Paper Title:
Microstructural Characterization of Eutectoid Steel Strips
  Abstract

Investigations of microstructural differences of tempered eutectoid steel strips are presented. The constituent phases – fine mixture of ferrite and cementite and a small amount of retained austenite – considerably affect the mechanical properties, especially the resistance to high cycle fatigue. The amount of retained austenite was determined by XRD and EBSD analysis. Thermoelectric power (TEP) measurements were performed for 270 different batches of C75S type eutectoid steel strips. TEP measurement shows characteristically the fine microstructural differences. The TEP of the investigated samples varied between 5650 and 7030 nV/°C. The amount of retained austenite can be significantly higher at the surface (20 %) than at the internal part (0-5 %). The sensitivity of XRD analysis was reduced because of the presence of coarse cementite particles. Using Cu anode, the measurements were more successful than in case of using Co anode. The EBSD analysis showed that also samples immeasurable with XRD contain retained austenite, but its detectability with XRD analysis declines with the coarsening of cementite.

  Info
Periodical
Edited by
P.J. Szabó, T. Réti, T. Czigány
Pages
13-18
DOI
10.4028/www.scientific.net/MSF.589.13
Citation
J. Dobránszky, "Microstructural Characterization of Eutectoid Steel Strips", Materials Science Forum, Vol. 589, pp. 13-18, 2008
Online since
June 2008
Export
Share

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

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

Authors: P. Bała, J. Krawczyk, Artur Hanc, Grzegorz Dercz
Abstract:This work presents the results of investigations using Mössbauer spectroscopy technique and XRD, and their interpretation concerning...
200
Authors: Jie Shi, Wen Quan Cao, Han Dong
Abstract:In this study a C-Mn High Strength Low Alloy steel (HSLAs) was processed by quenching and austenite reverted transformation during annealing...
238
Authors: Guo Bin Li, Zheng Zhi Zhao, Di Tang
Abstract:The microstructure evolution of 780 MPa hot dip galvanized dual-phase (DP) steel at heating stages of the annealing process was analyzed...
1331
Authors: Jin Ming Liu, Jie Liu, Guang Wei Fan, Dong Fang Du, Guo Ping Li, Cheng Jun Chai
A. Environment Related Materials and Photocatalysts
Abstract:Effect of solution treated temperature at 5001100°C on ferrite/austenite ratio and σ phase precipitation has been studied in this paper, and...
3
Authors: Li Hui Wang, Di Tang, Hai Tao Jiang, Ji Bin Liu, Yu Chen
Chapter 3: Steel and Iron Technology
Abstract:Effects of continuous annealing process on microstructure and properties of Si based cold-rolled TRIP Steel were studied. The results show...
472