Influence of the sign of the load on deformation instability and fracture of aluminum and its alloys at liquid-helium temperatures

被引：3

作者：

Shpeizman, VV ^{[1
]}

Nikolaev, VI ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

PHYSICS OF THE SOLID STATE | 1998年 / 40卷 / 02期

关键词：

Aluminum; Spectroscopy; State Physics; Helium; Liquid Helium;

D O I：

10.1134/1.1130281

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An analysis is made of the influence of impurity content and of the sign and variation of the load on the stress-strain curves of aluminum at liquid helium temperatures. It is shown that the deformation instability, observed as jumps in the diagrams, depends on all these factors. When the sign of the load is reversed, the amplitude of the deformation jumps increases, which leads to the appearance of macrocracks, even under compression. The temperature-strain rate region of unstable deformation was determined for the alloy D16T. (C) 1998 American Institute of Physics.

引用

页码：234 / 237

页数：4

共 3 条

[1] Influence of the sign of the load on deformation instability and fracture of aluminum and its alloys at liquid-helium temperatures
V. V. Shpeizman
V. I. Nikolaev
Physics of the Solid State, 1998, 40 : 234 - 237
[2] Deformation instability and fracture at liquid-helium temperature
V. I. Nikolaev
V. V. Shpeizman
Physics of the Solid State, 1997, 39 : 565 - 569
[3] Deformation instability and fracture at liquid-helium temperature
Nikolaev, VI
Shpeizman, VV
PHYSICS OF THE SOLID STATE, 1997, 39 (04) : 565 - 569

← 1 →