Prediction of creep crack initiation and growth for P91 at 600°C using MOD-NSW model

  • Han, J.-J.; 
  • Lee, H.-S.; 
  • Kim, Y.-J.; 
  • Kim, N.-H.; 
  • Kim, W.-G.; 
  • 외 2명
Citations

SCOPUS

6

초록

In this paper, predictions of creep crack initiation times and growth rates using the NSW-MOD model are compared with experimental data for the parent and weld metals of P91 at 600°C. For the weld metal, creep crack growth rates are found to be bounded by upper and lower bounds of the predictions, but creep crack initiation times are close to the upper bound. For the parent material, creep crack growth rates are bounded by upper and lower bounds of the predictions using the minimum creep rates, but creep crack initiation times are bounded by those using the average creep rates. © 2015 - IOS Press and the authors. All rights reserved.

키워드

analytical analysis; Creep crack growth rate; creep crack initiation time; modified NSW model; P91 martensitic steel; Carbonation; Crack initiation; Crack propagation; Cracks; Forecasting; Growth rate; Joints (structural components); Martensitic steel; Welds; Analytical analysis; Creep crack growth rate; Creep crack initiation; Creep rates; Minimum creep rates; Parent materials; Upper and lower bounds; Upper Bound; Creep
제목
Prediction of creep crack initiation and growth for P91 at 600°C using MOD-NSW model
저자
Han, J.-J.; Lee, H.-S.; Kim, Y.-J.; Kim, N.-H.; Kim, W.-G.; Lee, H.-Y.; Jerng, D.W.
DOI
10.3233/SFC-150184
발행일
2015
유형
Article
저널명
Strength, Fracture and Complexity
권
9
호
1
페이지
125 ~ 136