You are being redirected because this document is part of your ASTM Compass® subscription.
    This document is part of your ASTM Compass® subscription.

    If you are an ASTM Compass Subscriber and this document is part of your subscription, you can access it for free at ASTM Compass
    Volume 44, Issue 3 (July 2016)

    Evaluation of Austenite Phase in High-Carbon Steels by Ultrasonic Longitudinal Velocity

    (Received 13 December 2014; accepted 21 May 2015)

    Published Online: 13 July 2016

    CODEN: JTEVAB

      Format Pages Price  
    PDF (5.9M) 7 $25   ADD TO CART

    Cite this document

    X Add email address send
    X
      .RIS For RefWorks, EndNote, ProCite, Reference Manager, Zoteo, and many others.   .DOCX For Microsoft Word



    Abstract

    Retained austenite is a remnant product that may induce significant changes in mechanical properties of the steel. Consequently, accurate and economical measurement of retained austenite is very important. In this regard, specimens of AISI-440C and AISI-A2 steels were austenized at different temperatures ranging from 950°C to 1250°C and then air cooled. This led to major microstructural changes in these specimens. These changes were characterized by using x-ray diffraction techniques, optical and electron microscopy, Rockwell hardness testing, and ultrasonic flaw detectors. This study revealed that there is a good correlation exists between austenite phase and the longitudinal velocity. The magnitude of longitudinal velocity can be used to obtain reliable, quick, and quantitative determination of the volume percentage of the austenite phase present on production floor with relative ease, and less destructive, as compared to other methods.


    Author Information:

    Khan, S. H.
    Army Public College of Management and Sciences, Rawalpindi,

    Khan, A. Nusair
    Army Public College of Management and Sciences, Rawalpindi,


    Stock #: JTE20140504

    ISSN:0090-3973

    DOI: 10.1520/JTE20140504

    Author
    Title Evaluation of Austenite Phase in High-Carbon Steels by Ultrasonic Longitudinal Velocity
    Symposium ,
    Committee B07