Volume 3, Issue 1

    Estimation of ASTM E1921 Master Curve of Ferritic Steels From Instrumented Impact Test of CVN Specimens Without Precracking

    (Received 21 October 2013; accepted 14 May 2014)

    Published Online: 2014

    CODEN: MPCOAD

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    Abstract

    A semi-empirical cleavage fracture stress (CFS) model, mainly depending on the CFS, σf, has been derived for estimating the ASTM E1921 reference temperature (T0) and demonstrated for ferritic steels with yield strength in the range 400–750 MPa. This requires only instrumented impact test of CVN specimens without precracking and static yield stress data. The T0 estimate based on the CFS model, TQcfs, lies within a ±20°C band, being conservative for most of the steels, but less conservative than TQIGC based on the IGC-procedure (see Nomenclature for definition). Applicability and acceptability of the present calibration curves for highly irradiated steels need further examination.


    Author Information:

    Sreenivasan, P. R.
    Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Resaearch, Kalpakkam, Tamilnadu


    Stock #: MPC20130079

    ISSN: 2165-3992

    DOI: 10.1520/MPC20130079

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    Author
    Title Estimation of ASTM E1921 Master Curve of Ferritic Steels From Instrumented Impact Test of CVN Specimens Without Precracking
    Symposium , 0000-00-00
    Committee E08