在水冷铜坩埚中采用铜模吸铸法制备了顶部直径为 2mm、底部直径为10mm、长度为70mm的Cu50-x-Zr42Al8Ndx(x=0、1、2、3、4)锥形合金试样.采用X射线衍射(XRD)和差分扫描量热(DSC)分别对合金的结构和非晶形成能力进行了研究,结果表明,添加适量的Nd增强了Cu50Zr42A18合金的非晶形成能力和热稳定性.通过铜模吸铸法可制备出直径为6mm的Cu49Zr42Al8Nd1和Cu46Zr42A18Nd4块状非晶合金.Cu46Zr42Al8Nd4非合金具有最高的过冷液相区和最大的热稳定性(△Tx=73).
参考文献
[1] | Inoue A;Zhang W;Kurosaka K .Thermal and mechanical properties Cu-based Cu-Zr-Ti bulk glassy alloys[J].Materials Transactions,2001,42(06):1149. |
[2] | Inoue A;Zhang W;Zhang T et al.High strength Cu-based bulk glassy alloys in Cu-Zr-Ti and Cu-Hf-Ti ternary systems[J].Acta Materials,2001,49:2645. |
[3] | 杨英俊,孙剑飞,李永泽,孙继库,沈军.二元共晶比例法制备铜基大块非晶合金[J].中国有色金属学报,2005(08):1179-1183. |
[4] | 孔见,陈光,王志华,孙强金.Cu47Ti34Zr11Ni8块体非晶合金的热稳定性和力学性能[J].中国有色金属学报,2004(09):1585-1589. |
[5] | Inoue A.;Zhang W.;Zhang T.;Kurosaka K. .Cu-based bulk glassy alloys with high tensile strength of over 2000 MPa[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2002(1/3):200-209. |
[6] | Gibbs J W.Collected works[M].New York:Longman,1991:55. |
[7] | Inoue A.Bulk Amorphous Alloy:Preparation and Fundamental Characteristics[M].Switzerland:Trans Tech Publications Inc,1998:37. |
[8] | Lu ZP.;Ng SC.;Li Y. .Reduced glass transition temperature and glass forming ability of bulk glass forming alloys[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2000(1/3):103-114. |
[9] | Donald W;Davies H A .Predictions of glass-forming ability for metallic systems[J].Journal of Non-Crystalline Solids,1978,30(01):77. |
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%