Investigation of the effects of misch metal in RS Al-Fe-V-Si-Mm nanocrystalline alloys by PAT

稀有金属（英文版）, 2004, 23(2): 147-151.

^1, , ^2, , ^3,

1.College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China;Department of Material Science, College of Science, Northeastern University, Shenyang 110004, China

2.International Center for Materials Physics and the Institute of Metal Research, Academia Sinica, Shenyang 110015, China

3.Department of Material Science, College of Science, Northeastern University, Shenyang 110004, China

基金项目: 国家自然科学基金(59771020)

Investigation of the effects of misch metal in RS Al-Fe-V-Si-Mm nanocrystalline alloys by PAT

Keywords： nanocrystalline

The positron lifetime spectra of several Al93.3-xFe4.3V0.7Si1.7Mmx (x = 0.5%, 1.0%, 3.0%, atom fraction) alloys with different content of misch metal prepared by rapid solidification were measured, and the variations on the interfacial defects with the content of misch metal were revealed by an analysis of the lifetime results. The interface characteristics derived from the lifetime results could be used to give a satisfactory interpretation of the dependence of mechanical properties on the content of misch metal.

参考文献

[1]	Das S K;Davis L.A .High performance aerospace alloys via rapid solidification processing[J].Materials Science and Engineering,1988,98:1.
[2]	Wang J Q;Geng P;Zhang B.J;Zeng M.G .Microstructural features of rapidly solidified Al-based thermal strengthened alloys[J].Transactions of Nonferrous Metals Society of China,1997,7(01):56.
[3]	Wang JQ.;Hao YY.;Hu ZQ.;Wang ZG.;Tseng MK. .An investigation of the microstructure and mechanical behavior of novel nanocrystalline Al-Fe-V-Si-Mm alloy ribbons[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1998(1/2):51-57.
[4]	Sui M L;Lu K;Deng W;Xiong L.Y.,Patu S.,He Y.Z .Positron-lifetime study of polycrystalline Ni-P alloys with ultrafine grains[J].Physical Review,1991,B44:6466.
[5]	Wei Jia;Meikuang Tseng;Jianqiang Wang .Positron Annihilation Study on the Microstructural Stability in Rapidly Solidified Al_92.3Fe_4.3V_0.7Si_1.7Mm_1.0 Alloy[J].Journal of Materials Science & Technology,1998(2):179-181.
[6]	MacKenziet I K.Positron Solid-state Physics[M].North-Holland,1983:200.
[7]	Lu K .Nanocrystalline metals crystallized from amorphous solids: nanocrystallization, structure, and properties[J].Materials Science and Engineering,1996,16:161.
[8]	Schaefer H E;Wurschum R;Birringer R;Gleiter H .Structure of nanometer-sized polycrystalline iron investigated by positron lifetime spectroscopy[J].Physical Review,B38:9545.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Investigation of the effects of misch metal in RS Al-Fe-V-Si-Mm nanocrystalline alloys by PAT

参考文献