Environmental fatigue crack propagation behavior of cast stainless steels under PWR condition

被引：6

作者：

Jeong, IS ^{[1
]}

Kim, SJ

Song, TH

Kwon, JJ

Hong, SY

Cho, SY

机构：

[1] Korea Elect Power Res Inst, Taejon, South Korea

[2] Korea Lab Engn Syst, Sch Mech Engn 21308, Suwon, South Korea

来源：

ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4 | 2005年 / 297-300卷

关键词：

environmental fatigue; crack propagation rate; PWR condition;

D O I：

10.4028/www.scientific.net/KEM.297-300.968

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Environmental fatigue crack propagation of CF8M and CF8A steels used in the domestic nuclear power plants (NPPs) were investigated on the simulated pressurized water reactor (PWR) condition (temperature: 316 degrees C, pressure: 15MPa). The test equipment for environmental fatigue (high temperature-high pressure loop, autoclave, load frame, and measurement system) was designed. As-received and 60-year aged specimens were used in the test. To compare with environmental fatigue test, another test in the air condition was performed. The fracture surfaces of specimens were difficult to verify the fracture modes such as striation, inter-granular crack and cleavage and so on. As the ferrite content of CF8M is increased, more particles on the fracture surface were peeled.

引用

页码：968 / 973

页数：6