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| 1 | Ti-based glassy alloys in Ti-Cu-Zr-Sn system显示文摘Bulk amorphous formation in Ti-Cu-based multicomponent alloys, free of Ni, Pd and Be elements, were studied using the cluster-plus-glue-atom model. The basic cluster formula was revealed as [Ti9Cu6]Cu3 to explain the best binary glass forming composition Ti50Cu50 =Ti9Cu9 , where the CN14 rhombi-dodecahedron Ti9Cu6 was the principal cluster in the devitrification phase CuTi. This basic cluster formula was further alloyed with Zr and Sn and a critical glass forming ability was reached at (Ti7.2Zr1.8)(Cu8.72Sn0.28) and (Ti7.2Zr1.8)(Cu8.45Sn0.55) up to 5 mm in diameter by suction casting, which was the largest in Ti-Cu- based and Ni-, Pd- and Be-free alloys. | WANG ZengRui DONG DanDan QIANG JianBing WANG Qing WANG YingMin DONG Chuang | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，7： | 2 |
| 2 | 铒元素对锆基合金的非晶形成能力及力学性能的影响显示文摘以海绵锆为原料,采用水冷铜坩埚熔炼和铜模吸铸法制备了直径为3 mm、成分为(Zr_(0.55)Cu_(0.3)Al_(0.1)Ni_(0.05))_(100-x)Er_(x)(x=0,0.5,1,2,3,4,5)的锆基块体合金,通过对比不同铒含量海绵锆基合金的组织结构与性能,研究了铒元素对其非晶形成能力、热稳定性和力学性能的影响。结果表明:以海绵锆为原料时,锆基合金的非晶形成能力和力学性能明显下降。x=0时,无法制备成锆基非晶合金;添加Er元素后,海绵锆基合金的非晶形成能力和力学性能显著提高,具有非晶态结构;x=2时,海绵锆基非晶合金的力学性能最优,抗压强度σ_(bc)为 2142.5 MPa,室温下塑性应变 ε_(p)为 10.01%。与高纯锆制备的同直径(Zr_(0.55)Cu_(0.3)Al_(0.1)Ni_(0.05))_(98)Er_(2)非晶合金相比,其抗压强度恢复97.63%,室温塑性恢复 69.95%。添加铒元素有利于改善和提高海绵锆基合金的非晶形成能力和力学性能,为低成本制备锆基非晶合金提供一种新思路。 | 付小强 寇生中 李晓诚 丁瑞鲜 李春燕 李春玲 | 2022 | 稀有金属材料与工程2022，51，9： | 0 |
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