Deformation and dynamic recrystallization in copper at different deformation rates in Bridgman anvils

被引：18

作者：

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

Voronova, L. M. ^{[1
]}

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

Pokryshkina, D. K. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620990, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2011年 / 111卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

copper; deformation; high pressure; temperature-compensated rate of deformation; dynamic recrystallization; structure; hardness; PRESSURE; ALLOYS; SHEAR;

D O I：

10.1134/S0031918X11020049

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An analysis of structural changes taking place in copper upon deformation by shear under pressure has been performed using the Zener-Hollomon formalism. This analysis has shown that the temperature-strain-rate limits of the stages of structural states are independent of the rate of the anvil rotation. It has been demonstrated that the size of structural elements depends on the temperature-compensated rate of deformation. The use of a low rate of the anvil rotation has allowed detecting a cyclic character of dynamic recrystallization upon shear under pressure. A leading growth of some grains occurs during postdynamic recrystallization if the deformation is stopped at the stage of partial dynamic recrystallization or at the stage of complete dynamic recrystallization when the recrystallization cycle is not complete after the end of deformation.

引用

页码：304 / 313

页数：10

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