Experimental technique for observation of three-dimensional metallography in brass and carbon steel

Mitsuhiro Okayasu, T. Ishikawa, M. Mizuno, T. Ono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the present study, an experimental technique is proposed by which the three-dimensional (3D) metallography (or crystals) can be observed on a fracture surface. The observation of the 3D metallography in brass and carbon steel has enabled their microstructural characteristics to be clarified. In brass, unique 3D lead crystal shapes were detected on the fracture surface with 'butterfly' and 'grass-like' shapes. On the other hand, grain boundaries and laminar shaped cementite were revealed in 3D for medium carbon steel. To obtain such 3D metallography, the samples were cooled to -196°C during the fracture process, produced by a compressive load. The essence of this approach was to embrittle the material, especially grain and crystal boundaries, during the fracture process. This helped to reveal the true shape of a variety of phases. Details of the mechanism for revealing the 3D metallography are discussed.

Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalMaterials Science and Technology
Volume24
Issue number5
DOIs
Publication statusPublished - May 2008
Externally publishedYes

Fingerprint

metallography
Metallography
brasses
carbon steels
Brass
Carbon steel
steels
Crystals
grain boundaries
crystals
cementite
grasses
Grain boundaries
brass

Keywords

  • Brass
  • Carbon steel
  • Crystal
  • Lead
  • Metallography
  • Microstructural characteristics
  • Three-dimension

ASJC Scopus subject areas

  • Materials Science(all)
  • Metals and Alloys

Cite this

Experimental technique for observation of three-dimensional metallography in brass and carbon steel. / Okayasu, Mitsuhiro; Ishikawa, T.; Mizuno, M.; Ono, T.

In: Materials Science and Technology, Vol. 24, No. 5, 05.2008, p. 547-552.

Research output: Contribution to journalArticle

@article{0c1657c6e471426b9a5361870d4c876a,
title = "Experimental technique for observation of three-dimensional metallography in brass and carbon steel",
abstract = "In the present study, an experimental technique is proposed by which the three-dimensional (3D) metallography (or crystals) can be observed on a fracture surface. The observation of the 3D metallography in brass and carbon steel has enabled their microstructural characteristics to be clarified. In brass, unique 3D lead crystal shapes were detected on the fracture surface with 'butterfly' and 'grass-like' shapes. On the other hand, grain boundaries and laminar shaped cementite were revealed in 3D for medium carbon steel. To obtain such 3D metallography, the samples were cooled to -196°C during the fracture process, produced by a compressive load. The essence of this approach was to embrittle the material, especially grain and crystal boundaries, during the fracture process. This helped to reveal the true shape of a variety of phases. Details of the mechanism for revealing the 3D metallography are discussed.",
keywords = "Brass, Carbon steel, Crystal, Lead, Metallography, Microstructural characteristics, Three-dimension",
author = "Mitsuhiro Okayasu and T. Ishikawa and M. Mizuno and T. Ono",
year = "2008",
month = "5",
doi = "10.1179/174328408X284496",
language = "English",
volume = "24",
pages = "547--552",
journal = "Materials Science and Technology",
issn = "0267-0836",
publisher = "Maney Publishing",
number = "5",

}

TY - JOUR

T1 - Experimental technique for observation of three-dimensional metallography in brass and carbon steel

AU - Okayasu, Mitsuhiro

AU - Ishikawa, T.

AU - Mizuno, M.

AU - Ono, T.

PY - 2008/5

Y1 - 2008/5

N2 - In the present study, an experimental technique is proposed by which the three-dimensional (3D) metallography (or crystals) can be observed on a fracture surface. The observation of the 3D metallography in brass and carbon steel has enabled their microstructural characteristics to be clarified. In brass, unique 3D lead crystal shapes were detected on the fracture surface with 'butterfly' and 'grass-like' shapes. On the other hand, grain boundaries and laminar shaped cementite were revealed in 3D for medium carbon steel. To obtain such 3D metallography, the samples were cooled to -196°C during the fracture process, produced by a compressive load. The essence of this approach was to embrittle the material, especially grain and crystal boundaries, during the fracture process. This helped to reveal the true shape of a variety of phases. Details of the mechanism for revealing the 3D metallography are discussed.

AB - In the present study, an experimental technique is proposed by which the three-dimensional (3D) metallography (or crystals) can be observed on a fracture surface. The observation of the 3D metallography in brass and carbon steel has enabled their microstructural characteristics to be clarified. In brass, unique 3D lead crystal shapes were detected on the fracture surface with 'butterfly' and 'grass-like' shapes. On the other hand, grain boundaries and laminar shaped cementite were revealed in 3D for medium carbon steel. To obtain such 3D metallography, the samples were cooled to -196°C during the fracture process, produced by a compressive load. The essence of this approach was to embrittle the material, especially grain and crystal boundaries, during the fracture process. This helped to reveal the true shape of a variety of phases. Details of the mechanism for revealing the 3D metallography are discussed.

KW - Brass

KW - Carbon steel

KW - Crystal

KW - Lead

KW - Metallography

KW - Microstructural characteristics

KW - Three-dimension

UR - http://www.scopus.com/inward/record.url?scp=45149086121&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=45149086121&partnerID=8YFLogxK

U2 - 10.1179/174328408X284496

DO - 10.1179/174328408X284496

M3 - Article

AN - SCOPUS:45149086121

VL - 24

SP - 547

EP - 552

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 5

ER -