Stress corrosion crack initiation in filler metal 82 in oxygenated high-temperature water

N. Supornpaibul; J. Duff; M.g. Burke; Y. Wang; F. Scenini

doi:10.1016/j.corsci.2023.111008

Stress corrosion crack initiation in filler metal 82 in oxygenated high-temperature water

N. Supornpaibul, J. Duff, M.g. Burke, Y. Wang, F. Scenini

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Abstract

The Stress Corrosion Cracking (SCC) initiation in filler metal (FM) 82 was studied in oxygenated (O2) water at 288 °C. Post-test microstructural characterization revealed that cracked grain boundaries (GBs) always exhibited a porous oxide incursion. Some intergranular (IG) cracks exhibited an oxide along the crack walls, which appeared to form after the crack advanced. Furthermore, similar porous oxide incursions were observed at the GBs on the non-stressed FM 82 coupon after oxidizing for a similar duration. The formation of oxide incursions is discussed, and the evolution of crack initiation is proposed.

Original language	English
Article number	111008
Journal	Corrosion Science
Volume	214
Early online date	23 Jan 2023
DOIs	https://doi.org/10.1016/j.corsci.2023.111008
Publication status	Published - 15 Apr 2023

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Henry Royce Institute

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AAM Nic Cor. Sci 1Accepted author manuscript, 8.3 MBLicence: CC BY

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title = "Stress corrosion crack initiation in filler metal 82 in oxygenated high-temperature water",

abstract = "The Stress Corrosion Cracking (SCC) initiation in filler metal (FM) 82 was studied in oxygenated (O2) water at 288 °C. Post-test microstructural characterization revealed that cracked grain boundaries (GBs) always exhibited a porous oxide incursion. Some intergranular (IG) cracks exhibited an oxide along the crack walls, which appeared to form after the crack advanced. Furthermore, similar porous oxide incursions were observed at the GBs on the non-stressed FM 82 coupon after oxidizing for a similar duration. The formation of oxide incursions is discussed, and the evolution of crack initiation is proposed.",

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T1 - Stress corrosion crack initiation in filler metal 82 in oxygenated high-temperature water

AU - Supornpaibul, N.

AU - Duff, J.

AU - Burke, M.g.

AU - Wang, Y.

AU - Scenini, F.

PY - 2023/4/15

Y1 - 2023/4/15

N2 - The Stress Corrosion Cracking (SCC) initiation in filler metal (FM) 82 was studied in oxygenated (O2) water at 288 °C. Post-test microstructural characterization revealed that cracked grain boundaries (GBs) always exhibited a porous oxide incursion. Some intergranular (IG) cracks exhibited an oxide along the crack walls, which appeared to form after the crack advanced. Furthermore, similar porous oxide incursions were observed at the GBs on the non-stressed FM 82 coupon after oxidizing for a similar duration. The formation of oxide incursions is discussed, and the evolution of crack initiation is proposed.

AB - The Stress Corrosion Cracking (SCC) initiation in filler metal (FM) 82 was studied in oxygenated (O2) water at 288 °C. Post-test microstructural characterization revealed that cracked grain boundaries (GBs) always exhibited a porous oxide incursion. Some intergranular (IG) cracks exhibited an oxide along the crack walls, which appeared to form after the crack advanced. Furthermore, similar porous oxide incursions were observed at the GBs on the non-stressed FM 82 coupon after oxidizing for a similar duration. The formation of oxide incursions is discussed, and the evolution of crack initiation is proposed.

U2 - 10.1016/j.corsci.2023.111008

DO - 10.1016/j.corsci.2023.111008

M3 - Article

SN - 0010-938X

VL - 214

JO - Corrosion Science

JF - Corrosion Science

M1 - 111008

ER -

Stress corrosion crack initiation in filler metal 82 in oxygenated high-temperature water

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