fe-based BMG changed with wear condition. The wear rate increased with increasing load. The hardness of the BMG increased during annealing, however, the wear resistance did not increase proportionally.

AB - The dry or unlubricated sliding friction and wear properties of as-cast and annealed BMG (bulk metallic glass) with nominal composition of Fe 66.7C 7.0Si 3.3B 5.5P 8.7Cr 2.3Al 2.0Mo 4.5 against Si 3N 4 ceramic ball was studied, along with a conventional material, using a ball-on-disk tribotester at room temperature. The overall average coefficient of friction value of the as-cast BMG was in the range of 0.26-0.42, which was better than the conventional material SUJ2 (0.36-0.46) and comparable with SUS304 (0.31-0.40). The wear mechanism of the Fe-based BMG changed with wear condition. The wear rate increased with increasing load. The hardness of the BMG increased during annealing, however, the wear resistance did not increase proportionally.

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Dry sliding tribological properties of Fe-based bulk metallic glass

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Keywords

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