Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy

T. Ohmura, A. Minor, K. Tsuzaki, J. W. Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Deformation behavior in the vicinity of grain boundary in Fe-0.4wt%C tempered martensitic steel were studied through in-situ nanoindentation in a TEM. Two types of boundaries were imaged in the dislocated martensitic structure: a low-angle lath boundary and a high-angle block boundary. In the case of a low-angle grain boundary, the dislocations induced by the indenter piled up against the boundary. As the indenter penetrated further, a critical stress appears to have been reached and a high density of dislocations was suddenly emitted on the far side of the grain boundary into the adjacent grain. In the case of the high-angle grain boundary, the numerous dislocations that were produced by the indentation were simply absorbed into the boundary, with no indication of pile-up or the transmission of strain.

Original languageEnglish
Title of host publicationNanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation
Pages239-244
Number of pages6
Publication statusPublished - Dec 1 2006
Externally publishedYes
Event3rd International Conference on Nanomaterials by Severe Plastics Deformation, NanoSPD3 - Fukuoka, Japan
Duration: Sep 22 2005Sep 26 2005

Publication series

NameMaterials Science Forum
Volume503-504
ISSN (Print)0255-5476

Other

Other3rd International Conference on Nanomaterials by Severe Plastics Deformation, NanoSPD3
CountryJapan
CityFukuoka
Period9/22/059/26/05

Fingerprint

Martensitic steel
Nanoindentation
Indentation
Grain boundaries
Transmission electron microscopy
Dislocations (crystals)
Piles
Carbon steel

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Ohmura, T., Minor, A., Tsuzaki, K., & Morris, J. W. (2006). Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy. In Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation (pp. 239-244). (Materials Science Forum; Vol. 503-504).

Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy. / Ohmura, T.; Minor, A.; Tsuzaki, K.; Morris, J. W.

Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation. 2006. p. 239-244 (Materials Science Forum; Vol. 503-504).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ohmura, T, Minor, A, Tsuzaki, K & Morris, JW 2006, Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy. in Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation. Materials Science Forum, vol. 503-504, pp. 239-244, 3rd International Conference on Nanomaterials by Severe Plastics Deformation, NanoSPD3, Fukuoka, Japan, 9/22/05.
Ohmura T, Minor A, Tsuzaki K, Morris JW. Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy. In Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation. 2006. p. 239-244. (Materials Science Forum).
Ohmura, T. ; Minor, A. ; Tsuzaki, K. ; Morris, J. W. / Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy. Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation. 2006. pp. 239-244 (Materials Science Forum).
@inproceedings{18c022139fd54209ac6446c4aa81873b,
title = "Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy",
abstract = "Deformation behavior in the vicinity of grain boundary in Fe-0.4wt{\%}C tempered martensitic steel were studied through in-situ nanoindentation in a TEM. Two types of boundaries were imaged in the dislocated martensitic structure: a low-angle lath boundary and a high-angle block boundary. In the case of a low-angle grain boundary, the dislocations induced by the indenter piled up against the boundary. As the indenter penetrated further, a critical stress appears to have been reached and a high density of dislocations was suddenly emitted on the far side of the grain boundary into the adjacent grain. In the case of the high-angle grain boundary, the numerous dislocations that were produced by the indentation were simply absorbed into the boundary, with no indication of pile-up or the transmission of strain.",
author = "T. Ohmura and A. Minor and K. Tsuzaki and Morris, {J. W.}",
year = "2006",
month = "12",
day = "1",
language = "English",
isbn = "0878499857",
series = "Materials Science Forum",
pages = "239--244",
booktitle = "Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation",

}

TY - GEN

T1 - Indentation-induced deformation behavior in martensitic steel observed through in-situ nanoindentation in a transmission electron microscopy

AU - Ohmura, T.

AU - Minor, A.

AU - Tsuzaki, K.

AU - Morris, J. W.

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Deformation behavior in the vicinity of grain boundary in Fe-0.4wt%C tempered martensitic steel were studied through in-situ nanoindentation in a TEM. Two types of boundaries were imaged in the dislocated martensitic structure: a low-angle lath boundary and a high-angle block boundary. In the case of a low-angle grain boundary, the dislocations induced by the indenter piled up against the boundary. As the indenter penetrated further, a critical stress appears to have been reached and a high density of dislocations was suddenly emitted on the far side of the grain boundary into the adjacent grain. In the case of the high-angle grain boundary, the numerous dislocations that were produced by the indentation were simply absorbed into the boundary, with no indication of pile-up or the transmission of strain.

AB - Deformation behavior in the vicinity of grain boundary in Fe-0.4wt%C tempered martensitic steel were studied through in-situ nanoindentation in a TEM. Two types of boundaries were imaged in the dislocated martensitic structure: a low-angle lath boundary and a high-angle block boundary. In the case of a low-angle grain boundary, the dislocations induced by the indenter piled up against the boundary. As the indenter penetrated further, a critical stress appears to have been reached and a high density of dislocations was suddenly emitted on the far side of the grain boundary into the adjacent grain. In the case of the high-angle grain boundary, the numerous dislocations that were produced by the indentation were simply absorbed into the boundary, with no indication of pile-up or the transmission of strain.

UR - http://www.scopus.com/inward/record.url?scp=35248862010&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35248862010&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:35248862010

SN - 0878499857

SN - 9780878499854

T3 - Materials Science Forum

SP - 239

EP - 244

BT - Nanomaterials by Severe Plastic Deformation, NanoSPD3 - Proceedings of the 3rd International Conference on Nanomaterials by Severe Plastics Deformation

ER -