Structural transformations in the Al85Ni6.1Co2Gd6Si0.9 amorphous alloy during multiple rolling

被引：25

作者：

Abrosimova, G. ^{[1
]}

Aronin, A. ^{[1
]}

Barkalov, O. ^{[1
]}

Matveev, D. ^{[1
]}

Rybchenko, O. ^{[1
]}

Maslov, V. ^{[2
]}

Tkach, V. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow Oblast, Russia

[2] Natl Acad Sci Ukraine, Kurdyumov Inst Met Phys, UA-252680 Kiev, Ukraine

[3] Natl Acad Sci Ukraine, Galkin Donetsk Inst Phys & Engn, UA-83114 Donetsk, Ukraine

来源：

PHYSICS OF THE SOLID STATE | 2011年 / 53卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

TRANSMISSION ELECTRON-MICROSCOPY; AL88Y7FE5; ALLOY; CRYSTALLIZATION BEHAVIOR; MECHANICAL STRENGTH; PLASTIC-DEFORMATION; METALLIC GLASSES; NANOCRYSTALLIZATION; TEMPERATURE; AL90FE5GD5; ALUMINUM;

D O I：

10.1134/S1063783411020028

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of multiple rolling at room temperature on the structure and crystallization of the Al85Ni6.1Co2Gd6Si0.9 amorphous alloy has been studied using transmission electron microscopy, differential scanning calorimetry, and X-ray diffraction. The total plastic strain is 33%. It has been shown that the deformation results in the formation of aluminum nanocrystals with the average size that does not exceed 10-15 nm. The nanocrystals are formed in regions of localization of plastic deformation. The deformation decreases the thermal effect of nanocrystallization (similar to 15%) as compared to the heat release at the first stage of crystallization of the unstrained sample. The morphology, structure, and distribution of precipitates have been investigated. Possible mechanisms of the formation of nanocrystals during the deformation have been discussed.

引用

页码：229 / 233

页数：5

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