Three-Dimensional Approach to Observing Growth of Blocks and Packets in Fe-18Ni Maraging Steel

Shigekazu Morito; Show Yoshida; Rei Hayamizu; Taisuke Hayashi; Takuya Ohba; Hidenori Terasaki; Yuichi Komizo

doi:10.4028/www.scientific.net/MSF.783-786.916

Paper Titles

Temperature and Stress State Influence on Mechanical Properties and Damage Evolution of Dual-Phase Steels
p.886

Nucleation Rate and Number of Precipitates in V and Nb-Microalloyed Steels
p.892

Microstructures and Mechanical Properties of Stainless Steel AISI 316L Processed by Selective Laser Melting
p.898

Effects of Temperature and Strain Rate on Stress-Strain Relationship and Deformation Twinning in Fe-5%Si Alloy
p.910

Three-Dimensional Approach to Observing Growth of Blocks and Packets in Fe-18Ni Maraging Steel
p.916

Fretting Fatigue Behaviour of 12-Cr Steels and Strength Prediction
p.920

Effects of ALPS on Mechanical Property in Bainitic Steels
p.926

Effect of Cold Rolling and Isothermal Holding before Austenitization on Mechanical Properties in Steels
p.932

Development of Hot Rolling Schedules for Lean Alloyed Pipeline Steel X80 Produced on Continuous Mill 2000
p.938

HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Three-Dimensional Approach to Observing Growth of...

Three-Dimensional Approach to Observing Growth of Blocks and Packets in Fe-18Ni Maraging Steel

Abstract:

The present study aims to clarify the development of blocks and packets in lath martensite in Fe–18Ni maraging steel using three-dimensional observations. The specimens were step-quenched in order to clarify the sequential development of the three-dimensional morphology in a prior austenite grain. In a prior austenite grain, we found that five independent packets formed during the early stage of martensitic transformation. Four of the packets exist along the prior austenite grain boundaries and one packet grows from the boundary edge into the prior austenite grain. Each packet consists of a single block, although the fraction of martensitic transformation is 50.6%. The observed rules of the block-selection are as follows: (1) the blocks have near Kurdjumov–Sachs orientation relationship with adjacent austenite grains and elongated directions of the laths are parallel to adjacent grain boundaries and (2) transformation shear directions of the laths are parallel to adjacent grain boundaries.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

916-919

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.916

Citation:

Cite this paper

Online since:

May 2014

Authors:

Shigekazu Morito*, Show Yoshida, Rei Hayamizu, Taisuke Hayashi, Takuya Ohba, Hidenori Terasaki, Yuichi Komizo

Keywords:

Crystallography, Electron Backscatter Diffraction Analysis, Lath Martensite, Morpholoy, Steel, Three-Dimensional Observation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] S. Morito, H. Tanaka, R. Konishi, T. Furuhara, T. Maki: Acta Mater., 51 (2003) 1789–1799.

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

Google Scholar

[2] S. Morito, J. Nishikawa, T. Ohba, T. Furuhara, T. Maki: G.B. Olson, D.S. Liberman, A. Saxena (Eds. ), Proc. of ICOMAT 2008, TMS, Warrendale, PA, (2009), p.649–653.

DOI: 10.1002/9781118803592.ch98

Google Scholar

[3] A.B. Greninger, A.R. Troiano: Trans. ASM, 28 (1940) 537–562.

Google Scholar

[4] J.R. Kremer, D.N. Mastronarde, J.R. McIntosh: J. Struct. Biol., 116 (1996) 71–76.

Google Scholar

[5] N. Takayama, G. Miyamoto, T. Furuhara: Acta Mater., 60 (2012) 2387–2396.

Google Scholar

[6] S. Morito, R. Igarashi, K. Kamiya, T. Ohba, T. Maki: Mater. Sci. Forum, 638–642 (2009) 1459–1463.

DOI: 10.4028/www.scientific.net/msf.638-642.1459

Google Scholar

[7] S. Zhang, S. Morito, Y. Komizo: ISIJ Int., 52 (2012) 510–515.

Google Scholar