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Precipitation Hardening in Fe-1.03%Cu Structural Steel

Journal Materials Science Forum (Volumes 561 - 565)
Volume PRICM 6
Edited by Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages 111-114
DOI 10.4028/www.scientific.net/MSF.561-565.111
Citation Hui Ping Ren et al., 2007, Materials Science Forum, 561-565, 111
Online since October, 2007
Authors Hui Ping Ren, Hai Yan Wang, Zong Chang Liu, Lin Chen
Keywords Copper Precipitation, Microstructure, Precipitation Hardening, Steel, TEM
Abstract

The precipitation of copper during aging at 650oC within ferrite in high-purity Fe-1.03wt%Cu steel was examined by transmission electron microscopy, and the influence of precipitation particles on property of experimental steel was investigated. The microstructure and the corresponding diffraction patterns of different zone axis were analyzed. Nano-scale copper-rich clusters with B2-like structure and high density dislocation around precipitate was observed during either solution treatment or aging. Nano-scale metastable precipitates and high density around them were found to play the most important role for increasing steel strength.

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