Effect of Lanthanum and Yttrium on Microstructures of Cu-Cr alloys
来源期刊：材料热处理学报2004年第5期
论文作者：Zhang Meng Liu Guoming Shuai Gewang Yin Jianying Chen Xiaofang
关键词：Cu-Cr alloys; yttrium element; lanthanum element; microstructures;
摘 要：Microstructures of Cu-based alloys (including Cu0.8Cr0.05La, Cu0.8Cr0.1La, Cu0.8Cr0.4La, Cu0.8Cr0.05Y,Cu0.8Cr0.1Y 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 the grains with sphere shape and on the grain-boundaries with slice shape.
Zhang Meng1，Liu Guoming1，Shuai Gewang1，Yin Jianying1，Chen Xiaofang1
(1.School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi, 330047, China)
摘要:Microstructures of Cu-based alloys (including Cu0.8Cr0.05La, Cu0.8Cr0.1La, Cu0.8Cr0.4La, Cu0.8Cr0.05Y,Cu0.8Cr0.1Y 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 the grains with sphere shape and on the grain-boundaries with slice shape.
关键词:Cu-Cr alloys; yttrium element; lanthanum element; microstructures;
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