Paper Titles
A Novel Laser Powered Heating Stage for In Situ Investigations in a SEM
p.909
Three-Dimensional Microstructure Reconstruction Using FIB-OIM
p.915
Grain-Boundary Structure and Phase-Transformation Mechanism in Yttria-Stabilized Tetragonal Zirconia Polycrystal
p.921
Mechanically Driven Migration of <100> Tilt Grain Boundaries in Al-Bicrystals
p.927
Comparison of Deformation Structure of Lath Martensite in Low Carbon and Ultra-Low Carbon Steels
p.933
Direct Measurement of Titanium Pipe Diffusion Coefficients in Sapphire
p.939
In Situ Time-Resolved X-Ray Diffraction Investigation of the ω→ψ Transition in Al-Cu-Fe Quasicrystal-Forming Alloys
p.943
Faceting of Σ3 Grain Boundaries in Al
p.949
Atomic-Scale Processes of Grain-Boundary Faceting in a Zirconia Bicrystal
p.955

Comparison of Deformation Structure of Lath Martensite in Low Carbon and Ultra-Low Carbon Steels

Article Preview

Abstract:

The microstructural development of cold-rolled lath martensite structure in the low carbon steels and ultra-low carbon steels are studied and compared. In low carbon steel of as-quenched specimens, very thin austenite films exist at boundaries of adjacent laths, but do not exist in ultra-low carbon steel. After cold rolling for the low carbon steel, the lamellar dislocation cells, irregularly bent laths and kinked laths regions are frequently observed and, in some instances, the disappearance of initial lath boundaries is observed. The existence of retained austenite films suggests that the lath boundaries rarely disappear during cold-rolling in the low carbon steel.

You might also be interested in these eBooks
Recrystallization and Grain Growth III View Preview

Info:

Periodical:

Materials Science Forum (Volumes 558-559)

Pages:

933-938

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.558-559.933

Citation:

Cite this paper

Online since:

October 2007

Authors:

S. Morito, T. Ohba, Tadashi Maki

Keywords:

Cold Rolling, Deformation Structure, Lath Martensite, Low Carbon Steel

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2007 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] S. Takaki, S. Iizuka, K. Tomimura and Y. Tokunaga: Mater. Trans. JIM, 33 (1992) 577-584.

DOI: 10.2320/matertrans1989.33.577

Google Scholar

[2] R. Ueji, N. Tsuji, Y. Minamino and Y. Koizumi: Acta Mater., 50 (2002) 4177.

Google Scholar

[3] S. Morito, S. Iwamoto and T. Maki: Int. Forum for the Properties and Application of IF Steels 2003 (2003) 365-368.

Google Scholar

[4] S. Morito, X. Huang, T. Furuhara, T. Maki and N. Hansen: The 25th Risø International Symposium on Materials Science(2004) 453-458.

Google Scholar

[5] R. Ueji, N. Tsuji, Y. Minamino and Y. Koizumi, Sci. Techn. Adv. Mater., 5(2004) 153.

Google Scholar

[6] B.L. Li, A. Godfrey, Q.C. Meng, Q. Liu and N. Hansen, Acta Mater., 52 (2004) 1069-1081.

Google Scholar

[7] S. Morito, H. Tanaka, R. Konishi T. Furuhara and T. Maki, Acta Mater., 51 (2003), 1789-1799.

DOI: 10.1016/s1359-6454(02)00577-3

Google Scholar

[8] K. Nakashima, Y. Futamura, T. Tsuchiyama, S. Takaki and Y. Fujimura, CAMP-ISIJ, 18(2005) 1541. Fig. 11 Relationship between Vickers hardness and rolling reduction of specimens.

Google Scholar