[1]孙玉峰,任晨星,沈宁福,等.喷射沉积Al-Fe-V-Si合金的组织演变研究[J].郑州大学学报(工学版),2001,22(04):17-21.[doi:10.3969/j.issn.1671-6833.2001.04.005]
　SUN Yufeng,Ren Chenxing,Shen Ningfu,et al.Microstructure evolution of Al-Fe-V-Si alloys deposited by jet deposits[J].Journal of Zhengzhou University (Engineering Science),2001,22(04):17-21.[doi:10.3969/j.issn.1671-6833.2001.04.005]

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喷射沉积Al-Fe-V-Si合金的组织演变研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

22卷

期数:

2001年04期

页码:

17-21

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Microstructure evolution of Al-Fe-V-Si alloys deposited by jet deposits

作者:

孙玉峰; 任晨星; 沈宁福; 等.

北京科技大学材料学院,, 郑州大学材料研究中心,, 北京有色金属研究总院复合材料中心,

Author(s):

SUN Yufeng; Ren Chenxing; Shen Ningfu; etc

关键词:

喷射沉积;  显微组织;  Al-Fe-V-Si合金;  机械性能

Keywords:

jet deposition;  microstructure;  Al-Fe-V-Si alloy;  Mechanical properties

DOI:

10.3969/j.issn.1671-6833.2001.04.005

文献标志码:

A

摘要:

通过光学和透射电子显微镜研究了喷射沉积Al-Fe-V-Si合金在沉积态和不同温度热挤压后的显微组织,发现在α-Al基体上均匀分布着高密度的细小硅化物颗粒,这些细小硅化物颗粒在高温挤压后仍能保持较好的稳定性,在提高合金高温性能中起主要作用.在300 ℃及其以上温度的挤压态合金中发现了一些六边形块状相,经分析是由于合金局部元素成分波动造成V元素的缺乏促使亚稳α-AlFeSi相矢稳转变而成,六边形块状相的存在是影响合金高温性能的主要原因.

Abstract:

The microstructure of Al-Fe-V-Si alloy in the deposition state and hot extrusion at different temperatures was studied by optical and transmission electron microscopy, and it was found that high-density fine silicide particles were evenly distributed on the α-Al matrix, and these fine silicide particles could maintain good stability after high temperature extrusion, which played a major role in improving the high temperature performance of the alloy. Some hexagonal block phases were found in extruded alloys at temperatures of 300 °C and above, and it was analyzed that the lack of V element caused by the fluctuation of local element composition of the alloy promoted the sagittal stable transformation of metastable α-AlFeSi phase, and the existence of hexagonal block phase was the main reason affecting the high temperature performance of the alloy.

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