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Creep flaws and life expectancy diagnosis of high-temperature equipment. Koon kiki no creep sonsho to yojumyo shindan

Abstract

Reliability evaluation and life expectancy diagnosis of high-temperature equipment such as thermal power plants have come to be marked with the background that the plants constructed during the rapidly growing period are getting old, and that the extension of the lives and and the increase of the efficiency of existing plants are in demand. This report introduces creep flaw evaluation and the technologies for life expectancy diagnosis of steel pipes for thermal power generation (steel pipes of boilers). Experiments carried out to study the forms of creep flaws on the steel pipes of boilers are introduced. Life expectancy diagnosis of the heat exchangers of boilers is conducted with a three-step life expectancy diagnostic system. The step 1 is nondestructive inspection conducted in the boilers of real equipment such as high-temperature corrosion inspection, dimension measurement, surface texture inspection and nondestructive flaw measurement. The step 2 is the texture inspection, the flaw determination and the character test of sampling materials. The step 3 evaluates lives directly with time-taking single axis/internal pressure and acceleration creep tests. 15 refs., 9 figs., 1 tab.
Authors:
Iseda, A [1] 
  1. Sumitomo Metal Industries, Ltd., Osaka (Japan)
Publication Date:
Oct 01, 1990
Product Type:
Journal Article
Reference Number:
NEDO-90-912851; EDB-91-050777
Resource Relation:
Journal Name: Yosetsu Gijutsu (Welding Technique); (Japan); Journal Volume: 38:10
Subject:
20 FOSSIL-FUELED POWER PLANTS; 42 ENGINEERING; SERVICE LIFE; DIAGNOSTIC TECHNIQUES; THERMAL POWER PLANTS; CREEP; TUBES; BOILERS; STEELS; CHEMICAL ANALYSIS; MICROSTRUCTURE; NONDESTRUCTIVE TESTING; SAMPLE PREPARATION; ALLOYS; CRYSTAL STRUCTURE; IRON ALLOYS; IRON BASE ALLOYS; MATERIALS TESTING; MECHANICAL PROPERTIES; POWER PLANTS; TESTING; 200100* - Fossil-Fueled Power Plants- Power Plants & Power Generation; 420500 - Engineering- Materials Testing
OSTI ID:
6146910
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0387-0197; CODEN: YOGIA
Submitting Site:
NEDO
Size:
Pages: 62-66
Announcement Date:
May 01, 1991

Citation Formats

Iseda, A. Creep flaws and life expectancy diagnosis of high-temperature equipment. Koon kiki no creep sonsho to yojumyo shindan. Japan: N. p., 1990. Web.
Iseda, A. Creep flaws and life expectancy diagnosis of high-temperature equipment. Koon kiki no creep sonsho to yojumyo shindan. Japan.
Iseda, A. 1990. "Creep flaws and life expectancy diagnosis of high-temperature equipment. Koon kiki no creep sonsho to yojumyo shindan." Japan.
@misc{etde_6146910,
title = {Creep flaws and life expectancy diagnosis of high-temperature equipment. Koon kiki no creep sonsho to yojumyo shindan}
author = {Iseda, A}
abstractNote = {Reliability evaluation and life expectancy diagnosis of high-temperature equipment such as thermal power plants have come to be marked with the background that the plants constructed during the rapidly growing period are getting old, and that the extension of the lives and and the increase of the efficiency of existing plants are in demand. This report introduces creep flaw evaluation and the technologies for life expectancy diagnosis of steel pipes for thermal power generation (steel pipes of boilers). Experiments carried out to study the forms of creep flaws on the steel pipes of boilers are introduced. Life expectancy diagnosis of the heat exchangers of boilers is conducted with a three-step life expectancy diagnostic system. The step 1 is nondestructive inspection conducted in the boilers of real equipment such as high-temperature corrosion inspection, dimension measurement, surface texture inspection and nondestructive flaw measurement. The step 2 is the texture inspection, the flaw determination and the character test of sampling materials. The step 3 evaluates lives directly with time-taking single axis/internal pressure and acceleration creep tests. 15 refs., 9 figs., 1 tab.}
journal = []
volume = {38:10}
journal type = {AC}
place = {Japan}
year = {1990}
month = {Oct}
}