Long-Term Changes in a Heat Exchanger Steel

被引：0
|
作者：
Ettore Carpene
Peter Schaaf
Shmuel Ariely
Rony Schnek
机构：
[1] Universität Göttingen,Physikalisches Institut
[2] II,Department of Materials Engineering
[3] Israel Electricity Company,undefined
[4] Ben-Gurion University of the Negev,undefined
来源：
Hyperfine Interactions | 2002年 / 139-140卷
关键词：
ASTM A213 P22; creep;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The steel ASTM A213 P22 is used for superheater outlet header in power plants. During duty cycles lasting over tens of years the temperature is of the order of 545°C and the pressure 125 atm. The microscopic changes in these steels are hard to analyze under working conditions, but they are believed to be responsible for the appearance of creeps in such devices. Investigation of the microscopic modifications will help to predict future failures due to creeps, increasing the reliability and saving a lot of money.
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页码：495 / 499
页数：4
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