(1.昆明貴金屬研究所，昆明 650221;
2.昆明冶金研究院，昆明 650031)
摘 要: 研究了低Ag含量(10%，質(zhì)量分數(shù))的Cu-Ag原位纖維復(fù)合材料的結(jié)構(gòu)和性能，結(jié)果表明通過原位復(fù)合技術(shù)可獲得強度>1.5GPa、導(dǎo)電率(IACS)>65%的原位纖維復(fù)合材料。研究了不同中間熱處理溫度對材料性能的影響，并考察了材料的穩(wěn)定性，結(jié)果表明通過控制變形量、調(diào)整中間熱處理及穩(wěn)定化熱處理規(guī)范，可以獲得具有不同強度和導(dǎo)電率組合的Cu-10Ag原位纖維復(fù)合材料。材料在自然時效與低溫退火過程中，有沉淀強化效應(yīng)產(chǎn)生，但導(dǎo)電率基本保持穩(wěn)定。
關(guān)鍵字: Cu-Ag合金；原位纖維復(fù)合材料；中間熱處理；沉淀強化
heavily deformed Cu-10Ag in-situ
filamentary composite
DAI Hong1，YANG Jia-ming2
（1.Kunming Institute of Precious Metal，
Kunming 650221，China;
2.Kunming Metallurgy Research Institute，
Kunming 650031，China）
Abstract:The microstructure and properties of Cu-Ag in-situ filamentary composite with low Ag content(10%, mass fraction) were studied.The results show that the in-situ filamentary composite with σb>1.5GPa，conductivity(IACS)>65% can be obtained trough the in-situ production technique. The influence of different intermediate heat treatment on properties was studied,and the results suggest that Cu-10Ag which have good combination of different strength and conductivity can be obtained through controlling reducing area，adjusting intermediate heat treatment and stabilizing treatment.There are precipitation strengthening effect during nature aging and low-temperature annealing，however，the conductivity remains stable basically.
Key words: Cu-Ag alloy；in situ filamentary composite；intermediate heat treatment；precipitation strengthening
