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钛合金表面低氧压熔结Al-Si涂层及抗氧化能力

周伟 赵宇光

周伟, 赵宇光. 钛合金表面低氧压熔结Al-Si涂层及抗氧化能力[J]. 北京航空航天大学学报, 2007, 33(07): 865-868.
引用本文: 周伟, 赵宇光. 钛合金表面低氧压熔结Al-Si涂层及抗氧化能力[J]. 北京航空航天大学学报, 2007, 33(07): 865-868.
Zhou Wei, Zhao Yuguang. Low oxygen partial pressure self-fusing Al-Si coating formed on surface of Ti alloy and its oxidation resistance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 865-868. (in Chinese)
Citation: Zhou Wei, Zhao Yuguang. Low oxygen partial pressure self-fusing Al-Si coating formed on surface of Ti alloy and its oxidation resistance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(07): 865-868. (in Chinese)

钛合金表面低氧压熔结Al-Si涂层及抗氧化能力

基金项目: 吉林省自然科学基金资助项目(20060628-1)
详细信息
  • 中图分类号: TB 331

Low oxygen partial pressure self-fusing Al-Si coating formed on surface of Ti alloy and its oxidation resistance

  • 摘要: 采用低氧压高温快速熔结技术在Ti-6Al-4V合金表面成功地制备出抗高温氧化的Al-Si熔结涂层.与Si改性渗涂层相比,这种工艺相对简单,不需要经过长时间的扩散就能形成足够厚度的Al-Si熔结涂层,省时节能,且涂层中抗氧化元素铝、硅的浓度可通过调整粉末的混合比例来进行控制.X射线检测表明涂层主要由Ti5Si3和TiAl3组成.在923K空气中52h循环氧化试验结果表明:低氧压熔结Al-Si涂层在前10h的氧化过程中氧化增重较快,而在随后的氧化过程中氧化增重较为缓慢,而Si改性渗涂层在氧化过程中一直保持着较高的氧化速率.

     

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出版历程
  • 收稿日期:  2006-06-28
  • 网络出版日期:  2007-07-31

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