Effect of lanthanum and yttrium on microstructures of Cu-Cr alloys

被引：0

作者：

Chen, Xiaofang ^{[1
]}

Zhang, Meng ^{[1
]}

Yin, Jianying ^{[1
]}

Shuai, Gewang ^{[1
]}

Liu, Guoming ^{[1
]}

机构：

[1] Sch. of Mat. Sci. and Eng., Nanchang Univ., Nanchang 330047, China

来源：

Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | 2004年 / 25卷 / 05期

关键词：

Lanthanum - Metallographic microstructure - Optical microscopy - Scanning electron microscopy - X ray diffraction analysis - Yttrium;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Microstructures of Cu-based alloys (including Cu0.8Cr0.05La, Cu0.8Cr0.1La, Cu0.8Cr0.4La, Cu0.8Cr0.05Y, Cu0.8Cr0.lY and Cu0.8Cr0.4Y) were studied by optical microscope, X-ray diffractometer, Scanning electron microscope and Energy-dispersive X-ray spectroscopy. The results show that La and Y refine the grains and change the distribution of microstructures of Cu-Cr alloys. The sizes of Cr particles are smaller in CuCrRE alloys than in CuCr alloy. In CuCrLa and CuCrY alloys, La and Y usually respectively exist as compounds of Cu6La and Cu5Y. These compounds distribute in (he grains with sphere shape and on the grain-boundaries with slice shape.

引用

页码：56 / 60