CuCrSnZn合金析出相价电子结构计算与强化机理分析Valence electron structure calculation of precipitated phase and strengthening mechanism analysis for CuCrSnZn alloy
苏娟华,姜涛,任凤章,贾淑果
摘要(Abstract):
基于经验电子理论(EET理论)及程氏改进的TFD理论,计算了CuCrSnZn合金时效处理后析出的析出相Cr与基体Cu形成的α-Cu(111)/Cr(110)相界面的价电子结构,利用界面结合因子ρ、△ρ分析了合金界面电子结构与合金的析出强化和软化温度的关系。结果表明,α-Cu(111)/Cr(110)晶面电子密度差较大,界面应力较大,有效阻碍了位错的运动和界面的推移,从而提高了合金的强度和软化温度。
关键词(KeyWords): CuCrSnZn合金;界面价电子结构;固体与分子经验电子理论;析出强化
基金项目(Foundation): 河南省科技攻关计划项目(102102210174);; 河南科技大学重大科技前期预研专项(2008ZDYY005);; 河南科技大学博士科研启动基金资助(20060620)
作者(Author): 苏娟华,姜涛,任凤章,贾淑果
DOI: 10.13289/j.issn.1009-6264.2013.07.019
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