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大變形對(duì)連鑄Cu-(2%~8%)Ag合金力學(xué)性能及導(dǎo)電率的影響
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國(guó)家自然科學(xué)基金 (51164015)；云南省應(yīng)用基礎(chǔ)研究重點(diǎn)項(xiàng)目 (2011FA026)


Effect of Large Deformation on Mechanical Property and Electrical Conductivity of Cu-(2%~8%)Ag Alloys Produced by Continuous Casting
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    摘要:

    采用連續(xù)鑄造和冷拉集成技術(shù)制備Cu-Ag系合金，最終進(jìn)行時(shí)效處理。分別測(cè)量不同真應(yīng)變?chǔ)窍潞辖鸬牧W(xué)性能和電學(xué)性能，探究不同條件下合金的顯微組織、力學(xué)性能及電學(xué)性能的變化規(guī)律，并對(duì)其強(qiáng)化機(jī)理和導(dǎo)電機(jī)理進(jìn)行了討論。結(jié)果表明：隨著真應(yīng)變量的增加，Cu-Ag系合金的抗拉強(qiáng)度和硬度經(jīng)歷了顯著增加到上升趨于緩慢，最后再趨顯著增加的過程，而導(dǎo)電率則隨著施加應(yīng)變的增加出現(xiàn)相反的規(guī)律。此法制備的Cu-Ag系合金工藝簡(jiǎn)單，綜合性能有所提高

    Abstract:

    Cu-Ag alloys were prepared by the integrated technique of continuous casting and cold-drawing and finally aged. Mechanical and electrical properties of the alloys with different true strain η were measured. The change rules of their microstructure and mechanical and electrical properties were investigated and their strengthening mechanism and conductive mechanism were also discussed. The results show that with the increase of the true strain, the ultimate tensile strength and hardness of Cu-Ag alloys firstly increase significantly and then slowly and finally remarkably but the change rules of electrical conductivity with the increase of the applied strain is opposite completely. This preparation method of Cu-Ag alloys is simple and can improve their comprehensive performance

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沈 月,楊有才,張國(guó)全,付作鑫,陳永泰,張吉明,王塞北,謝 明.大變形對(duì)連鑄Cu-(2%~8%)Ag合金力學(xué)性能及導(dǎo)電率的影響[J].稀有金屬材料與工程,2014,43(7):1748~1752.[Shen Yue, Yang Youcai, Zhang Guoquan, Fu Zuoxin, Chen Yongtai, Zhang Jiming, Wang Saibei, Xie Ming. Effect of Large Deformation on Mechanical Property and Electrical Conductivity of Cu-(2%~8%)Ag Alloys Produced by Continuous Casting[J]. Rare Metal Materials and Engineering,2014,43(7):1748~1752.]
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  • 收稿日期:2013-07-15
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  • 在線發(fā)布日期: 2014-12-15
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