研制了新型集成电路引线框架Cu-Cr-Zr系列合金,通过电导率、硬度、抗拉强度测试以及透射电镜观察,考察了微量合金元素La,Fe/Ti,Co/Ti元素以及时效工艺对合金性能的影响.结果表明:稀土元素La可以改善A合金(Cu-Cr-Zr-Zn)的硬度及导电率;加入Fe/Ti,Co/Ti元素,大大提高了合金的强度和硬度,并使其时效的强度及硬度峰值延后.在970℃固溶处理、70%冷变形及不同温度时效2 h后,A合金(Cu-Cr-Zr-Zn)及B合金(Cu-Cr-Zr-Zn-La)在450℃时达到硬度和强度峰值,分别为HV 1 770 MPa和525 MPa及HV 1 840 MPa和554 MPa,电导率分别为78%和80%IACS;在970℃固溶处理,60%冷变形,500℃时效2 h,50%冷变形及不同温度2次时效2 h后,C合金(Cu-Cr-Zr-Zn-Fe-Ti-La)及D合金(Cu-Cr-Zr-Zn-Co-Ti-La)在450℃时达到硬度和强度峰值,分别为HV 2 120 MPa,683 MPa及HV 2 040 MPa和651 MPa,电导率分别为65%和70%IACS.
参考文献
| [1] | GhoshG et al.Systems-based Design of High-strength, High-conductivity Alloys[J].Journal of The Minerals,Metals & Materials Society,1997,49(03):56-60. |
| [2] | Miyake J;Ghosh G;Fine M E .Design of High-strength, High-conductivity Alloys[J].MRS Bulletin,1996,21(06):13-18. |
| [3] | Batra IS.;Kulkarni UD.;Banerjee S.;Dey GK. .Microstructure and properties of a Cu-Cr-Zr alloy[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2001(2):91-100. |
| [4] | Holzwarth U.;Scholz R.;Stamm H.;Volcan A.;Pisoni M. .On the recovery of the physical and mechanical properties of a CuCrZr alloy subjected to heat treatments simulating the thermal cycle of hot isostatic pressing[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2000(1):19-30. |
| [5] | G DURASHEVICH;V CVETKOVSKI;V JOVANOVICH .Effect of thermomechanical treatment on mechanical properties and electrical conductivity of a CuCrZr alloy[J].Bulletin of Materials Science,2002(1):59-62. |
| [6] | Eldrup M;Singh B N .[J].Journal of Nuclear Materials,1998,258/263:1022-1027. |
| [7] | Olzwarth U;Stamm H .[J].Journal of Nuclear Materials,2000,279:31-45. |
| [8] | 虞觉奇.二元合金状态图集[M].上海:上海科学技术文献出版社,1987:319. |
| [9] | Appello M;Fenici P.Solution Heat Treatment of a Cu-Cr-Zr Alloy[J].Materials Science and Engineering A,1988:69-75. |
| [10] | Martin J W.Micromechanisms in Particle-hardened allo-ys[M].New York: Cambridge University Press,1980:1. |
| [11] | 廖乐杰.[J].特种铸造及有色合金,1997(02):52-53. |
| [12] | 庄虹.Effect of Re on Properties of Copper and Copper Alloys[J].有色金属,1995(02):90-94. |
| [13] | 王谦,Shi-Wei Ricky Lee,曹育文,唐祥云,马莒生.引线框架用铜合金与Sn-Pb共晶焊料界面组织研究[J].功能材料,2000(05):494-495. |
| [14] | Huang Fuxiang;Ma Jusheng;Ning Honglong;Geng Zhiting;Lu Chao;Guop Shumei;Yu Xuetao;Wang Tao;Li Hong;Lou Huafen .Analysis of phases in a Cu-Cr-Zr alloy[J].Scripta materialia,2003(1):97-102. |
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%