Formation of a structure in cobalt single crystals at the β → α transformation

被引：2

作者：

Schastlivtsev, V. M. ^{[1
]}

Khlebnikova, Yu. V. ^{[1
]}

Tabatchikova, T. I. ^{[1
]}

Rodionov, D. P. ^{[1
]}

Sazonova, V. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620219, Russia

来源：

DOKLADY PHYSICS | 2009年 / 54卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

POLYMORPHIC TRANSFORMATION;

D O I：

10.1134/S1028335809010066

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A study was conducted to observe the formation of structures in the oriented cobalt single crystals, 28 mm in diameter and 180 mm in length, at the β → α transformation. The study failed to find any indications of the existence of the residual high-temperature β-phase in the structure. The study observed that the quenching from a higher temperature in salted water guided the formation of selectively reflecting macroscopic domains at the surface of single crystal. The study also determined the crystallographic orientation of the α-phase in five different regions of the selective reflection with Laue patterns. The study revealed that the α-Co single crystal prepared by Czochralski method has a lamellar structure with one dominant orientation of the α-phase. The sequential double quenching of the α-Co crystal from the temperature range of the f.c.c. phase helped for recrystallization with a coarse-grain structure.

引用

页码：21 / 24

页数：4