Similar Tendency to Strain-Induced Martensite Transformation in Different Austenitic Stainless Steels

    Volume 2, Issue 1

    ISSN: 2165-3992

    CODEN: MPCOAD

    Published Online: 5 July 2013

    Page Count: 8


    Surkialiabad, Roohallah
    Engineering Faculty, Ferdowsi Univ. of Mashhad, Mashhad,

    Hedayati, Ali
    Dept. of Materials Engineering, Isfahan Univ. of Technology, Isfahan,

    (Received 20 November 2012; accepted 8 March 2013)

    Abstract

    The formation of strain-induced martensite in metastable austenitic stainless steels depends on many parameters; the most well known and highly investigated of these is temperature. In this work, we suggest a new relationship between Md30/50, deformation temperature (DT), and martensite content based on data gathered from other studies and our experimental findings. For this purpose we rolled an AISI 304L stainless steel in different strains at 25°C, 0°C, and −15°C; then we characterized the steel via x-ray diffraction and Ferritescope studies to identify different phases and calculate their contents. According to the results, the relationship is as follows: If the delta value (DT − Md30/50) is the same for different austenitic stainless steels, they will form equal amounts of martensite under similar strain conditions. Moreover, both the delta value and the true strain have a strong effect on the formation of martensite.


    Paper ID: MPC20120044

    DOI: 10.1520/MPC20120044

    ASTM International is a member of CrossRef.

    Author
    Title Similar Tendency to Strain-Induced Martensite Transformation in Different Austenitic Stainless Steels
    Symposium , 0000-00-00
    Committee A01