| 热氧化对钛合金表面氧化层的影响 |
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| 引用本文： | 侯猛,王小祥. 热氧化对钛合金表面氧化层的影响[J]. 材料科学与工程学报, 2010, 28(5) |
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| 作者姓名： | 侯猛 王小祥 |
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| 作者单位： | 浙江大学材料科学与工程学系,浙江,杭州,310027;浙江大学材料科学与工程学系,浙江,杭州,310027 |
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| 摘 要： | 对钛合金Ti6Al7Nb(以下简称TAN)和Ti6Al4V(以下简称TAV)通过热氧化处理获得表面氧化层,用金相显微镜、维氏硬度计、XRD和XPS等手段对氧化层的性能进行表征。结果表明:相同氧化温度和氧化时间,TAN合金较TAV合金表面形成的氧化层更薄、致密度更好;合金表面硬度随热氧化温度的升高和氧化时间的延长而增加,但温度过高(TAN:1000℃;TAV:900℃)会使氧化层疏松多孔,硬度反而会下降;通过XPS对不同温度短时间氧化样品进行表面分析发现,氧化温度对合金中Nb添加元素的氧化行为影响较小,对V添加元素的氧化行为影响剧烈。两种合金元素对氧化过程有着显著的影响。
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| 关 键 词： | Ti6Al7Nb 热氧化 XPS |
Surface Characterization of Thermally Oxidized Titanium Alloys |
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| HOU Meng,WANG Xiao-xiang. Surface Characterization of Thermally Oxidized Titanium Alloys[J]. Journal of Materials Science and Engineering, 2010, 28(5) |
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| Authors: | HOU Meng WANG Xiao-xiang |
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| Affiliation: | HOU Meng,WANG Xiao-xiang (Department of Materials Science , Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | The oxide films were prepared by thermal oxidation on the surfaces of Ti6Al7Nb(TAN) and Ti6Al4V(TAV) alloys and characterized by optical microscopy,Vickers hardness test,X-ray diffractometry(XRD) and X-ray photoelectron spectroscopy(XPS).The results indicate that the film on the surface of TAN is thinner than that on TAV and has stronger adhesion with substrate.The hardness of films on both alloys increase with elevating temperature or extending time at high temperature.However,due to the multilayered porou... |
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| Keywords: | Ti6Al7Nb thermal oxidation X-ray photoelectron spectroscopy(XPS) |
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