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利用内耗法研究了5种不同GFA(非晶形成能力)的锆基非晶(分别为Zr_(41.2)Ti_(13.8)Cu_(12.5)Ni_(10)Be_(22.5)、Zr_(55)Al_(10)Ni_5Cu_(30)、Zr_(45)Cu_(45)Ag_5Al_5、Zr_(65)Al_(7.5)Ni_(10)Cu1_(7.5)、Zr_(57)Ti_5Al_(10)Cu_(20)Ni_8的力学行为,探索了内耗与GFA之间的关系。内耗温度曲线结果表明,GFA越大,非晶试样所产生的内耗峰值越高,且通过计算过冷液相区的激活能与从内耗的物理意义相联系,提出了一个表征同种体系GFA的新参数—内耗峰峰值。此外根据内耗频率曲线考察了不同GFA的锆基非晶的力学弛豫行为,GFA越大,其在过冷液相区内原子失稳的数量越多,力学弛豫时间越短。
Five kinds of Zr-based amorphous (Zr 41.2 Ti 13.8 Cu 12.5 Ni 10 Be 22.5 and Zr 55 Al 3 O 6) powders with different GFA (amorphous forming ability) 10) The mechanical behavior of Ni_5Cu_ (30), Zr_ (45) Cu_ (45) Ag_5Al_5, Zr_ (65) Al_ (7.5) Ni_ (10) Cu1_ (7.5), Zr_ (57) Ti_5Al_ (10) Cu_ (20) Ni_8 , The relationship between internal friction and GFA was explored.The results of internal friction temperature show that the larger the GFA is, the higher the internal friction peak produced by the amorphous sample is and the more the physical activation A new parameter of internal friction peak, which is a new parameter of GFA, was proposed.Furthermore, the mechanical relaxation behavior of zirconium-based amorphous alloys with different GFA was investigated according to the internal friction frequency curve. The larger the GFA, The more the number of atoms in the instability, the shorter the mechanical relaxation time.