【摘 要】
：
600 ℃ isothermal section of the Al-Cr-Zn system has been determined by Scanning Electron Microscopy-Energy Dispersive X-ray spectrometry (SEM-EDS), and X-ray Diffraction (XRD).Eleven three-phase regio
【机 构】
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School of Materials Science and Engineering, Changzhou University, 213164, Jiangsu, P.R.China;Jiangs
【出 处】
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第十七届全国相图学术会议暨相图与材料设计国际研讨会
论文部分内容阅读
600 ℃ isothermal section of the Al-Cr-Zn system has been determined by Scanning Electron Microscopy-Energy Dispersive X-ray spectrometry (SEM-EDS), and X-ray Diffraction (XRD).Eleven three-phase regions have been identified experimentally at 600 ℃.The τ3 and τ4 ternary compounds were identified in this isothermal section and the crystal structures of both phases are cubic.The lattice parameters of τ3 and τ4 are a=2.1536 nm and a=1.8323 nm, respectively.The formerly reported τ1 phase was not found.The formerly reported τ2 phase is an extension of Al7Cr.The highest Zn content in γ2 and v phases is 7.1 at.% and 6.7 at.%, respectively.The Zn solubility in Al7Cr phase canbe up to 10.4 at.%, while that in Al4Cr phase is less than 4 at.%.The clearly phase relation of the Al-Cr-Zn system can lead us to better understand the effect of Cr on the corrosion behavior of metals in the Zn-Al bath and the Hot-dip galvanizing process.
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