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논문 기본 정보

자료유형
학술저널
저자정보
Kamini Singh (Indian Institute of Technology Madras) S. Ganesh Sundara Raman (Indian Institute of Technology Madras)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.29 No.2
발행연도
2023.2
수록면
357 - 368 (12page)
DOI
10.1007/s12540-022-01236-2

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초록· 키워드

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Most of the available literature discusses the room temperature tribological behaviour of thermal oxidation (TO) treatedTi6Al4V. There is only a few literature on the high temperature wear behaviour of TO-treated Ti6Al4V. Oxidation durationplays an important role in harnessing the benefit of solid solution strengthening from oxygen. No data is available on theeffect of TO duration on the high temperature wear behaviour of TO-treated Ti6Al4V. Therefore, in the present investigation,Ti6Al4V was thermally oxidised at the optimised temperature of 650 °C for different oxidation duration of 16 h, 24 h,and 48 h, and its sliding wear behaviour was investigated at room temperature (RT) and 450 °C. Sliding wear studies werecarried out using the ball on disk configuration against alumina as the counter body in dry condition. Wear characterisationwas done using an optical profilometer, a scanning electron microscope, and a Raman spectrometer. Results showedthat TO-treated samples showed reduced wear volume loss, i.e. improved wear resistance at RT and 450 °C. Wear volumeloss was the least for TO-treated samples oxidised for 16 h, 90% less than that of untreated coupons at RT and 77% less at450 °C. TO duration of 48 h degraded wear performance, increasing wear volume loss due to oxide failure at 450 °C. Themorphological study indicated an abrasive mechanism for untreated samples at RT and oxidation and delamination wear at450 °C, while TO-treated samples showed a delamination mechanism with fracture of the TiO2layer.

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