MICROMECHANISM OF CRYSTALLIZATION OF FE80B20 AMORPHOUS ALLOY

被引：7

作者：

DUHAJ, P ^{[1
]}

SVEC, P ^{[1
]}

ZEMCIK, T ^{[1
]}

机构：

[1] CZECHOSLOVAK ACAD SCI, INST PHYS MET, CS-61662 BRNO, CZECHOSLOVAKIA

来源：

MATERIALS LETTERS | 1990年 / 9卷 / 7-8期

关键词：

Iron Boron Alloys--Amorphous - Metallography--Microstructure - Spectroscopy; Mossbauer;

D O I：

10.1016/0167-577X(90)90052-N

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystallization of rapidly heated samples of Fe80B20 has been studied using the methods of electron microscopy, electron diffraction and Mössbauer spectroscopy. Samples have been annealed at temperatures from 733 to 803 K, which is about 100 degrees above the usual crystallization temperatures. We have found that at temperatures around 733 K supersaturated solid solution of boron in α-Fe, Fe4B, is formed. With increasing time or temperature of annealing tetragonal Fe3B, orthorhombic Fe3B and tetragonal Fe2B are formed, respectively. The morphology of these phases remains spherulitic. Mössbauer spectroscopy has proven that the initial stage of crystallization is characterised by tetragonality similar to the martensitic α-FeC lattice. © 1990.

引用

页码：235 / 241

页数：7

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