Paper Title:
Fatigue Life Evaluation of Pipe Welds in Power Plant Using Advanced Nondestructive Methods
  Abstract

The objective of this study is to estimate the feasibility of advanced nondestructive method(X-ray diffraction, AE(acoustic emission) and BN(barkhausen noise)measurement application for fatigue life evaluation of the high-temperature pipeline steel such as main steam pipe etc. in power plant. In this study, various nondestructive tests using various types of specimen simulated low cycle fatigue damage were performed in order to analyze fatigue properties when fatigue damage conditions become various stages such as 1/4, 1/2 and 3/4 of fatigue life, respectively. As a result of X-ray diffraction tests for specimens simulated fatigue damages, we conformed that the variation of the full width at half maximum intensity decreased in proportion to the increase of fatigue life ratio. And also, AE and BN signal due to fatigue damage has linear relationship with fatigue life ratio algebraically. From this relationship, it was suggested that direct expectation of the life consumption rate was feasible.

  Info
Periodical
Advanced Materials Research (Volumes 26-28)
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
1251-1254
DOI
10.4028/www.scientific.net/AMR.26-28.1251
Citation
S. G. Lee, K. B. Yoo, S. K. Park, D. G. Park, "Fatigue Life Evaluation of Pipe Welds in Power Plant Using Advanced Nondestructive Methods", Advanced Materials Research, Vols. 26-28, pp. 1251-1254, 2007
Online since
October 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Shinobu Okido, Hiroshi Suzuki, K. Saito
Abstract:Residual stress generated in Type-316 austenitic stainless steel butt-weld jointed by Inconel-182 was measured using a neutron diffraction...
697
Authors: Keun Bong Yoo, Hyun Sun Choi, Eui Hyun Kim, Sun Young Cho, Jae Hoon Kim
Abstract:The objective of this study is to estimate the feasibility of X-ray diffraction method application for fatigue life assessment of the...
497
Authors: Chao Chang A. Chen, Wei En Fu, Meng Ke Chen
Abstract:Subsurface residual stresses of tungsten films induced by Chemical Mechanical Polishing (CMP) processes were investigated by the Grazing...
75
Authors: Toshihiko Sasaki, Osama Yaguchi, Yuichi Kobayashi
Abstract:In order to study on the effects of grinding of rail head on rolling contact fatigue of rails, residual stress measurements were conducted...
2458
Authors: Toshihiko Sasaki, Osama Yaguchi, Hiroshi Suzuki
Abstract:In this study, the authors investigated the application of the area detector for the purpose of evaluating residual stress in rails by means...
260