Affiliation:
1. University of Science and Technology Liaoning
Abstract
We presented the comparative influence of two different grain size on bake hardenability for low carbon steel dependent internal friction (IF) spectra. Samples that had a ferrite structure consisting of two peaks and a linear background. Analyzed the grain size and grain boundary length of low carbon steel by EBSD technique. The results showed that: the grain refinement increased the number of initial solute carbon atoms and the effect of movable dislocations pinning by carbon. So grain refinement of low carbon steel could enhance its bake hardening properties.
Publisher
Trans Tech Publications, Ltd.
Reference12 articles.
1. John G, Speer,K. Matlock, Recent developments in Low-Carbon sheet steels, J. JOM. 54, (2002)1543-1851.
2. JiangHaitao, KangYonglin, YuHao, Research progress and development of bake hardening steel sheet for automobile, J. Automobile technology and material. Issue3 (2005)1-7.
3. H. Alihosseine, K. Dehghani, Bake hardening of ultra-fine grained low carbon steel produced by constrained groove pressing, J. Materials Science and Engineering. A549 (2012)157-162.
4. B. Soenen, A.K. De, S. Vandeputte, etal, Competition between grain boundary segregation and Cottrell atmosphere formation during static aging in ultra-low carbon bake hardening steels, J. Acta Materialia. 52 (2004)3483-3492.
5. M. Weller, The Snoek relaxation in bcc metals-From steel wire to meteorites, J. Materials Science and Engineering A. 442, (2006)21-30.