Paper Title:
Simulation of Thermo-Mechanical Controlled Rolling and Continuous Cooling of Wire Rods
  Abstract

In this study the effect of thermo-mechanical controlled rolling and continuous cooling of different grades of steel wire rod (e.g. high-carbon for cold drawing applications, medium-carbon micro-alloyed for cold forming) has been analysed through the application of a set of integrated mathematical models simulating hot rolling and continuous cooling, and a laboratory work involving hot rolling simulation on a pilot plant and heat treatments on a laboratory scale. The samples have been characterised by means of instrumented tensile tests, metallographic analyses including determination of pearlite interlamellar spacing, and controlled compression tests. The results show that: - The mechanical strength of high-carbon steel is essentially related to interlamellar pearlite spacing, and can be enhanced through the control of continuous cooling. Improvements in cold drawability can be obtained by means of prior austenitic grain size (PAGS) reduction, through the application of thermo-mechanically controlled hot deformation processes. - In the case of medium-carbon micro-alloyed steels for cold forming, the reduced PAGS achieved by means of thermo-mechanically controlled process reflects on a closer control of as-rolled mechanical properties, avoiding hardness hot spots asking for annealing treatments before cold forming. Moreover, the finer ferrite grain size could affect the forces needed during forming at the same deformation level.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
3236-3241
DOI
10.4028/www.scientific.net/MSF.638-642.3236
Citation
C. Guarnaschelli, P. Folgarait, S. Matera, D. Ripamonti, "Simulation of Thermo-Mechanical Controlled Rolling and Continuous Cooling of Wire Rods", Materials Science Forum, Vols. 638-642, pp. 3236-3241, 2010
Online since
January 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhen Tao Yu, Lian Zhou, Lijuan Luo, Maohong Fan, Yanyan Fu
Abstract:The effects of alloying elements such as Mo, Sn, Zr, Nb, deforming-rate, solid solution and aging treatment on mechanical property and...
595
Authors: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: Young Seok Song, M.R. Lee, Jeong Tae Kim
Abstract:Alloy 718 ingot with a diameter of 400mm was made by the vacuum melting process ; VIM followed by VAR. Compression tests were conducted on...
3124
Authors: Xin Min Tang, Xian Liang Zhou, Yong Jin Tang, Jian Wu Yan
Abstract:In this paper, using high tensile strength and yield strength of hot-rolling acid washing thin steel sheet instead of cold-rolling steel...
41
Authors: Sourav Das, Saurabh Kundu, Arunansu Haldar
Chapter 6: Materials
Abstract:Bainitic steels, which are transformed at very low temperatures, offer an excellent combination of strength and ductility where the strength...
939