对Cu-6%Ag(质量分数,下同)合金固溶后在350和450℃时效不同时间,观察了时效处理前后显微组织及测定了不同时效状态下合金的硬度和电导率.在350 ℃时效1 h及450 ℃时效15 min时,过饱和固溶体晶界附近即可明显析出次生Ag相并形成不连续析出区.随时效时间延长,不连续析出区域扩大及次生Ag相颗粒粗化.在350和450 ℃时效时,硬度达到峰值的时间分别为32及2 h,电导率达到峰值的时间分别为128和8 h.450 ℃时效的合金峰值硬度和峰值电导率高于在350 ℃时效的合金.在时效前期,较高温度的析出过程对提高合金硬度和电导率的效果比较明显,而在时效后期,较低温度析出过程对合金硬度和电导率的提高更为明显.
参考文献
[1] | Sakai Y.;Inoue K. .High-strength and high-conductivity Cu-Ag alloy sheets: new promising conductor for high-fieId Bitter coils[J].IEEE Transactions on Magnetics,1994(4):2114-2117. |
[2] | Sakai Y;Inoue K;Maeda H .[J].Acta Metallurgica Et Materialia,1995,43(04):1517. |
[3] | Embury J D;Han K .[J].Current Opinion in Solid State and Materials Science,1998,3(03):304. |
[4] | Han K;Sims JR;Campbell LJ;Schneider-Muntau HJ;Pantsyrnyi V.I. -;Shikov A;Nikulin A;Vorobieva A;Embury JD .The fabrication, properties and microstructure of Cu-Ag and Cu-Nb composite conductors[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(1):99-114. |
[5] | Asai S .[J].Science and Technology of Advanced Materials,2000,1:191. |
[6] | Grünberger W;Heilmaier M;Schultz L .[J].Physica B,2001,294-295:643. |
[7] | Grünberger W;Heilmaier M;Schultz L .[J].Zeitschrift fur Metallkunde,2002,93(01):58. |
[8] | 张雷,颜芳,孟亮.高强高导Cu-Ag合金的研究现状与展望[J].材料导报,2003(05):15-17,54. |
[9] | 林剑,刘嘉斌,孟亮.预备热处理对纤维相复合强化Cu-12%Ag合金组织与性能的影响[J].稀有金属材料与工程,2006(z2):254-258. |
[10] | Han K;Vasquez A A;Xin Y et al.[J].Acta Materialia,2003,51:767. |
[11] | Zhang L;Meng L .[J].Scripta Materialia,2005,52:1187. |
[12] | Liu J B;Meng L;Zeng Y W .[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2006,435-436:237. |
[13] | Sakai Y;Inoue K;Asano T et al.[J].Applied Physics Letters,1991,59(23):2965. |
[14] | Sakai Y;Schneider-Muntau H J .[J].Acta Materialia,1997,45(03):1017. |
[15] | Hong S L;Hill M A .[J].Acta Materialia,1998,46(12):4111. |
[16] | Hong, SI;Hill, MA .Mechanical stability and electrical conductivity of Cu-Ag filamentary microcomposites[J].Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing,1999(1-2):151-158. |
[17] | 颜芳,孟亮,张雷.热处理温度对纤维相强化Cu-12Ag合金组织性能的影响[J].金属学报,2004(08):891-896. |
[18] | Gaganov A;Freudenberger J;Grünberger W et al.[J].Zeitschrift fur Metallkunde,2004,95(06):425. |
[19] | Sakai Y;Schneider-Muntau H J .[J].Acta Materialia,1997,45(03):1017. |
[20] | Verhoeven J D;Chumbley L S;Laabs F C et al.[J].Acta Metallurgica Et Materialia,1991,39(11):2825. |
[21] | 张雷,孟亮.合金元素对Cu-Ag合金组织、力学性能和电学性能的影响[J].中国有色金属学报,2002(06):1218-1223. |
[22] | Fan Z .[J].Acta Metallurgica Et Materialia,1995,43(01):43. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%