Alloying evolution and stability of Al65Cu20Ti15 during process of amorphisation by high energy ball milling

被引：3

作者：

Tan, Z. ^{[1
]}

Xue, Y. F. ^{[1
]}

Wang, L. ^{[1
]}

Cheng, X. W. ^{[1
]}

Zhang, L. ^{[1
]}

Zhang, H. F. ^{[2
]}

Wang, A. M. ^{[2
]}

机构：

[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

POWDER METALLURGY | 2012年 / 55卷 / 05期

关键词：

Mechanical alloying; Amorphisation; Phase transitions; X-ray diffraction; SOLID-STATE SYNTHESIS; AL;

D O I：

10.1179/1743290112Y.0000000005

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Mechanical alloying of Al65Cu20Ti15 powder blend has been carried out by high energy vibrating ball mill. The process of amorphisation in the mechanically alloyed Al65Cu20Ti15 powder and the stability of the amorphous phase during ball milling were investigated. Almost completely amorphous powder was achieved after 25 h ball milling. Examination of the microstructural constituents using X-ray diffraction and transmission electron microscopy shows that the amorphisation process was controlled by the transformation of both Al based solid solution and intermetallic compounds (Al2Cu, Cu9Al4 and AlCu2Ti). However, that prolonging the ball milling time to 30 h led to the appearance of Cu9Al4, the Al65Cu20Ti15 composite comprising nanocrystalline and amorphous phases could be stable after 50 h ball milling.

引用

页码：361 / 367

页数：7

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