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采用铜模喷铸法成功制备出成本较低、直径为2 mm的Ti基Ti50Cu42Ni8大块非晶合金.利用XRD、DSC及SEM等手段研究了Ti50Cu50-xNix(x=5, 8, 11)合金的非晶形成能力、力学性能与变形行为.结果表明:Ti50Cu42Ni8大块非晶合金具有明显且较高的玻璃转变温度Tg(659 K)、晶化初始温度Tx(716 K)、宽的过冷液相区ΔTx=Tx-Tg(57 K)、高的约化玻璃转变温度Trg=Tg/Tm(0.565)和压缩断裂强度(2008 MPa).

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