对La-Al-Cu-Ni合金玻璃形成能力、热力学性能和力学性能进行了研究.结果表明,La62Al14Cu14Ni10大块金属玻璃具有较高的玻璃形成能力,其临界直径可达14 mm,另外具有较宽的过冷液相区(61 K),较低的玻璃转变温度(400 K).不同的玻璃形成能力在热力学框架内进行了讨论.La-Al-Cu-Ni合金玻璃形成能力与过冷液态区△Tx以及参数γ关系较小,且与约化玻璃转变温度Trg关系较大.La62Al14Cu17Ni7、La62Al14Cu14Ni10和La62Al14Cu12Ni12合金断裂强度超过600 MPa.该合金具有好的力学性能,可作为工程材料使用.
参考文献
| [1] | 王美玲;杨斌.W纤维/ZrTiCuNiBeNb基金属玻璃复合材料的断裂机制[J].材料热处理学报,2012(10):7-11. |
| [2] | 宁向梅;黄金亮;殷镖;张兴渊.快速凝固Mg80Cu10Y10金属玻璃的晶化行为[J].材料热处理学报,2013(4):22-26. |
| [3] | Peiyou Li;Gang Wang;Ding Ding;Jun Shen.Glass forming ability, thermodynamics and mechanical properties of novel Ti-Cu-Ni-Zr-Hf bulk metallic glasses[J].Materials & design,2014Jan.(Jan.):145-151. |
| [4] | H. Tan;Y. Zhang;D. Ma.Optimum glass formation at off-eutectic composition and its relation to skewed eutectic coupled zone in the La based La-Al-(Cu, Ni) pseudo ternary system[J].Acta materialia,200315(15):4551-4561. |
| [5] | Ran Li;Shujie Pang;Chaoli Ma;Tao Zhang.Influence of similar atom substitution on glass formation in (La–Ce)–Al–Co bulk metallic glasses[J].Acta materialia,200711(11):3719-3726. |
| [6] | Q.K. Jiang;G.Q. Zhang;L. Yang.La-based bulk metallic glasses with critical diameter up to 30 mm[J].Acta materialia,200713(13):4409-4418. |
| [7] | 李培友;孟凡莹;王永善;董敏敏;史俊婷;宋佩维.Glass forming ability and thermodynamic properties in novel La-Al-Cu-Co bulk metallic glasses[J].稀土学报（英文版）,2015(9):972-976. |
| [8] | Akihisa Inoue.High Strength Bulk Amorphous Alloys with Low Critical Cooling Rates (Overview)[J].Materials Transactions, JIM,19957(7):866-875. |
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