Friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloys fabricated by MA-SPS

WANG Tao; LU Xin; XU Wei; ZHANG Lin; QU Xuan-hui

doi:10.13374/j.issn2095-9389.2017.03.015

Volume 39 Issue 3

Mar. 2017

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WANG Tao, LU Xin, XU Wei, ZHANG Lin, QU Xuan-hui. Friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloys fabricated by MA-SPS[J]. Chinese Journal of Engineering, 2017, 39(3): 426-431. doi: 10.13374/j.issn2095-9389.2017.03.015

Citation:

WANG Tao, LU Xin, XU Wei, ZHANG Lin, QU Xuan-hui. Friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloys fabricated by MA-SPS[J]. Chinese Journal of Engineering, 2017, 39(3): 426-431. doi: 10.13374/j.issn2095-9389.2017.03.015

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Friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloys fabricated by MA-SPS

doi: 10.13374/j.issn2095-9389.2017.03.015

Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2016-05-14

Abstract

Abstract

The friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloy fabricated by mechanical alloying (MA) and subsequent spark plasma sintering (SPS) were investigated in SBF simulated body fluid. It was compared with those of as-SPSed micron size grain Ti-8Mo-3Fe alloy and as-casted Ti and TC4 alloy. The results show that ultrafine grain Ti-8Mo-3Fe alloy with high density and uniform microstructure can be fabricated by MA-SPS, and the alloy mainly consists of β-Ti phase and a small amount of α-Ti phase. The average grain size is 1. 5 μm, and the microhardness is 448 HV. In the same wear condition, the wear degree of ultrafine grain Ti-8Mo-3Fe alloy is significantly lower than those of micro-crystalline Ti-8Mo-3Fe, as-casted Ti, and TC4 alloy, so it has the lowest wear volume and stable friction coefficient. Ultrafine grain Ti-8Mo-3Fe alloy is mainly characterized by abrasive wear, but micro-crystalline Ti-8Mo-3Fe, as-casted Ti and TC4 alloy are characterized by abrasive and adhesion wear.
- titanium alloys,
- mechanical alloying,
- friction and wear of materials,
- wear mechanisms

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References(9)

References

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