Fourier analysis of ductile fracture surface for high-Cr steel

Naoya Yamada, Masatoshi Aramaki, Yoshimasa Funakawa, Yasushi Kate, Minoru Nakajima, Osamu Furukimi

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

    Abstract

    The cffccts of average diameter of Cr precipitates from 0.51 to O.SOjim on 0.2% proof strength, tensile strength and elongation were investigated in 16% Cr bearing steel, in which the amount of precipitates was similar. The 0.2% proof strength was decreased and the local elongation was increased by coarsening of precipitates. Comparing to the local elongation, the effect of the precipitate diameter on the uniform elongation was smaller. The fractography of fracture surfaces revealed that the coarsening of precipitates and the increase of intcrparticlc spacing causcd a reducing in the depth of the dimples. A linear relationship was found between the depth of the dimples and the intcrparticlc spacing by the Fourier analysis to the 3D image of fracture surfaces.

    Original languageEnglish
    Title of host publicationProceedings of the 17th IFHTSE Congress
    PublisherThe Japan Society for Heat Treatment (JSHT)
    Pages533-536
    Number of pages4
    Volume2
    ISBN (Electronic)9780000000002
    Publication statusPublished - 2008
    Event17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008 - Kobe, Japan
    Duration: Oct 26 2008Oct 28 2008

    Other

    Other17th International Federation for Heat Treatment and Surface Engineering Congress 2008, IFHTSE 2008
    CountryJapan
    CityKobe
    Period10/26/0810/28/08

    All Science Journal Classification (ASJC) codes

    • Surfaces, Coatings and Films
    • Condensed Matter Physics
    • Mechanics of Materials

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