Locally delaminating stress corrosion cracking growth of strain-hardened austenitic alloys in hydrogenated high temperature water environments

Zhanpeng Lu, He Xue, Hiroyoshi Murakami, Tetsuo Shoji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Locally delaminating cracks, i.e. cracks that grow along the plane that is parallel to the principal applied loading direction, are observed on the fracture surfaces of heavily strain-hardened austenitic alloys after stress corrosion cracking tests in hydrogenated high temperature water environments. These delaminating cracks often occur locally on mixed intergranular- transgranular stress corrosion cracking fracture surfaces. The crack tip stress field is analyzed by finite element analysis. The physical-chemical degradation effect of stress on oxidation kinetics is formulated. The combinations of local oxidation penetration, relatively slow crack growth on the principal plane, and locally high crack tip stress are favorable for the growth of delaminating cracks. These conditions can be satisfied in stress corrosion cracking for austenitic alloys with heavily deformed microstructures and high strengths in hydrogenated high temperature water environments.

Original languageEnglish
Title of host publicationProceedings of the ASME Pressure Vessels and Piping Conference 2009 - Materials and Fabrication
Pages1101-1108
Number of pages8
EditionPART B
DOIs
Publication statusPublished - 2010 Jun 7
Event2009 ASME Pressure Vessels and Piping Conference - Prague, Czech Republic
Duration: 2009 Jul 262009 Jul 30

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
NumberPART B
Volume6
ISSN (Print)0277-027X

Other

Other2009 ASME Pressure Vessels and Piping Conference
CountryCzech Republic
CityPrague
Period09/7/2609/7/30

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Lu, Z., Xue, H., Murakami, H., & Shoji, T. (2010). Locally delaminating stress corrosion cracking growth of strain-hardened austenitic alloys in hydrogenated high temperature water environments. In Proceedings of the ASME Pressure Vessels and Piping Conference 2009 - Materials and Fabrication (PART B ed., pp. 1101-1108). (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6, No. PART B). https://doi.org/10.1115/PVP2009-77622