| Al液对TiAl合金表面渗氮层腐蚀机理研究 |
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| 引用本文： | 孙向雷,韩培德,李洪飞,李玉平.Al液对TiAl合金表面渗氮层腐蚀机理研究[J].材料热处理学报,2011,32(Z1). |
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| 作者姓名： | 孙向雷 韩培德 李洪飞 李玉平 |
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| 作者单位： | 太原理工大学材料科学与工程学院,山西太原030024;太原理工大学新材料界面科学与工程教育部重点实验室,山西太原030024 |
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| 基金项目： | 国家自然科学基金项目(50874079) |
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| 摘 要： | 对TiAl基合金高温渗氮层的微观组织、显微硬度、腐蚀层进行了研究.结果表明:经高温渗氮处理后,渗氮层显微硬度明显提高,TiAl基合金的渗氮层结构由氮化物层与过渡层组成,通过对铝液腐蚀TiAl基合金渗氮处理试样表面微观结构分析,渗氮处理有利于提高TiAl基合金表面的耐蚀性能,并分析了腐蚀机理.
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| 关 键 词： | TiAl基合金 渗氮处理 微观结构 铝液 腐蚀 |
Study on corrosion mechanism of nitrided TiAl based alloy in aluminum liquid |
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| SUN Xiang-lei
,
HAN Pei-de
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LI Hong-fei
,
LI Yu-ping.Study on corrosion mechanism of nitrided TiAl based alloy in aluminum liquid[J].Transactions of Materials and Heat Treatment,2011,32(Z1). |
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| Authors: | SUN Xiang-lei HAN Pei-de LI Hong-fei LI Yu-ping |
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| Affiliation: | SUN Xiang-lei 1,2,HAN Pei-de 1,LI Hong-fei 1,LI Yu-ping 1,2(1.College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China,2.Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,China) |
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| Abstract: | The microstructure,microhardness and liquid aluminum corrosion resistance of the nitrided TiAl based alloy at high tempareture were studied.The results show that the surface microhardness are evidently improved,and the formed nitrogen scale consists of compound layer and the transition layer.By analyzing microstructure,corrosion resistance in liquid aluminum of the samples are evidently improved by nitriding processes,the corrosion mechanism is put forward. |
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| Keywords: | TiAl based alloy nitridation microstructure liquid aluminum corrosion |
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