Amorphization in mechanically alloyed (Ti, Zr, Nb)-(Cu, Ni)-Al equiatomic alloys
Amorphization in mechanically alloyed (Ti, Zr, Nb)-(Cu, Ni)-Al equiatomic alloys
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DOI：
10.1016/j.jallcom.2006.03.092
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发表时间：
2007-01
影响因子：
6.2
通讯作者：
Lai‐Chang Zhang;K. B. Kim;P. Yu;Wenyong Zhang;U. Kunz;J. Eckert
中科院分区：
文献类型：
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作者：
Lai‐Chang Zhang;K. B. Kim;P. Yu;Wenyong Zhang;U. Kunz;J. Eckert
研究了(Ti, Zr, Nb) - (Cu, Ni) - al等原子合金的机械合金化相形成。采用x射线衍射、透射电镜和差示扫描量热法对其结构特征和热稳定性进行了表征。当（Ti, Zr, Nb）含量在20% ~ 60at.%之间时，形成非晶相。最终产物以Cu和（Nb, Zr）相固溶体为主，（Ti, Zr, Nb）含量为10，≥70at。分别为%。所有非晶态相均具有大于125K的过冷液区，具有较高的抗结晶热稳定性。采用Miedema的模型计算了该多组分合金体系的玻璃成形范围。计算区域与实验结果吻合较好。
Phase formation by mechanical alloying in (Ti, Zr, Nb)–(Cu, Ni)–Al equiatomic alloys has been investigated. The structural features and the thermal stability were characterized by X-ray diffraction, transmission electron microscopy and differential scanning calorimetry. An amorphous phase forms when the (Ti, Zr, Nb) content is between 20 and 60at.%. In contrast, solid solutions of Cu and (Nb, Zr) phase dominate in the final product with (Ti, Zr, Nb) content of 10 and ≥70at.%, respectively. All amorphous phases have a large supercooled liquid region of over 125K, indicating a high thermal stability against crystallization. Miedema's model is used to calculate the glass-forming range in this multicomponent alloy system. The calculated region coincides well with the experimental results.