Mechano-Chemical Polishing of Alloy 600 for Accelerated Crack Initiation in Simulated PWR Primary Water Environment and Three-Dimensional Crystallographic Characterization

Jung, Ki-Taek; Tsuchiya, Hiroaki; Fujimoto, Shinji

Materials Transactions, 2020, 61(7), 1339-1345

Number of Access:769（2025-10-05 11:31 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/82367

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
mattrans_61_7_1339 pdf None 4.07 MB 148 2021.07.08  

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Mechano-Chemical Polishing of Alloy 600 for Accelerated Crack Initiation in Simulated PWR Primary Water Environment and Three-Dimensional Crystallographic Characterization
Creator
CreatorName
Jung, Ki-Taek
NRID
1000050432513 1000050432513
ORCID
0000-0001-5619-0139 0000-0001-5619-0139
researchmap permalink
read0076368 read0076368
Scopus Author ID
7202203364 7202203364
CreatorName
Tsuchiya, Hiroaki
NRID
1000070199371 1000070199371
ORCID
0000-0002-7787-4190 0000-0002-7787-4190
researchmap permalink
read0013980 read0013980
Scopus Author ID
57211614674 57211614674
CreatorName
Fujimoto, Shinji
Subject
intergranular stress corrosion cracking
Alloy 600
pressurized water reactor
three-dimensional characterization
Abstract
In this study, we propose a simple approach to accelerate crack initiation in intergranular stress corrosion cracking (IGSCC) of Alloy 600 in a simulated pressurized water reactor (PWR) primary water environment. In addition, we perform three-dimensional crystallographic characterization of the crack initiation by electron backscatter diffraction (EBSD). Initiation of IGSCC of the alloy in the PWR primary environment was realized for a flat tensile specimen in a considerably short time through a slow strain rate test (SSRT). The accelerated initiation was attributed to the asperity of the alloy surface induced by mechano-chemical polishing with colloidal silica suspension before the SSRT was conducted. Following the SSRT, the specimen surfaces were covered with thick oxide films, which prevented EBSD measurements. The sputtering of thick oxide films enabled us to characterize cracks with EBSD, thus yielding important information on IGSCC. Finally, an approach for three-dimensional characterization of crack initiation is discussed.
Publisher
The Japan Institute of Metals and Materials
日本金属学会
Source Title
Materials Transactions
Volume (Issue)
61(7)
Page
1339-1345
Date of Issued
2020-07-01
Language
English
Handle URL
https://hdl.handle.net/11094/82367
PISSN
13459678
eISSN
13475320
NCID
AA1151294X
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.2320/matertrans.MT-M2019275
Access Rights
open access
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article