| AC-HVAF喷涂铁基非晶复合涂层结晶度的DSC法测定 |
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| 引用本文： | 祝军,樊自拴,孙冬柏,俞宏英,孟惠民,王旭东.AC-HVAF喷涂铁基非晶复合涂层结晶度的DSC法测定[J].北京科技大学学报,2007,29(11):1123-1127. |
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| 作者姓名： | 祝军 樊自拴 孙冬柏 俞宏英 孟惠民 王旭东 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用活性燃烧高速燃气喷涂方法(AC-HVAF)制备出一种高非晶含量的Fe基非晶合金涂层.根据非晶合金相变的热力学原理可知部分晶化的非晶合金的晶化即为残留非晶相的转变,其相变热应正比于残留非晶相的相含量.采用不同的热处理工艺使喷涂的非晶涂层晶化,利用DSC分析法测定了热处理后涂层中的纳米晶体含量和部分晶化非晶合金涂层试样的相变热,计算了该涂层试样的结晶度.实验结果和理论预测基本相符.
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| 关 键 词： | 非晶涂层 活性燃烧高速燃气喷涂 结晶 DSC分析 喷涂方法 铁基非晶 复合涂层 结晶度 测定 spraying coatings amorphous alloy crystallinity 理论预测 结果 实验 计算 试样 晶体 纳米 热处理工艺 分析法 非晶涂层 相含量 |
| 收稿时间： | 2006-11-14 |
| 修稿时间： | 2006-12-19 |
DSC measurement of the crystallinity of iron-based amorphous alloy coatings by AC-HVAF spraying |
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| ZHU Jun,FAN Zishuan,SUN Dongbai,YU Hongying,MENG Huimin,WANG Xudong.DSC measurement of the crystallinity of iron-based amorphous alloy coatings by AC-HVAF spraying[J].Journal of University of Science and Technology Beijing,2007,29(11):1123-1127. |
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| Authors: | ZHU Jun FAN Zishuan SUN Dongbai YU Hongying MENG Huimin WANG Xudong |
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| Abstract: | A high amorphous content Fe-based amorphous coating was prepared by the activated combustion high-velocity air-fuel (AC-HVAF) spraying method. According to the thermodynamic transformation theory of amorphous alloys, the crystallization of the fractional crystallized amorphous alloy is the transformation of residual amorphous phase, and its transformation enthalpy should be proportional to the phase content of residual amorphous phase. The coating was crystallized by different heat treatment methods. The nanocrystal content in the heated treating coatings and the fractional transformation enthalpy were measured by DSC analysis. The crystallization of the coating was detected. The experimental result basically matched with the data of theoretic forecasting. |
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| Keywords: | amorphous alloy coatings activated combustion high-velocity air-fuel spraying crystallization DSC analysis |
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