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    DRY SLIDING WEAR OF Ti-6Al-4V ALLOY AT LOWTEMPERATURE IN VACUUM

    DRY SLIDING WEAR OF Ti-6Al-4V ALLOY AT LOWTEMPERATURE IN VACUUM


    Abstract Tribological properties of Ti-6Al-4V alloy against GCr15 steel at low temperature in vacuum were measured. The worn surfaces of Ti-6Al-4V alloy specimens were examined by a Hitachi S-570 type scanning electron microscope. The debris were analyzed using a D/max-γB XRD spectrometer. The results showed that the wear rate of Ti-6Al-4V alloy in vacuum ranged within 1.3– 12.0 mg·km–1 at low temperature. The wear rate of Ti-6Al-4V alloy increased with increasing the sliding velocity at low temperature in vacuum. The surface temperature increased to about 32°C for 300 m of sliding distance. It was found that plough characteristics on the worn surface provide information of the adhesion wear. Under the low sliding velocity, microcracks formed on the worn surface indicating damage due to low temperature, while no such microcracks were formed under the higher sliding velocity. The XRD analysis showed that the debris contain Fe, implying that the steel disc was wearing off although the original hardness of the steel was higher than that of the Ti-6Al-4V specimen.

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    Title :

    DRY SLIDING WEAR OF Ti-6Al-4V ALLOY AT LOWTEMPERATURE IN VACUUM

    Contributors:
    LIU, YONG (author) / YANG, DEZHUANG (author) / HE, SHIYU (author) / YE, ZHUYU (author)
    Published in:

    PROTECTION OF MATERIALS AND STRUCTURES FROM THE SPACE ENVIRONMENT ; 309-316

    Space Technology Proceedings ; 6

    Publication date :

    2006-01-01

    Size :

    8 pages

    ISBN :

    978-1-4020-4319-2 , 978-1-4020-4281-2

    ISSN :

    1389-1766

    DOI :

    https://doi.org/10.1007/1-4020-4319-8_27

    Type of media :

    Article/Chapter (Book)

    Type of material :

    Electronic Resource

    Language :

    English

    Keywords :

    Titanium Alloy , Wear Rate , Wear Surface , Tribological Property , Steel Disc Engineering , Automotive Engineering , Mechanical Engineering , Polymer Sciences , Extraterrestrial Physics, Space Sciences

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