화학공학소재연구정보센터
Materials Science Forum, Vol.475-479, 2853-2856, 2005
Microstructures and properties of spray formed CuCr25 alloy
CuCr25 alloy contact materials were prepared by spray forming process, and subsequently hot forged and hot isostatically pressed to full densification. Microstructures of CuCr25 alloys were studied, and properties of the materials were measured. The research results show that the spray forming process is an ideal method to prepare CuCr25 alloys with typical rapidly solidified microstructure, excellent properties, fine chromium particles with size between 3-10 mu m uniformly distributed in the copper matrix. After hot forging and hot isostatic pressing, the density of the CuCr25 alloy could be 99%, electric conductivity of the CuCr25 alloy could be up to 26 similar to 29Ms/m, as the size of Cr particles increases to 10 similar to 15 mu m.