A STUDY OF DEFORMATION AND DAMAGE ACCUMULATION PROCESSES IN 10GN2MFA STEEL UNDER LOW-CYCLE LOADING

被引：6

作者：

Lebedev, A. A. ^{[1
]}

Makovetskii, I. V. ^{[1
]}

Muzyka, N. R. ^{[1
]}

Shvets, V. P. ^{[1
]}

机构：

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

来源：

STRENGTH OF MATERIALS | 2008年 / 40卷 / 02期

关键词：

static strength; fatigue; stresses; strains; hardness; scatter of properties; damage level;

D O I：

10.1007/s11223-008-9000-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The paper presents results of the experimental investigation of deformation behavior and damage accumulation kinetics in a heat-resistant reactor pressure vessel steel at high stress levels under stress-controlled (pulsating), low-cycle loading up to 10(4) cycles. Hardness measurements have been performed upon various operating time periods under elastoplastic deformation. It has been found that hardness and strength of the steel exhibit qualitatively different behaviors throughout the lifetime. The damage accumulation process in steels under static and cyclic loadings has been studied by means of the LM-hardness method. The curves of Weibull homogeneity coefficient vs. cycling stress and accumulated strains are obtained.

引用

页码：163 / 167

页数：5