【摘 要】
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After diffusion processing of thermal spraying, aluminum on 20# steel is discussed in this article. Variations of microstructure, composition as well as microha
【机 构】
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School of Materials Science and Engineering, Chongqing Institute of Technology Chongqing 400050,Chin
【出 处】
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Journal of Wuhan University of Technology-Materials Science
论文部分内容阅读
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(Fe_2Al_5),ζ phase(FeAl_2),β_2 phase(FeA_l),β_1 phase(Fe_3Al) and α phase from surface to substrate. There are balanced transitions between phases. The layer has extra high hardness and corrosion resistance.
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 ( The result shows that the diffusion layer of spray aluminum consists of η phase (Fe_2Al_5), ζ phase (FeAl_2), β_2phase (FeA_l), β_1phase (Fe_3Al) and αphase from surface There are balanced transitions between phases. The layer has extra high hardness and corrosion resistance.
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