Paper Title:
Topological Analysis of Martensite Morphology in Dual-Phase Steels
  Abstract

Martensite morphology such as connectivity or dispersivity in ferrite (F)/martensite (M) dual-phase (DP) steels was investigated from topological viewpoint to reveal the effect of the martensite morphology on the mechanical properties. Topological analysis permits evaluation of the microstructural connectivity and dispersivity by measuring the number of handles, independent bodies and genus, etc. The topological analysis was performed on three-dimensional (3D) reconstructed images of the microstructure with different connectivity, dispersivity, volume fraction and hardness of martensite in DP steels that were prepared by changing the intercritical annealing temperature. The connectivity and the volume fraction of martensite increased while the dispersivity and hardness of it decreased with increasing annealing temperature. The effect of connectivity and dispersivity as well as volume fraction and hardness, in particular, on work hardening behavior was individually evaluated at a given strain.

  Info
Periodical
Chapter
Chapter 16: Steels
Edited by
T. Chandra, M. Ionescu and D. Mantovani
Pages
725-729
DOI
10.4028/www.scientific.net/AMR.409.725
Citation
N. Sato, M. Ojima, S. Morooka, Y. Tomota, Y. Adachi, "Topological Analysis of Martensite Morphology in Dual-Phase Steels", Advanced Materials Research, Vol 409, pp. 725-729, Nov. 2011
Online since
November 2011
Price
US$ 28,-
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