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V/Nb對(duì)Ti-45Al-9(V, Nb, Y)合金抗氧化性能的影響
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國(guó)家自然科學(xué)基金項(xiàng)目(50674037)


Effect of V/Nb on the Oxidation Resistance of Ti-45Al-9(V, Nb, Y) Alloy
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    摘要:

    β γ-TiAl合金具有良好的高溫變形能力，為T(mén)iAl合金的發(fā)展開(kāi)辟了新的途徑。成功制備了不同x=V/Nb (x=1, 1.5, 2, 3.5)的 β γ-TiAl Ti-45Al-9(V, Nb, Y)合金，研究了上述合金在800 ℃靜止空氣中的氧化行為。結(jié)果表明: 當(dāng)x=1時(shí)，Ti-45Al-9(V,Nb,Y)合金中形成條帶狀、連續(xù)致密的Al2O3氧化層，顯著提高了合金的抗氧化能力。隨著x=V/Nb的增加，Al2O3氧化層厚度變薄，合金的抗氧化能力下降

    Abstract:

    β γ-TiAl alloy owns excellent deformability at high temperature, so it exhibits great potential in different fields in future. Ti-45Al-9(V, Nb, Y) alloys with different x=V/Nb (x=1, 1.5, 2, 3.5) were prepared, and their cyclic oxidation behavior in static air at 800 oC was investigated. The results show that Ti-45Al-9(V, Nb,Y) alloy possesses high oxidation resistance when x=1, due to the strip-like, continuous and dense Al2O3 layer. However, the Al2O3 layer becomes thinner with increasing of x=V/Nb, resulting in poor oxidation resistance of Ti-45Al-9(V, Nb,Y) alloy

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陳玉勇,楊 非,孔凡濤,肖樹(shù)龍. V/Nb對(duì)Ti-45Al-9(V, Nb, Y)合金抗氧化性能的影響[J].稀有金屬材料與工程,2011,40(3):429~432.[Chen Yuyong, Yang Fei, Kong Fantao, Xiao Shulong. Effect of V/Nb on the Oxidation Resistance of Ti-45Al-9(V, Nb, Y) Alloy[J]. Rare Metal Materials and Engineering,2011,40(3):429~432.]
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  • 收稿日期:2010-03-21
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