損傷容限型鈦合金TC4-DT的微動磨損性能

損傷容限型鈦合金TC4-DT的微動磨損性能Fretting wear of damage tolerance TC4-DT alloy

采用正交實驗設(shè)計法，選擇影響鈦合金微動磨損的位移、載荷、頻率3個主要因素，設(shè)計L16(45)正交表，研究鈦合金TC4-DT在不同試驗條件下的抗微動性能。以磨損量、摩擦因數(shù)為指標(biāo)研究其微動摩擦磨損特性。結(jié)果表明：影響鈦合金TC4-DT微動磨損性能的3個因素中，位移、載荷為高度顯著影響，頻率為顯著影響。鈦合金TC4-DT的微動磨損為磨粒磨損、粘著磨損和剝層磨損交互作用的結(jié)果。

The fretting wear characteristics of TC4-DT alloy were studied using orthogonal design experiment. According to the three major factors that affect the fretting wear of titanium alloy, the anti-fretting properties of TC4-DT alloy by L16 (45) orthogonal table were studied. The fretting friction and wear characteristics were evaluated by the abrasion and friction coefficient. The results show that displacement and load are highly significant factors whereas frequency is significant factor for the fretting wear performance of TC4-DT alloy. The fretting properties of TC4-DT alloy are the results of the interaction of abrasive wear, adhesive wear and peel wear.

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