对工业纯Cu和纯Fe冷拔变形,研究大变形下性能与组织的变化.研究表明,在大变形的情况下,与退火态相比其抗拉强度、硬度和电阻率均有提高.纯Cu的抗拉强度、显微硬度和电阻率在截面真应变4.621时分别提高80.5%、42.5%和8.00%;纯Fe的抗拉强度、显微硬度和电阻率在截面真应变3.544时分别提高198.2%、54.4%和3.16%.随真应变的增大,Cu、Fe抗拉强度均明显增加,Fe表现的尤为突出.Cu的硬度和电阻率在应变增加到一定值后基本保持不变,而Fe的硬度和电阻率与抗拉强度一样始终随应变的增加而增加.用纯Cu和纯Fe在截面真应变3.544时的抗拉强度计算了Cu-11.5%Fe原位复合材料在相应变形下的抗拉强度,计算结果与测量值相符.
参考文献
[1] | Zhao DM.;Dong QM.;Liu P.;Kang BX.;Huang JL.;Jin ZH. .Structure and strength of the age hardened Cu-Ni-Si alloy[J].Materials Chemistry and Physics,2003(1):81-86. |
[2] | Ryu H J;Baik H K .Effect of thermomechanical treatment on microstructure and properties of Cu-base leadframe alloy[J].Journal of Materials Science,2000,35:3641-3646. |
[3] | Naotsugu I .The precipitation behavionr of Cu-Cr-Sn alloy[J].Journal of the Japan Copper and Brass Research Association,1985,24:225-230. |
[4] | Juanhua SU,Qiming DONG,Ping LIU,Hejun LI,Buxi KANG.Prediction of Properties in Thermomechanically Treated Cu-Cr-Zr Alloy by an Artificial Neural Network[J].材料科学技术学报(英文版),2003(06):529-532. |
[5] | 孙世清.Fe-Cr纤维的组织结构与磁学性质[J].金属热处理,2006(04):43-45. |
[6] | K.L. Lee .Effect of oxidation on the creep behaviour of copper-chromium in situ composite[J].Composites, Part A. Applied science and manufacturing,2003(12):1235-1244. |
[7] | Leprince-Wang Y.;Han K.;Huang Y.;Yu-Zhang K. .Microstructure in Cu-Nb microcomposites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):214-223. |
[8] | 宋学孟.金属物理性能分析[M].哈尔滨:哈尔滨工业大学出版社,1981:22-25. |
[9] | 葛继平,姚再起.高强度高导电的形变Cu-Fe原位复合材料[J].中国有色金属学报,2004(04):568-573. |
[10] | Funkenbusch P D;Lee J K;Courtney T H .Ductile two-phase alloys:prediction of strengthening at high strains[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1987,18:1249-1251. |
[11] | Verhoeven J D;Chueh S C;Gibson E D .Strength and conductivity of in aitu Cu-Fe alloys[J].Journal of Materials Science,1989,24:1748-1752. |
[12] | 高海燕,王俊,疏达,孙宝德.形变铜基原位复合材料的研究现状及展望[J].材料导报,2006(03):87-91. |
[13] | 姚再起,葛继平,刘书华.形变Cu-11.5%Fe原位复合材料的强度和导电性[J].复合材料学报,2005(03):121-125. |
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%