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 8, Issue 2 (March 2019)

    Special Issue Paper

    Distortion Prediction in Quenching Seamless Pipes of Low-Carbon Steel

    (Received 31 January 2018; accepted 18 May 2018)

    Published Online: 01 October 2018

    CODEN: MPCACD

      Format Pages Price  
    PDF (613.11 KB) 11 $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

    Quenching is an important pipe production step that can also be responsible for geometric distortions in steel parts, depending on cooling heterogeneities, thermal contractions, and changes in the steel microstructure. The quenching stage generally leads to an increase in the outside diameter (OD) of the pipes, and the prediction of the final size becomes key to assuring the quality and dimensional requirements of the product. The objective of this study was to apply simulations based on the finite element method (FEM) to water quenching in tanks to estimate the final OD of a seamless low-carbon steel pipe. This work is a first approach to developing a methodology for predicting quenched pipe distortion that depends on the process parameters used during quenching, e.g., internal and external water jets. In the available scientific literature, there are some approaches to the problem, but a consistent approach was not found, especially concerning the experimental validation of the simulation results, which is always a challenge under industrial conditions. The present research was developed in three stages: temperature measurement at several points of the pipe during the quenching process, heat transfer coefficient (HTC) calculation, and distortion calculation. The first stage was performed on an industrial scale to determine the pipe temperature distribution. Afterwards, a finite element (FE) model was set to conduct the second and third stages. The former covered the HTC prediction for inner and outer pipe surfaces using inverse analysis. Pipe distortions were predicted while taking phase transformations and deformations into account. Finally, experimental temperature profiles during heat treatment were used to predict the HTC and OD growth in the low-carbon pipes. The results of the simulations were compared with the industrial data of a quenched pipe in order to validate the methodology that was used.

    Author Information:

    Dores, A. C. L.
    Heat Treatment Technology Department, Minas Gerais,

    Cetlin, P. R.
    School of Engineering, Federal University of Minas Gerais, Minas Gerais,

    da Silva, A. D.
    School of Engineering, Federal University of Minas Gerais, Minas Gerais,

    6Pro Virtual & Practical Process, Minas Gerais,

    Stemler, P. M. A.
    6Pro Virtual & Practical Process, Minas Gerais,

    Soares, L. N.
    Thermal Processes Technology Department, Minas Gerais,

    Machado, L.
    School of Engineering, Federal University of Minas Gerais, Minas Gerais,


    Stock #: MPC20180020

    ISSN:2379-1365

    DOI: 10.1520/MPC20180020

    Author
    Title Distortion Prediction in Quenching Seamless Pipes of Low-Carbon Steel
    Symposium ,
    Committee A01