采用真空熔炼、氩气保护下拉式连续定向凝固方法制备Cu-1403%Al-4%Ni(质量分数)合金管材,研究工艺参数对凝固成形过程的影响,分析连续定向凝固管材的组织性能.结果表明:当熔体温度为1 280℃、下拉速度为38 mm/min、冷却水流量为900 L/h时,可以连续稳定地形成Cu-14.3%Al-4%Ni合金管材,其直径为10 mm,壁厚为1.8 nnn,且表面较光滑、具有连续柱状晶组织,抗拉强度达到540 MPa,伸长率达到13.7%,具有优良的力学性能.
参考文献
| [1] | A. Bekker .Phase diagram based description of the hysteresis behavior of shape memory alloys[J].Acta materialia,1998(10):3649-3665. |
| [2] | G.MOTOYASU;M.KANEKO;H. SODA .Continuously Cast Cu-Al-Ni Shape Memory Wires with a Unidirectional Morphology[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2001(3):585-593. |
| [3] | 黎沃光,陈先朝,余业球.热型连铸法制取CuAlNi形状记忆合金丝[J].功能材料,2000(06):605. |
| [4] | SODE H;JEN C K;MOTOYASU G;OKUMURA S OHNO A .Fabrication and characterization of aluminium cladalumininm-copper alloy cored rod[J].Journal of Materials Science and Technology,1995(11):1174-1179. |
| [5] | G. Motoyasu;H. Soda;A. McLean .Continuous casting of tin strip using a heated mould[J].Scandinavian Journal of Metallurgy,2004(1):47-52. |
| [6] | MOTOYASU G;INADA R;OHNO A .Directionally solidified structures and crystal orientations of aluminum strips cast continuously with an open type,heated horizontal mold[J].Japanese Journal of Institute of Light Metals,1999,49(11):542-547. |
| [7] | SUSUMU O;HIROKI K;SATOSHI H .Crystal orientation and yield strength of pure magnesium continuously cast with a heated mold[J].Journal of the Japan Institute of Metals,1995,59(06):607-611. |
| [8] | Soda H.;Wang Z.;Motoyasu G.;Mclean A. .PILOT-SCALE CASTING OF SINGLE-CRYSTAL COPPER WIRES BY THE OHNO CONTINUOUS CASTING PROCESS[J].Journal of Materials Science,1995(21):5438-5448. |
| [9] | 丁雨田,许广济,郭法文,寇生中,兰晔峰,丁宗富,刘广林,封存利,杨新山.热型连铸单晶铜的性能[J].中国有色金属学报,2003(05):1071-1076. |
| [10] | Hong zhang,Jianxin Xie,Zidong Wang.Fabrication of pure copper rods containing continuous columnar crystals by continuous unidirectional solidification technology[J].北京科技大学学报(英文版),2004(03):240-244. |
| [11] | 季灯平,刘雪峰,谢建新,余均武,李卫河,荣鸣雷.Cu-12%Al铝青铜线材的连续定向凝固制备[J].金属学报,2006(12):1243-1247. |
| [12] | 余业球,黎沃光,蔡莲淑,陈先朝,贺春华,刘可如.热型连铸工艺的开发应用[J].铸造技术,2006(12):1357-1359. |
| [13] | 蔡莲淑,余业球,尹占华,王德芳,黎沃光.柱状晶Cu-Al-Ni形状记忆合金的性能[J].金属热处理,2006(11):53-56. |
| [14] | 蔡莲淑,余业球,罗继辉,黎沃光.连铸速度对CuAlNi记忆合金晶粒长大及弯曲疲劳的影响[J].特种铸造及有色合金,2006(02):77-79. |
| [15] | OTSUKA K;WAYMAN C M.Shape memory materials[M].Cambridge:Cambridge University Press,1998 |
| [16] | 尹占华,黎沃光,余业球.热型连铸CuAlNi形状记忆合金丝的性能研究[J].材料工程,2004(05):26-29. |
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