研究了喷射成形CuCr25合金沉积坯件的致密化处理工艺及其在860~1 070℃保温1 h后的组织演变,确定了热变形加工温度,研究了热锻压和热等静压后材料的组织、致密化以及电导率、密度、硬度等触头材料常规性能.结果表明:在1070℃保温1 h,触头材料未发生熔化,组织略微长大,但在正常范围内,经热锻压和热等静压处理后可实现致密化.这种先进工艺制备的新型触头材料具有良好的性能.
参考文献
[1] | Rieder W F;Schussek M;Giatzle W et al.The influence of composition and Cr particle site of Cu-Cr contacts on chopping current, contact resistance, and breakdown voltage in vacuum interrupters[J].IEEE Transactions on Components Packaging and Manufacturing Technology,1989,12(02):273-277. |
[2] | Slade P.G. .Advances in material development for high power, vacuum interrupter contacts[J].IEEE Transactions on Components, Packaging, and Manufacturing Technology. Part A,1994(1):96-106. |
[3] | 冼爱平.大功率真空开关铜铬触头材料[J].中国有色金属学报,2001(05):731-740. |
[4] | 张永安,熊柏青,刘红伟,石力开,夏凌远,江柏林,胡春利.CuCr50合金粉末的制备及微观组织分析[J].稀有金属,2002(04):245-248. |
[5] | 王亚平;崔建国;丁秉均 等.微晶CuCr材料的制备及电击穿性能的研究[J].西安交通大学学报,1997,31(03):76-91. |
[6] | J. Stobrawa;L. Ciura;Z. Rdzawski .Rapidly solidified strips of Cu-Cr alloys[J].Scripta materialia,1996(11):1759-1763. |
[7] | Szablewski;Kuznicka B .Electrical properties of rapidly solidified Cu-Cr alloys[J].Materials Science and Technology,1991,7(05):407-409. |
[8] | COOPER K P;Ayers J D .Microstructural evolution and thermal stability in rapidly solidified high-chromiumcontaining copper alloys[J].Materials Science and Engineering A,1991,A142:221-233. |
[9] | 丁秉钧 .真空断路器触头材料的组织结构控制及其对电性能影响规律[D].西安:西安交通大学,1990. |
[10] | Singer A R E .The principles of spray rolling of metals[J].Metallurgical and Materials,1970,4:246-249. |
[11] | Alan G;Leatham;Alan Lawley .The osprey process: principle and applications[J].International Journal of Powder Metallurgy,1993,29(04):321-329. |
[12] | 张永安,熊柏青,刘红伟,朱宝宏,石力开,张济山,夏茅栗.CuCr25触头材料的喷射成形制备及其组织分析[J].中国有色金属学报,2003(05):1067-1070. |
[13] | Wang Y;Ding B .The preparation and properties of microcrystalline and nanocrystalline CuCr contact material[J].IEEE Transactions on Components Packaging and Manufacturing Technology,1999,22(02):467-472. |
[14] | 虞觉奇;易文质;陈邦迪.二元合金状态图集[M].上海:上海科学技术出版社,1987:317. |
[15] | 夏芧栗.喷射成形铜铬合金触头材料的研究[M].北京:北京科技大学,2003 |
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