采用单辊旋淬法制备了Cu50Zr42Al8,Cu46 Zr47-xAl7Yx(x=2,5),Cu43Zr42AlsAg7和Cu43Zr42Al8Ag5 Y2非晶合金薄带,利用X射线衍射和差示扫描量热分析研究了合金样品的玻璃形成能力和热稳定性.结果表明,在Cu50Zr42Al8中添加适量的Ag、Y后使得非晶合金的短程有序结构发生改变.合金Cu46Zr47-xAl7Yx(x=2,5)的过冷液相区宽度ΔTx分别比Cu50 Zr42 Al8增加了19K、30K,约化玻璃转变温度Trg从0.565分别增加到0.579和0.566,参数γ从0.402分别增加到0.418和0.420,说明Y的添加提高了非晶合金的热稳定性和玻璃形成能力.合金Cu43Zr42 Al8Ag7和Cu43Zr42Al8Ag5Y2与Cu50Zr42Al8相比,约化玻璃转变温度Trg及参数γ均有了明显的提高,达到了0.619、0.416和0.609、0.411,表明Ag的添加、Ag和Y的同时添加均提高了Cu - Zr -Al系非晶合金的玻璃形成能力,但Ag的效果更加显著.
参考文献
| [1] | A. INOUE;W.ZHANG;T.ZHANG .HIGH-STRENGTH Cu-BASED BULK GLASSY ALLOYS IN Cu-Zr-Ti AND Cu-Hf-Ti TERNARY SYSTEMS[J].Acta materialia,2001(14):2645-2652. |
| [2] | Akihisa Inoue;Tao Zhang;Kei Kurosaka;Wei Zhang .High-strength Cu-based bulk glassy alloys in Cu-Zr-Ti-Be system[J].Materials transactions,2001(8):1800-1804. |
| [3] | Fu HM;Wang H;Zhang HF;Hu ZQ .The effect of Gd addition on the glass-forming ability of Cu-Zr-Al alloy[J].Scripta materialia,2006(2):147-150. |
| [4] | Zhang T;Kei Kurosaka;Akihisa Inoue .Thermal and Properties of Cu-based Cu-Zr-Ti-Y bulk glassy alloys[J].Materials Transactions-Japan Institute of Metals,2001,42(10):2042-2045. |
| [5] | 张海峰,丁炳哲,胡壮麒.块状金属玻璃研究与进展[J].金属学报,2001(11):1131-1141. |
| [6] | Zhang Y.;Zhao DQ.;Pan MX.;Wang WH. .Glass forming properties of Zr-based bulk metallic 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,2003(1/2):206-210. |
| [7] | 惠希东;陈国良.块体非晶合金[M].北京:化学工业出版社,2007:50-62. |
| [8] | 屠鹏 .(Cu50 Zr42 Al8)100-xYx块体非晶合金形成能力和晶化行为研究[D].兰州:兰州理工大学,2008. |
| [9] | 赵吉鹏 .合金元素的添加对铜基块状非晶合金玻璃形成能力及耐腐蚀性能的影响[D].兰州理工大学,2008. |
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