EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.

Naganand Saravanan; Phani S. Karamched; Morgane  Le Faucheur; Emilien Burger; Fabio Scenini; Sergio Lozano-Perez

EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.

Naganand Saravanan, Phani S. Karamched, Morgane Le Faucheur, Emilien Burger, Fabio Scenini, Sergio Lozano-Perez

Materials Engineering

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

In this work, strain and geometric necessary dislocation (GNDs) have been measured around various grain boundaries after subjected to a 4-point bend test in simulated PWR primary water conditions, with the aim of clarifying which local conditions trigger SCC initiation. Three different regions are compared: in a cracked grain boundary, the cracked and the uncracked portions are compared to a similar grain boundary in the as-received material. l. To study this, “on-axis” Transmission Kikuchi Diffraction (TKD) with a step size of 1 nm followed by GND analysis and cross-correlation based strain mapping, was performed. Results together with a discussion on the limitations of the approach will be presented.

Original language	English
Title of host publication	19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference
Publication status	Accepted/In press - 1 Jul 2019
Event	19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors - Boston, United States Duration: 18 Aug 2019 → 22 Aug 2019 http://envdeg.ans.org/

Conference

Conference	19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors
Country/Territory	United States
City	Boston
Period	18/08/19 → 22/08/19
Internet address	http://envdeg.ans.org/

Embargoed Document

EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.
Accepted author manuscript, 840 KB
Embargo ends: 1/01/29

Cite this

@inproceedings{5a397c9ec45344e29241992dffc11e20,

title = "EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.",

abstract = "In this work, strain and geometric necessary dislocation (GNDs) have been measured around various grain boundaries after subjected to a 4-point bend test in simulated PWR primary water conditions, with the aim of clarifying which local conditions trigger SCC initiation. Three different regions are compared: in a cracked grain boundary, the cracked and the uncracked portions are compared to a similar grain boundary in the as-received material. l. To study this, “on-axis” Transmission Kikuchi Diffraction (TKD) with a step size of 1 nm followed by GND analysis and cross-correlation based strain mapping, was performed. Results together with a discussion on the limitations of the approach will be presented.",

author = "Naganand Saravanan and Karamched, \{Phani S.\} and \{Le Faucheur\}, Morgane and Emilien Burger and Fabio Scenini and Sergio Lozano-Perez",

year = "2019",

month = jul,

day = "1",

language = "English",

booktitle = "19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference",

note = "19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors ; Conference date: 18-08-2019 Through 22-08-2019",

url = "http://envdeg.ans.org/",

}

Saravanan, N, Karamched, PS, Le Faucheur, M, Burger, E, Scenini, F & Lozano-Perez, S 2019, EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600. in 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference . 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors, Boston, Massachusetts, United States, 18/08/19.

EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600. / Saravanan, Naganand; Karamched, Phani S.; Le Faucheur, Morgane et al.
19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference . 2019.

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.

AU - Saravanan, Naganand

AU - Karamched, Phani S.

AU - Le Faucheur, Morgane

AU - Burger, Emilien

AU - Scenini, Fabio

AU - Lozano-Perez, Sergio

PY - 2019/7/1

Y1 - 2019/7/1

N2 - In this work, strain and geometric necessary dislocation (GNDs) have been measured around various grain boundaries after subjected to a 4-point bend test in simulated PWR primary water conditions, with the aim of clarifying which local conditions trigger SCC initiation. Three different regions are compared: in a cracked grain boundary, the cracked and the uncracked portions are compared to a similar grain boundary in the as-received material. l. To study this, “on-axis” Transmission Kikuchi Diffraction (TKD) with a step size of 1 nm followed by GND analysis and cross-correlation based strain mapping, was performed. Results together with a discussion on the limitations of the approach will be presented.

AB - In this work, strain and geometric necessary dislocation (GNDs) have been measured around various grain boundaries after subjected to a 4-point bend test in simulated PWR primary water conditions, with the aim of clarifying which local conditions trigger SCC initiation. Three different regions are compared: in a cracked grain boundary, the cracked and the uncracked portions are compared to a similar grain boundary in the as-received material. l. To study this, “on-axis” Transmission Kikuchi Diffraction (TKD) with a step size of 1 nm followed by GND analysis and cross-correlation based strain mapping, was performed. Results together with a discussion on the limitations of the approach will be presented.

M3 - Conference contribution

BT - 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference

T2 - 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors

Y2 - 18 August 2019 through 22 August 2019

ER -

EFFECT OF LOCAL STRAIN AND GND DENSITY ON CRACK INITIATION IN ALLOY 600.

Abstract

Conference

Embargoed Document

Fingerprint

Cite this