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
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
收藏
页码:21 / 24
页数:4
相关论文
共 6 条
[1]  
KORNILOV II, 1966, METAL CHEM ELEMENTS
[2]  
Mirzaev DA, 2002, PHYS MET METALLOGR+, V93, P558
[3]  
Mirzaev DA, 2002, PHYS MET METALLOGR+, V93, P552
[4]  
NIKOLIN BI, 1984, MULTILAYER STRUCTURE
[5]  
RODIONOV DP, 1996, SINGLE CRYSTALS STEE
[6]  
WASSERMANN G, 1932, METALLWIRTSCH, V11, P61