Structure Relaxation and Crystallization of Bulk Amorphous Zr43Cu50Al7 Alloy

Ye Bin Xiong Jiangang Li Bo Li Zhiyuan

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Structure Relaxation and Crystallization of Bulk Amorphous Zr₄₃Cu₅₀Al₇ Alloy
Issue 7, Pages: 385-388(2005)
Published： 2005 ，
DOI：

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[1]叶斌,熊建钢,李波,李志远.Zr_(43)Cu_(50)Al_7块体非晶合金的结构弛豫和晶化研究[J].特种铸造及有色合金,2005(07):385-388+381.

Ye Bin Xiong Jiangang Li Bo Li Zhiyuan. Structure Relaxation and Crystallization of Bulk Amorphous Zr₄₃Cu₅₀Al₇ Alloy. [J]. Special Casting & Nonferrous Alloys (7):385-388(2005)
[1]叶斌,熊建钢,李波,李志远.Zr_(43)Cu_(50)Al_7块体非晶合金的结构弛豫和晶化研究[J].特种铸造及有色合金,2005(07):385-388+381. DOI：

Ye Bin Xiong Jiangang Li Bo Li Zhiyuan. Structure Relaxation and Crystallization of Bulk Amorphous Zr₄₃Cu₅₀Al₇ Alloy. [J]. Special Casting & Nonferrous Alloys (7):385-388(2005) DOI：

摘要

在不同加热速率下应用差示扫描量热法（DSC）研究了Zr43Cu50Al7块体非晶合金的结构弛豫现象和晶化行为

得到了满意的晶化曲线。由晶化曲线得到弛豫峰与玻璃转变温度（Tg）、晶化起始温度（Tx）和晶化峰温度（Tp）。Zr43Cu50Al7非晶合金的过冷液相区ΔTx达76.2K

具有较强的玻璃形成能力。对所得到的弛豫峰作了初步的研究

并运用Kissinger法和De-loy法分别计算出玻璃转变激活能Eg、晶化起始激活能Ec、晶化峰的激活能Ep和晶化阶段激活能Ex。结果表明Zr43Cu50Al7块体非晶合金具有良好的热稳定性。

Abstract

Desirable crystallization curves were obtained by investigating the structure relaxation phenomenon and crystallization behavior of bulk amorphous Zr

alloy by differential scanning calorimetry （DSC） at different rates

in which the relaxation values

glass transition temperature T

crystallization initiation temperature T

and crystallization peak temperature T

were described.The amorphous alloy possesses a higher glass forming ability with temperature of supercooled liquid region up to 76.2 K.Preliminary approach to the obtained curves was conducted

and the activation energy for T

and phase crystallization E

were determined by the Kissinger and Deloy method.It was indicated that the obtained amorphous alloy has excellent heat stability.