PECULIARITIES OF NECK FORMATION UNDER LOW-TEMPERATURE DISCONTINUOUS YIELD OF METALS. PART 1. AXISYMMETRIC DEFORMATION

被引：3

作者：

Vorob'ev, E. V. ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Pisarenko Inst Problems Strength, Kiev, Ukraine

来源：

STRENGTH OF MATERIALS | 2008年 / 40卷 / 03期

关键词：

low-temperature discontinuous yield; specimen; neck formation; stress system; rigidity of stressed state; mechanical characteristics; standard method for tensile testing of metals;

D O I：

10.1007/s11223-008-9021-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In relation to the problem of determining reliable values of mechanical characteristics of metallic materials at temperatures below 30 K, the peculiarities of repeated neck fomation have been studied on cylindrical specimens of structural alloys for cryogenic engineering in the case of occurrence of the effect of low-temperature discontinuous yield. The evaluation performed of the rigidity and inhomogeneity of the three-dimensional stressed state of typical necks showed that it differs only slightly from linear stress, and that the use of such specimens for standard mechanical testing under deep freezing conditions is reasonable.

引用

页码：350 / 355

页数：6

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