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논문 기본 정보

자료유형
학술저널
저자정보
H. Zhong (Hefei University) L. Q. Yang (Yanshan University) Y. Yue (Henan University of Science and Technology) C. P. Zhang (Hefei University) F. X. Jin (Hefei University) M. Gu (Hefei University) M. Z. Ma (Yanshan University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.12
발행연도
2020.1
수록면
1,766 - 1,778 (13page)

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In this study, unlubricated sliding friction and wear properties of a recently-developed TiZr-based alloy (Ti–20Zr–6.5Al–4V, TZ20 hereafter) were tested at elevated temperatures ranging from room temperature to 673 K. After the tribologicaltests, worn surface and cross-section of TZ20 alloy were analyzed to illustrate its wear behavior. The results showed that thewear rate was increased firstly with the ambient temperature, which then decreased when the temperature exceeded criticaltransition temperature (473 K). Also, the dominant wear mechanisms changed from adhesive wear at room temperature toabrasive wear at 473 K, and then to mild abrasive wear at highest ambient temperature of 673 K. The variations of wearbehaviors could be attributed to tribo-oxide layer formed during sliding process. At ambient temperature of 673 K, the tribooxidelayer formed on the surface was thicker and more compact, and showed more obvious protective role on tribologicalproperties of TZ20 alloy.

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