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首页> 美国卫生研究院文献>Materials >The Tensile Properties Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2
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The Tensile Properties Scratch Behaviors and Sliding Wear of Oxide Scale Formed on Titanium Grade 2

机译：钛等级2的氧化物尺度的拉伸性能划痕行为和滑动磨损

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摘要

The tensile properties, scratch behaviors and sliding wear of an oxide scale obtained on the surface of titanium Grade 2 in the process of isothermal oxidation at 600, 700 and 800 °C were determined in the study. It was shown that the intensity of the oxidation process increased along with an increase in temperature and extension of the oxidation time, which translated directly into the thickness of the deposited oxide layers. The tests showed that isothermal oxidation had an adverse effect on the tensile properties of titanium. After oxidation, it was found that the maximum reduction in tensile strength, R , was approximately 17.5%, and of the yield point, R , approximately 13.9%. Examination of scratch behaviors of the oxide scale showed that the layers obtained at temperatures of 700 (72 h) and 800 °C (2 and 6 h) had the best adhesion properties. The best resistance to scratching was exhibited by the layer obtained after 6 h oxidation at 800 °C (critical load: L = 63 N, L = 85 N). The study showed that after oxidation, a considerable reduction in wear factor of a disc made of titanium Grade 2 was observed for both the friction couples used (Al O , steel 100Cr6). The maximum reduction in wear factor of the oxidized titanium disc during interaction with Al O balls was ca. 79%, and with 100Cr6 balls, ca. 96%.
机译：在研究中，在600,700和800℃下在等温氧化过程中获得的钛等2的表面上获得的氧化物刻度的拉伸性能和滑动磨损。结果表明，氧化过程的强度随着氧化时间的温度和延伸的增加而增加，该氧化时间直接转化为沉积的氧化物层的厚度。测试表明，等温氧化对钛的拉伸性质具有不利影响。氧化后，发现拉伸强度，R的最大降低约为17.5％，屈服点R，约13.9％。氧化尺度的划痕行为的检查表明，在700（72小时）和800℃（2和6小时）的温度下获得的层具有最佳的粘附性。通过在800℃（临界载荷：L = 63n，L = 85n）下6小时氧化后获得的层展示了最佳抗刮擦性。该研究表明，在氧化之后，对于使用的摩擦耦合（Al O，钢100Cr6），观察到由钛级2制成的盘的磨损系数相当大的磨损因子。与Al O球相互作用期间氧化钛盘的磨损因子的最大降低是Ca。 79％，并带有100克拉球，加利福尼亚州。 96％。

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