Effect of Temperature on the Preferential Intergranular Oxidation Susceptibility of Thermally-Treated Alloy 600

Liberato Volpe; Giacomo Bertali; Fabio Scenini; M. Grace Burke

Effect of Temperature on the Preferential Intergranular Oxidation Susceptibility of Thermally-Treated Alloy 600

Liberato Volpe, Giacomo Bertali, Fabio Scenini, M. Grace Burke

Materials Engineering

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

Abstract

Thermally-treated Alloy 600 coupons were tested in pressurized water reactor simulated primary water at 320 °C and in high-pressure superheated steam at 400 °C to study the effect of a “semi-continuous” network of intergranular carbides on the stress corrosion cracking “precursors events”: preferential intergranular oxidation (PIO) and diffusion-induced grain boundary migration (DIGM). The intergranular carbides were partially consumed due to the environmental exposure, whereby the Cr released from the carbides contributed to the formation of the external oxide layer that limited both PIO and DIGM. The results were compared with previous studies in which similar coupons were exposed to H2-steam.

Original language	English
Journal	Corrosion Science
Publication status	Accepted/In press - 4 Aug 2022

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Embargo ends: 1/01/32

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title = "Effect of Temperature on the Preferential Intergranular Oxidation Susceptibility of Thermally-Treated Alloy 600",

abstract = "Thermally-treated Alloy 600 coupons were tested in pressurized water reactor simulated primary water at 320 °C and in high-pressure superheated steam at 400 °C to study the effect of a “semi-continuous” network of intergranular carbides on the stress corrosion cracking “precursors events”: preferential intergranular oxidation (PIO) and diffusion-induced grain boundary migration (DIGM). The intergranular carbides were partially consumed due to the environmental exposure, whereby the Cr released from the carbides contributed to the formation of the external oxide layer that limited both PIO and DIGM. The results were compared with previous studies in which similar coupons were exposed to H2-steam.",

author = "Liberato Volpe and Giacomo Bertali and Fabio Scenini and Burke, {M. Grace}",

year = "2022",

month = aug,

day = "4",

language = "English",

journal = "Corrosion Science",

issn = "0010-938X",

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TY - JOUR

T1 - Effect of Temperature on the Preferential Intergranular Oxidation Susceptibility of Thermally-Treated Alloy 600

AU - Volpe, Liberato

AU - Bertali, Giacomo

AU - Scenini, Fabio

AU - Burke, M. Grace

PY - 2022/8/4

Y1 - 2022/8/4

N2 - Thermally-treated Alloy 600 coupons were tested in pressurized water reactor simulated primary water at 320 °C and in high-pressure superheated steam at 400 °C to study the effect of a “semi-continuous” network of intergranular carbides on the stress corrosion cracking “precursors events”: preferential intergranular oxidation (PIO) and diffusion-induced grain boundary migration (DIGM). The intergranular carbides were partially consumed due to the environmental exposure, whereby the Cr released from the carbides contributed to the formation of the external oxide layer that limited both PIO and DIGM. The results were compared with previous studies in which similar coupons were exposed to H2-steam.

AB - Thermally-treated Alloy 600 coupons were tested in pressurized water reactor simulated primary water at 320 °C and in high-pressure superheated steam at 400 °C to study the effect of a “semi-continuous” network of intergranular carbides on the stress corrosion cracking “precursors events”: preferential intergranular oxidation (PIO) and diffusion-induced grain boundary migration (DIGM). The intergranular carbides were partially consumed due to the environmental exposure, whereby the Cr released from the carbides contributed to the formation of the external oxide layer that limited both PIO and DIGM. The results were compared with previous studies in which similar coupons were exposed to H2-steam.

M3 - Article

SN - 0010-938X

JO - Corrosion Science

JF - Corrosion Science

ER -

Effect of Temperature on the Preferential Intergranular Oxidation Susceptibility of Thermally-Treated Alloy 600

Abstract

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