中文摘要：

锡(Sn ) 的效果形成能力(GFA ) 和 Ni-Nb-Zr 第三的合金系统的机械性质的玻璃上的增加被学习了。Sn 的增加改进 GFA；Ni61Nb35.5x Zr3.5Sn x (在 at.%) 有 x=1 的合金能被扔进非结晶的样品在用一个铜模子的直径的至少 3 公里扔注射的方法。当时，为玻璃形成的批评尺寸减少到 2 公里 x=5 因为 Ni2SnZr 阶段乐意地猛抛。Sn 的增加在提高 supercooled 液体的稳定性也是有效的；48 K 的一个最大的 supercooled 液体区域为 Ni61Nb30.5Zr3.5Sn5 合金被达到。压缩测试表明 Ni61Nb33.5Zr3.5Sn2 合金拥有最好的机械性质，与收益力量 3180 MPa，破裂力量 3390 MPa 和塑料紧张 1.3% 。扫描电子显微镜学检验的破裂表面显示合金在破裂行为从韧性有转变到易碎物。高 GFA，高热的稳定性，高力量和压缩粘性的联合为设计应用使这些合金潜在地吸引人。

英文摘要：

The effect of tin （Sn） addition on the glass forming ability （GFA） and mechanical properties of the Ni-Nb-Zr ternary alloy system has been studied. The addition of Sn improves the GFA; Ni61Nb35.5-xZr3.5Snx （in at.%） alloys with x=1 can be cast into amorphous samples at least 3 mm in diameter using a copper mold injection-casting method. The critical size for glass formation decreases to 2 mm when x=5 because Ni2SnZr phase precipitates readily. The addition of Sn is also effective in enhancing the stability of the supercooled liquid; a maximum supercooled liquid region of 48 K was attained for the Ni61Nb30.5Zr3.5Sn5 alloy. Compression tests reveal that the Ni61Nb33.5Zr3.5Sn2 alloy possesses the best mechanical properties,with yield strength～3180 MPa,fracture strength～3390 MPa and plastic strain ～1.3%. The fracture surfaces examined by scanning electron microscopy indicate that the alloys have a transition from ductility to brittleness in fracture behavior. The combination of high GFA,high thermal stability,high strength and compressive plasticity makes these alloys potentially attractive for engineering applications.