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The effect of temperature on wear and friction of a high strength steel in fretting

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Figure

Fig. 2. Schematic diagram of the fretting rig: (1) moving upper specimen mountingblock (USMB), (2) fixed lower specimen mounting block (LSMB), (3) cylindricalspecimen, (4) flat specimen, (5) LVDT, (6) load cell, (7) normal-load rod, and(8) cartridge heaters.
Fig. 6. Nano-indentation hardness of SCMV as a function of temperature.
Fig. 8. SEM micrographs, showing ploughing of metallic material at the edge of the wear scar, following a test at 300 1C which showed force peaks at the extremes of thestroke: (a) low magnification image of the whole scar and (b) higher magnification image of the region highlighted in (a).
Fig. 9 shows the development of the COF with time for frettingtests conducted under each of the temperatures examined

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