【摘要】：采用銷-盤式高速磨損試驗機(jī)對TC11合金在0.5~4 m·s~(-1)下進(jìn)行干滑動摩擦磨損實驗,研究了TC11合金的磨損行為,并探討了磨損機(jī)制。結(jié)果表明:在0.5~4 m·s~(-1)之間,4 m·s~(-1)時TC11合金磨損失重最低,其次為0.75 m·s~(-1)時的,而2.68 m·s~(-1)時磨損失重最大。不同速度下磨損量均隨載荷的增加而增加,其中以2.68 m·s~(-1)時增加最為劇烈。TC11鈦合金的磨損為黏著磨損、磨粒磨損和氧化磨損的綜合作用結(jié)果。0.75和2.68 m·s~(-1)時以黏著磨損和磨粒磨損為主要磨損機(jī)制,4 m·s~(-1)時轉(zhuǎn)變?yōu)檠趸p微磨損為主。不同工況下磨損過程中均形成摩擦層,4m·s~(-1)時不同載荷下摩擦層中出現(xiàn)數(shù)量較多的氧化物TiO、TiO_2,此時摩擦層硬度較高,具有顯著地減磨作用。
[Abstract]:The dry sliding friction and wear test of TC11 alloy at 0.5 m 路s ~ (- 1) was carried out by pin-disk high speed wear tester. The wear behavior of TC11 alloy was studied and the wear mechanism was discussed. The results show that the grinding weight of TC11 alloy is the lowest at 4 m 路s ~ (- 1), followed by 0.75 m 路s ~ (- 1), and the highest at 2.68 m 路s ~ (- 1). The wear of TC11 titanium alloy increased with the increase of load at different speeds, especially at 2.68 m 路s ~ (- 1). The wear of TC11 titanium alloy was the comprehensive result of adhesive wear, abrasive wear and oxidation wear. 0.75 m 路s ~ (- 1) and 2.68 m 路s ~ (- 1) were the main wear mechanisms, and 4 m 路s ~ (- 1) was the main wear mechanism. The friction layer was formed in the wear process under different working conditions, and a large number of oxide TiO,TiO_2, appeared in the friction layer under different loads at 4 m 路s ~ (- 1). The hardness of the friction layer was higher and the wear reduction effect was significant.
【作者單位】： 江蘇大學(xué);河海大學(xué);
【基金】：國家自然科學(xué)基金(51071078) 江蘇省普通高校研究生科研創(chuàng)新項目(CXLX13-652)
【分類號】：TG146.23

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