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Plasma Alloying of TiAl with Niobium and Its Wear Resistance
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Plasma Alloying of TiAl with Niobium and Its Wear Resistance
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    摘要:

    將雙層輝光離子滲鈮技術(shù)應(yīng)用于TiAl合金從而改善其耐磨性能。對(duì)TiAl滲鈮合金層組織, 室溫和600 ℃高溫摩擦學(xué)性能進(jìn)行了研究。結(jié)果表明，TiAl經(jīng)離子滲鈮后表面形成厚度約12 μm的鈮合金層，滲層組織致密均勻，其組成物主要包括AlNb2、AlNb3、Ti2AlNb和Nb。鈮合金層在600 ℃的耐磨性明顯提高，并且室溫耐磨和減摩性能均優(yōu)于TiAl基材

    Abstract:

    Double glow plasma alloying of niobium was applied on TiAl alloy in order to improve its oxidation and wear resistances. Microstructure as well as tribological properties at ambient temperature and 600 oC were studied. The results show that a Nb-alloyed layer, about 12 μm in thickness, is formed on the surface of TiAl alloy after plasma alloying treatment. The alloyed layer consisting of AlNb2, AlNb3, Ti2AlNb and pure niobium is compact and homogenous. Under dry sliding condition, the wear resistance at 600 oC is enhanced greatly for Nb-alloyed TiAl and both anti-friction and wear-resistance at ambient temperature are also better than those of untreated TiAl alloy

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劉小萍,葛培林,尤 凱,王振霞,賀志勇. Plasma Alloying of TiAl with Niobium and Its Wear Resistance[J].稀有金屬材料與工程,2011,40(11):1891~1896.[Liu Xiaoping, Ge Peilin, You Kai, Wang Zhenxia, He Zhiyong. Plasma Alloying of TiAl with Niobium and Its Wear Resistance[J]. Rare Metal Materials and Engineering,2011,40(11):1891~1896.]
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  • 收稿日期:2010-11-28
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