Fractography of Stress Corrosion Cracking of 20% Cold Worked Type 304 H Stainless Steel Containing δ-Ferrite in Oxidizing Primary Water

• Autorzy: Kim Hong-Pyo , Lee Jong-Yeon , Cho Sung-Hwan , Choi Min-Jae , Kim Sung-Woo , Jin Hyung-Ha , Kim Dong-Jin , Hwang Seoung-Sik , Lim Yun-Soo

Identyfikatory

DOI

10.24425/amm.2024.147783

• Języki publikacji: EN

Abstrakty

EN

Fractography of stress corrosion cracking (SCC) of 20% cold worked Type 304 H stainless steel containing δ-ferrite was studied using a compact tension (CT) specimen in oxidizing primary water with a scanning electron microscope (SEM) and electron back scattered diffraction (EBSD). The stress corrosion crack propagated mostly in transgranular stress corrosion cracking (TGSCC) mode and sometimes in intergranular stress corrosion cracking (IGSCC) mode. TGSCC paths were along the {111} plane with both high resolved shear stress and high resolved tensile stress. IGSCC preferentially propagated along the grain boundary perpendicular to the loading axis. The findings in this work suggest that TGSCC proceeds through formation of a weakening zone at the head of the crack tip by interaction of slip and corrosion and then cracking of the weakened zone by tensile stress.

Słowa kluczowe

EN

Type 304 H stainless steel; stress corrosion cracking; fractography; primary water

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 1
• Strony: 49--52
• Opis fizyczny: Bibliogr. 16 poz., fot., tab.

Twórcy

autor

Kim Hong-Pyo

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0002-9852-8377

autor

Lee Jong-Yeon

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0003-3193-9128

autor

Cho Sung-Hwan

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0009-0000-5857-016X

autor

Choi Min-Jae

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0002-7695-9168

autor

Kim Sung-Woo

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0002-1446-7037

autor

Jin Hyung-Ha

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0001-8304-3708

autor

Kim Dong-Jin

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0002-5896-8044

autor

Hwang Seoung-Sik

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0003-0211-6667

autor

Lim Yun-Soo

• Korea Atomic Energy Research Institute, Materials Safety Research Division, 989-111 Daedeok-daero, Yuseong-gu, Daejeon, 305-353, Republic of Korea

• https://orcid.org/0000-0002-8967-8250

Bibliografia

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Uwagi

This work was partly supported by grants from the National Research Foundation of Korea (grant number: RS-2022-00143718 and 2021M2E4A1037979) and the Korea Institute of Energy Technology Evaluation and Planning (grant number: 20191510301140) funded by the Korean government.