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

Jae Jun Han; Han Sang Lee; Yun-Jae Kim; Nak Hyun Kim; Woo Gon Kim; Hyeong Yeon Lee; Dong Wook Jerng

doi:10.3233/SFC-150184

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

Jae Jun Han, Han Sang Lee, Yun-Jae Kim, Nak Hyun Kim, Woo Gon Kim, Hyeong Yeon Lee, Dong Wook Jerng

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	125-136
Number of pages	12
Journal	Strength, Fracture and Complexity
Volume	9
Issue number	1
DOIs	https://doi.org/10.3233/SFC-150184
Publication status	Published - 2015 May 20

Keywords

analytical analysis
Creep crack growth rate
creep crack initiation time
modified NSW model
P91 martensitic steel

ASJC Scopus subject areas

Mechanical Engineering
Mechanics of Materials
Condensed Matter Physics

Access to Document

10.3233/SFC-150184

Fingerprint Dive into the research topics of 'Prediction of creep crack initiation and growth for P91 at 600°C using MOD-NSW model'. Together they form a unique fingerprint.

Cite this

@article{d39112cf5969421096f1b438f863e783,

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

abstract = "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.",

keywords = "analytical analysis, Creep crack growth rate, creep crack initiation time, modified NSW model, P91 martensitic steel",

author = "Han, {Jae Jun} and Lee, {Han Sang} and Yun-Jae Kim and Kim, {Nak Hyun} and Kim, {Woo Gon} and Lee, {Hyeong Yeon} and Jerng, {Dong Wook}",

year = "2015",

month = may,

day = "20",

doi = "10.3233/SFC-150184",

language = "English",

volume = "9",

pages = "125--136",

journal = "Strength, Fracture and Complexity",

issn = "1567-2069",

publisher = "IOS Press",

number = "1",

}

TY - JOUR

T1 - Prediction of creep crack initiation and growth for P91 at 600°C using MOD-NSW model

AU - Han, Jae Jun

AU - Lee, Han Sang

AU - Kim, Yun-Jae

AU - Kim, Nak Hyun

AU - Kim, Woo Gon

AU - Lee, Hyeong Yeon

AU - Jerng, Dong Wook

PY - 2015/5/20

Y1 - 2015/5/20

N2 - 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.

AB - 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.

KW - analytical analysis

KW - Creep crack growth rate

KW - creep crack initiation time

KW - modified NSW model

KW - P91 martensitic steel

UR - http://www.scopus.com/inward/record.url?scp=84930166761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930166761&partnerID=8YFLogxK

U2 - 10.3233/SFC-150184

DO - 10.3233/SFC-150184

M3 - Article

AN - SCOPUS:84930166761

VL - 9

SP - 125

EP - 136

JO - Strength, Fracture and Complexity

JF - Strength, Fracture and Complexity

SN - 1567-2069

IS - 1

ER -