(1. 西安交通大學(xué) 材料科學(xué)與工程學(xué)院， 西安 710049;
2. 洛陽工學(xué)院 材料系，洛陽 471039)
摘 要: 通過對Cu-Cr-Zr系和Cu-Fe-P-Ag系兩種高強(qiáng)高導(dǎo)銅合金框架材料合金成分的分析，獲得如下結(jié)論：1) 利用雙相析出強(qiáng)化，可以改善析出相的形態(tài)和析出過程，也是獲得高強(qiáng)高導(dǎo)銅合金的有效途徑；2) 固溶0.1%Ag元素，通過Ag元素與其他固溶元素的交互作用，減少基體內(nèi)對導(dǎo)電率影響較大的元素溶入，可改善材料的導(dǎo)電性和強(qiáng)度；3) 通過對Cu-Fe-P-Ag系合金成分的分析，提出了銅合金多元固溶體微觀畸變累積假說，利用此假說，可有效地指導(dǎo)高強(qiáng)高導(dǎo)銅合金基體成分設(shè)計。
關(guān)鍵字: 銅合金； 高強(qiáng)度； 高導(dǎo)電； 固溶體
strength and high electrical conductivity
（1. Institute of Materials Science and Engineering，
Xi′an Jiaotong University，Xi′an 710049, P.R.China;
2. Department of Materials Engineering， Luoyang Institute of
Technology，Luoyang 471039, P.R.China）
Abstract:By analyzing the ingredients of the two types of high strength and high electrical conductivity copper alloy used for lead frame, Cu-Cr-Zr and Cu-Fe-P-Ag， the following conclusions have been drawn: 1) by Applying the double phase precipitation strengthening， the forms and the processes of the precipitated phase can be approved and thus the highstrength, highconductivity copper alloy can be made effectively; 2) dissolving 0.1%Ag in copper alloy which is then interacting with other kind of solid solution and decreasing the dissolution of the elements in the matrix that may cause low conductivity, the strength and conductivity of the copper alloy can be approved; 3) with the composition analysis of Cu-Fe-P-Ag， a hypothesis based on the micro distortional accumulation of the multivariate solid solution of copper alloy is found, which can help the ingredients design of the copper alloy with high-strength and high-conductivity effectively in the future.
Key words: cooper alloy; highstrength high-conductivity; solid solution
