Paper Title:
Mechanical and Thermal Properties of Ultra-High Carbon Steel Containing Aluminum
  Abstract

The properties of ultrahigh carbon steels (UHCS) are strongly influenced by aluminum additions. Hardness studies of quenched UHCS-Al alloys reveal that the temperature for the start of transformation increases with increases in aluminum content. It is shown that this change is a function of the atomic percent of solute and of the valence state when comparisons are made with UHCSs containing silicon and tin as solutes. The thermal expansion of UHCSs with dilute aluminum additions shows no discontinuity in the vicinity of the ferrite-austenite transformation temperature. This is the result of a three phase region of ferrite, carbides and austenite. The slope of the expansion curve is higher in the austenite range than in the ferrite range as a result of the dissolution of carbon in austenite with temperature. Processing to achieve a fine grain size in UHCS-Al alloys was principally by hot and warm working (HWW) followed by isothermal warm working (IWW). The high temperature mechanical properties of a UHCS-10Al-1.5C material show nearly Newtonian-viscous behavior at 900 to 10000C. Tensile elongations of 1200% without failure were achieved in the 1.5%C material. The high oxidation corrosion resistance of the UHCS-10Al materials is described.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
4844-4849
DOI
10.4028/www.scientific.net/MSF.539-543.4844
Citation
C.K. Syn, D.R. Lesuer, A. Goldberg, H.C. Tsai, O. D. Sherby, "Mechanical and Thermal Properties of Ultra-High Carbon Steel Containing Aluminum", Materials Science Forum, Vols. 539-543, pp. 4844-4849, 2007
Online since
March 2007
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: Klaus Hulka
Abstract:In the recent years several new high strength steel grades have been developed, which exhibit improved cold formability and thus are...
91
Authors: Masayuki Wakita, Yoshitaka Adachi, Yo Tomota
Abstract:This study aims at examining thermomechanical controlled process to realize ultrafine TRIP-aided multi-phase microstructures in low carbon...
4351
Authors: Ohjoon Kwon, Kyoo Young Lee, Gyo Sung Kim, Kwang Geun Chin
Abstract:The body design with light weight and enhanced safety is a key issue in the car industry. Corresponding to this trend, POSCO is developing...
136
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: 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