Fracture Toughness Master Curve of bcc Steels

Tapio Planman, W.L. Server

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

    3 Citations (Scopus)


    The Master Curve methodology has been developed as an advanced, direct technique for characterizing the fracture toughness of ferritic structural steels. The application of the methodology has increased during the last decade and spread worldwide extending beyond the initial applications associated with nuclear power plant surveillance and integrity assessment programs. Today, the methodology is well acknowledged and increasingly accepted by regulators and safety authorities as a standardized method for application in integrity assessments. Methods based on conventional approaches, such as the Charpy V-notch test, are still widely used, and probably will be used in parallel into the foreseeable future. Once a sufficient amount of reference data have been measured using the Master Curve method, it will gain even further acceptance. Also, further understanding of the limits of applicability for different steels and different size/geometry test specimens will be obtained. The overall trend in fracture mechanics testing is toward characterization and methods which allow the use of small and/or moderate-size specimens simulating the true loading conditions and accounting for the expected micromechanisms of fracture. The Master Curve approach and its implementation into the ASTM E 1921 methodology have proven to be a valuable and powerful analysis tool for a wide variety of applications involving ferritic steels.
    Original languageEnglish
    Title of host publicationComprehensive nuclear materials
    Subtitle of host publicationRadiation Effects in Structural and Functional Materials for Fission and Fusion Reactors
    EditorsRudy J.M. Konings, Todd R. Allen, Roger E. Stoller, Shinsuke Yamanaka
    Place of PublicationAmsterdam
    ISBN (Print)978-0-08-056033-5
    Publication statusPublished - 2012
    MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material


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