CYCLIC CRACK-GROWTH EVALUATION OF A 20MNMONI55 PIPING STEEL IN HIGH-OXYGEN REACTOR WATER

被引：2

作者：

AALTONEN, P

RINTAMAA, R

HANNINEN, H

EHRNSTEN, U

ARILAHTI, E

机构：

[1] Technical Research Centre of Finland (VTT), Metals Laboratory

来源：

NUCLEAR ENGINEERING AND DESIGN | 1993年 / 144卷 / 01期

关键词：

D O I：

10.1016/0029-5493(93)90013-Y

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Samples of a low alloy steel piping material taken from the full scale corrosion fatigue test loop of the Heissdampfreaktor (HDR) plant have been tested at 240-degrees-C in high oxygen reactor water. The small-scale specimens (CT25) were exposed to a similar loading spectrum to that which has been used in the full-scale corrosion fatigue tests at the HDR-plant. During the autoclave tests cyclic crack growth rates were determined. Fracture surface investigations were performed not only for the laboratory test specimens but also for the fracture surface of a sample taken from the HDR test loop piping after the full scale test. In this paper the autoclave testing results and fracture surface observations are presented and compared to those obtained in the HDR piping tests.

引用

页码：111 / 122

页数：12