Microstructure and thermal stability behavior of a rapidly solidified Al-Ti-Fe-Cr alloy
来源期刊：Rare Metals2002年第3期
论文作者：CHEN Yiqing, CAO Qingping, and SU YongSchool of Materials Science and Engineering, Hefei University of Technology, Hefei , China
文章页码：207 - 212
摘 要：<正>A rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr （mass fraction in %） alloy was prepared by melt spinning. As-quenched and as-annealed microstructures were studied by X-ray diffractometry （XRD）, transmission electron microscopy （TEM）, high-resolution transmission electron microscopy （HREM） and energy dispersive spectrum （EDS） analysis. The microhardness of the alloy at different annealing temperatures was measured. The results obtained indicate that the microhardness of the rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr alloy does not vary with different annealing temperatures. The as-quenched microstructure of the alloy includes two kinds of dispersed primary phases: Al,Ti and Al13（Cr,Fe）2. After annealing at 400 C for 10 h, the stable phase Al13Fe4 appears in the microstructure.
CHEN Yiqing, CAO Qingping, and SU YongSchool of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China
摘 要：<正>A rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr （mass fraction in %） alloy was prepared by melt spinning. As-quenched and as-annealed microstructures were studied by X-ray diffractometry （XRD）, transmission electron microscopy （TEM）, high-resolution transmission electron microscopy （HREM） and energy dispersive spectrum （EDS） analysis. The microhardness of the alloy at different annealing temperatures was measured. The results obtained indicate that the microhardness of the rapidly solidified Al-2.5Ti-2.5Fe-2.5Cr alloy does not vary with different annealing temperatures. The as-quenched microstructure of the alloy includes two kinds of dispersed primary phases: Al,Ti and Al13（Cr,Fe）2. After annealing at 400 C for 10 h, the stable phase Al13Fe4 appears in the microstructure.
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