Effect of preemptive weld overlay on residual stress mitigation for dissimilar metal weld of nuclear power plant pressurizer

Tae Kwang Song, Hong Yeol Bae, Yun Bae Chun, Chang Young Oh, Yun Jae Kim, Kyoung Soo Lee, Chi Yong Park

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Weld overlay is one of the residual stress mitigation methods which arrest crack initiation and crack growth. Therefore weld overlay can be applied to the region where cracking is likely to be. An overlay weld used in this manner is termed a preemptive weld overlay(PWOL). In pressurized water reactor(PWR) dissimilar metal weld is susceptible region for primary water stress corrosion cracking(PWSCC). In order to examine the effect of PWOL on residual stress mitigation, PWOL was applied to a specific dissimilar metal weld of Kori nuclear power plant by finite element analysis method. As a result, strong compressive residual stress was made in PWSCC susceptible region and PWOL was proved effective preemptive repair method for weldment.

Original languageEnglish
Pages (from-to)873-881
Number of pages9
JournalTransactions of the Korean Society of Mechanical Engineers, A
Volume32
Issue number10
DOIs
Publication statusPublished - 2008 Oct 1
Externally publishedYes

Fingerprint

Dissimilar metals
Nuclear power plants
Residual stresses
Welds
Stress corrosion cracking
Pressurized water reactors
Compressive stress
Crack initiation
Water
Crack propagation
Repair
Finite element method

Keywords

  • Dissimilar metal weld
  • Preemptive weld overlay
  • PWSCC
  • Welding residual stress

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Effect of preemptive weld overlay on residual stress mitigation for dissimilar metal weld of nuclear power plant pressurizer. / Song, Tae Kwang; Bae, Hong Yeol; Chun, Yun Bae; Oh, Chang Young; Kim, Yun Jae; Lee, Kyoung Soo; Park, Chi Yong.

In: Transactions of the Korean Society of Mechanical Engineers, A, Vol. 32, No. 10, 01.10.2008, p. 873-881.

Research output: Contribution to journalArticle

Song, Tae Kwang ; Bae, Hong Yeol ; Chun, Yun Bae ; Oh, Chang Young ; Kim, Yun Jae ; Lee, Kyoung Soo ; Park, Chi Yong. / Effect of preemptive weld overlay on residual stress mitigation for dissimilar metal weld of nuclear power plant pressurizer. In: Transactions of the Korean Society of Mechanical Engineers, A. 2008 ; Vol. 32, No. 10. pp. 873-881.
@article{19f30ff85b494952b3a323cb8df903c3,
title = "Effect of preemptive weld overlay on residual stress mitigation for dissimilar metal weld of nuclear power plant pressurizer",
abstract = "Weld overlay is one of the residual stress mitigation methods which arrest crack initiation and crack growth. Therefore weld overlay can be applied to the region where cracking is likely to be. An overlay weld used in this manner is termed a preemptive weld overlay(PWOL). In pressurized water reactor(PWR) dissimilar metal weld is susceptible region for primary water stress corrosion cracking(PWSCC). In order to examine the effect of PWOL on residual stress mitigation, PWOL was applied to a specific dissimilar metal weld of Kori nuclear power plant by finite element analysis method. As a result, strong compressive residual stress was made in PWSCC susceptible region and PWOL was proved effective preemptive repair method for weldment.",
keywords = "Dissimilar metal weld, Preemptive weld overlay, PWSCC, Welding residual stress",
author = "Song, {Tae Kwang} and Bae, {Hong Yeol} and Chun, {Yun Bae} and Oh, {Chang Young} and Kim, {Yun Jae} and Lee, {Kyoung Soo} and Park, {Chi Yong}",
year = "2008",
month = "10",
day = "1",
doi = "10.3795/KSME-A.2008.32.10.873",
language = "English",
volume = "32",
pages = "873--881",
journal = "Transactions of the Korean Society of Mechanical Engineers, A",
issn = "1226-4873",
publisher = "Korean Society of Mechanical Engineers",
number = "10",

}

TY - JOUR

T1 - Effect of preemptive weld overlay on residual stress mitigation for dissimilar metal weld of nuclear power plant pressurizer

AU - Song, Tae Kwang

AU - Bae, Hong Yeol

AU - Chun, Yun Bae

AU - Oh, Chang Young

AU - Kim, Yun Jae

AU - Lee, Kyoung Soo

AU - Park, Chi Yong

PY - 2008/10/1

Y1 - 2008/10/1

N2 - Weld overlay is one of the residual stress mitigation methods which arrest crack initiation and crack growth. Therefore weld overlay can be applied to the region where cracking is likely to be. An overlay weld used in this manner is termed a preemptive weld overlay(PWOL). In pressurized water reactor(PWR) dissimilar metal weld is susceptible region for primary water stress corrosion cracking(PWSCC). In order to examine the effect of PWOL on residual stress mitigation, PWOL was applied to a specific dissimilar metal weld of Kori nuclear power plant by finite element analysis method. As a result, strong compressive residual stress was made in PWSCC susceptible region and PWOL was proved effective preemptive repair method for weldment.

AB - Weld overlay is one of the residual stress mitigation methods which arrest crack initiation and crack growth. Therefore weld overlay can be applied to the region where cracking is likely to be. An overlay weld used in this manner is termed a preemptive weld overlay(PWOL). In pressurized water reactor(PWR) dissimilar metal weld is susceptible region for primary water stress corrosion cracking(PWSCC). In order to examine the effect of PWOL on residual stress mitigation, PWOL was applied to a specific dissimilar metal weld of Kori nuclear power plant by finite element analysis method. As a result, strong compressive residual stress was made in PWSCC susceptible region and PWOL was proved effective preemptive repair method for weldment.

KW - Dissimilar metal weld

KW - Preemptive weld overlay

KW - PWSCC

KW - Welding residual stress

UR - http://www.scopus.com/inward/record.url?scp=54449097530&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54449097530&partnerID=8YFLogxK

U2 - 10.3795/KSME-A.2008.32.10.873

DO - 10.3795/KSME-A.2008.32.10.873

M3 - Article

AN - SCOPUS:54449097530

VL - 32

SP - 873

EP - 881

JO - Transactions of the Korean Society of Mechanical Engineers, A

JF - Transactions of the Korean Society of Mechanical Engineers, A

SN - 1226-4873

IS - 10

ER -