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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Phase transformation in rapidly solidified AlAl _2O _3 alloys by high-frequency melting
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Phase transformation in rapidly solidified AlAl _2O _3 alloys by high-frequency melting

机译：快速凝固AlAl _2O _3合金的高频熔解相变

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摘要

The microstructure properties of rapidly solidified Al040wt% (α-Al _2O _3) alloys by high-frequency (HF) melting were investigated by means of x-ray diffraction measurements, optical observations and combined scanning electronic microscopy and energy-dispersive x-ray spectroscopy (SEM/EDX) analyses. Phase transformation was correlated by heat treatment with pure Al and solid α-Al _2O _3 alumina spectra. It was found that the microstructure is a solid solution of the Al phase with a notable solubility of α-Al _2O _3 in the Al matrix for lower contents. For 4wt.% of alumina compositions and above, it was a mixture of phases, Al solid solution and α-Al _2O _3, with a tendency to reach the α-Al _2O _3 alumina morphology. Other forms of alumina phases are observed in the heat-treated (HF) alloys.
机译：通过X射线衍射测量，光学观察以及扫描电子显微镜和能量色散X射线光谱技术研究了通过高频（HF）熔融快速凝固的Al040wt％（α-Al_2O _3）合金的显微组织性能。 （SEM / EDX）分析。通过热处理将纯铝和固态α-Al_2O _3氧化铝光谱关联到相变。发现该组织是Al相的固溶体，对于较低的含量，α-Al_2O _3在Al基体中具有显着的溶解性。对于4wt。％以上的氧化铝组合物，其为相，Al固溶体和α-Al_2O _3的相的混合物，具有达到α-Al_2O _3氧化铝形态的趋势。在热处理（HF）合金中观察到其他形式的氧化铝相。

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