| V/Nb对Ti-45Al-9(V, Nb, Y)合金抗氧化性能的影响 |
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| 引用本文： | 陈玉勇,杨 非,孔凡涛,肖树龙.V/Nb对Ti-45Al-9(V, Nb, Y)合金抗氧化性能的影响[J].稀有金属材料与工程,2011,40(3):429-432. |
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| 作者姓名： | 陈玉勇 杨 非 孔凡涛 肖树龙 |
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| 作者单位： | 哈尔滨工业大学,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 摘 要： | βγ-TiAl合金具有良好的高温变形能力,为TiAl合金的发展开辟了新的途径。成功制备了不同x=V/Nb(x=1,1.5,2,3.5)的βγ-TiAlTi-45Al-9(V,Nb,Y)合金,研究了上述合金在800℃静止空气中的氧化行为。结果表明:当x=1时,Ti-45Al-9(V,Nb,Y)合金中形成条带状、连续致密的Al2O3氧化层,显著提高了合金的抗氧化能力。随着x=V/Nb的增加,Al2O3氧化层厚度变薄,合金的抗氧化能力下降。
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| 关 键 词： | TiAl合金 高温氧化 抗氧化性能 氧化界面 |
| 收稿时间： | 5/9/2009 12:41:49 PM |
Effect of V/Nb on the Oxidation Resistance of Ti-45Al-9(V, Nb, Y) Alloy |
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| Chen Yuyong,Yang Fei,Kong Fantao and 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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| Authors: | Chen Yuyong Yang Fei Kong Fantao and Xiao Shulong |
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| Affiliation: | Guangzhou Research Institute of Non-ferrous Metals,School of Materials Science and Engineering, Harbin Institute of Technology,School of Materials Science and Engineering, Harbin Institute of Technology,School of Materials Science and Engineering, Harbin Institute of Technology |
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| 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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| Keywords: | TiAl alloy High temperature oxidation oxidation resistance oxidation scale |
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