| The Microstructure and Properties of Diffusion Layer of Spray Aluminum |
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| 作者姓名： | YE Hong YAN Zhonglin SUN Zhifu |
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| 作者单位： | [1]School of Materials Science and Engineering, Chongqing Institute of Technology, Chongqing 400050, China [2]Engineering Training Center, Chongqing Institute of Technology, Chongqing 400050, China [3]College of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China |
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| 摘 要： | After diffusion processing of thermal spraying , aluminum on 20^# steel is discussed in this article. Variations of microstructure, composition as well as mierohardness and corrosion resistatwe of diffusion layer of spray aluminum were explored by means of X-ray diffraction, scanning electron microscopy （SEM） and electron probe microanlysis （ EPMA ） . The result shows that the diffusion layer of spray aluminum consists of η phase （ Fe2Al5 ）, ξ phuse （ FeAl2 ）, β2 phase （ FeA1 ）,β1 plmse （ Fe3Al ） and α pluse from surface to substrate. There are balanced transitions between phases. The layer has extra high hardness and corrosion resistance.
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| 关 键 词： | 微观结构 扩散层 铝合金 合成物 |
| 收稿时间： | 2004-09-19 |
| 修稿时间： | 2005-06-24 |
The microstructure and properties of diffusion layer of spray aluminum |
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| YE Hong YAN Zhonglin SUN Zhifu.The Microstructure and Properties of Diffusion Layer of Spray Aluminum[J].Journal of Wuhan University of Technology. Materials Science Edition,2005,20(3):81-83. |
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| Authors: | Ye Hong Yan Zhonglin Sun Zhifu |
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| Affiliation: | (1) School of Materials Science and Engineering, Chongqing Institute of Technology, 400050 Chongqing, China;(2) Engineering Training Center, Chongqing Institute of Technology, 400050 Chongqing, China;(3) College of Materials Science and Engineering, Wuhan University of Technology, 430070 Wuhan, China |
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| Abstract: | After diffusion processing of thermal spraying, aluminum on 20# steel is discussed in this article. Variations of microstructure, composition as well as microhardness and corrosion resistance
of diffusion layer of spray aluminum were explored by means of X-ray diffraction, scanning electron microscopy (SEM) and electron
probe microanalysis (EPMA). The result shows that the diffusion layer of spray aluminum consists of η phase (Fe2Al5), ζ phase(FeAl2), β2 phase (FeA1), β1 phase (Fe3Al) and a phase from surface to substrate. There are balanced transitions between phases. The layer has extra high hardness
and corrosion resistance. |
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| Keywords: | spray aluminum diffusion microstructure composition properties |
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