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Join Us for an Exciting Webinar!

  • 1.  Join Us for an Exciting Webinar!

    Posted 05-31-2024 10:07
    Edited by Nicole Hale 05-31-2024 10:09

    We are thrilled to announce a special webinar on:

    "Residual Stress and Phase Transformation Predictions in Carburized AISI 9310 Gear Steel - Calibrating FEA Models Through Experiment"

    🗓️ Date: June 25, 2025
    🕒 Time: 11:00 AM - 12:00 PM Eastern Time
    🎤 Speaker: Dr. Lesley Frame

    🔗 Register now: https://register.gotowebinar.com/register/515192005906000223?source=connect


    The magnitude and depth of residual stresses in AISI 9310 gear steel are influenced by vacuum carburizing and subsequent heat treatments. These residual stresses can lead to part distortion during machining and potential premature failure. Understanding their development throughout heat treatment helps control the final stress state. Microstructure, mechanical, and thermal properties were assessed and compared to residual stress measurements (using the sin²ψ method). AISI 9310 steel samples underwent a typical gear manufacturing process: normalizing, vacuum carburizing to four case depths, austenitizing, oil quenching, cryo-treatment, and tempering. Results showed a partial correlation between residual stress state and case depth after each thermal step. Surface residual stresses depended on microstructural changes at each case depth during intermediate treatments, while final tempering had minimal impact on surface stress magnitude. The study's data were compared to finite element simulations (Abaqus and Dante Solutions) predicting residual stress distribution in similarly treated parts.


    Lesley Frame is an Asst. Prof. of Materials Science & Engineering, UTC Prof. of Innovation, and Director of the Center for Materials Processing Data at the U. of Connecticut. She earned her BS from MIT and her MS and PhD from the University of Arizona. Following her PhD, she held postdoc positions at The Arizona Research Institute for Solar Energy, Cardiff University, and the Rutherford Appleton Laboratory as a Fulbright Scholar. Dr. Frame then worked for five years at Thermatool, focusing on product development, materials characterization, technical training, and process improvement in the tube and pipe industry. Her research interests include materials processing-structure-property relationships, failure analysis in metals manufacturing, residual stress formation, corrosion, and transient materials properties. She is active in ASM International, a past President of the Heat-Treating Society, and Vice President of IFHTSE.

    Nicole Hale
    Director, Membership & Affiliates
    ASM International

    HTS Education courses