INTERNAL FRICTION PEAK IN B2 Fe-Al ALLOYS DURING ORDERING PROCESS

被引：0

作者：

Wu Jie ^{[1
]}

Cui Hongzhi ^{[1
]}

Chi Jing ^{[1
]}

Yao Shuyu ^{[1
]}

Han Fusheng ^{[2
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266510, Peoples R China

[2] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

ACTA METALLURGICA SINICA | 2009年 / 45卷 / 04期

关键词：

B2 Fe-Al alloy; internal friction; degree of order; antisite atom; INTERMETALLIC COMPOUND FEAL; DISORDER TRANSFORMATION; DAMPING BEHAVIOR; RELAXATION; TRANSITION; KINETICS;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The internal friction behaviors of B2 Fe-Al alloys were examined to understand the correlation between the ordering process and the atomic movement. An internal friction peak was found at around 570 degrees C in the oil-cooled Fe47Al53 alloy, while the peak in the furnace-cooled specimens disappeared. The peak has the typical phase transition character. Combined with analyses of XRD and DSC, it is proposed that the peak originates from the ordering process, which is caused by the jump of antisite atoms to their own sublattice sites through the nearest neighboring vacancies. Similar internal peak was observed also at 540 degrees C for Fe57Al43 alloy.

引用

页码：396 / 399

页数：4

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