Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique

T. Ohmura; K. Tsuzaki

doi:10.4028/0-87849-960-1.4113

Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique

T. Ohmura, K. Tsuzaki

Strength of materials

Research output: Contribution to journal › Conference article › peer-review

6 Citations (Scopus)

Abstract

Nanoindentation measurements were performed for Fe-C based martensitic steels, and then the strengthening factors such as grain boundary effect were evaluated. Nanohardness of the matrix of the martensite is lower than that expected from macroscopic hardness, indicating that the grain boundary effect is significant for the macroscopic strength of the Fe-C martensite. A remarkable decrease of the grain boundary effect was found at the tempering temperature of 673 K, which is due to a disappearance of film-like carbides on grain boundaries. These results will be discussed in light of the interpretations of grain boundary strengthening.

Original language	English
Pages (from-to)	4113-4116
Number of pages	4
Journal	Materials Science Forum
Volume	475-479
Issue number	V
DOIs	https://doi.org/10.4028/0-87849-960-1.4113
Publication status	Published - Jan 1 2005
Event	PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: Nov 2 2004 → Nov 5 2004

All Science Journal Classification (ASJC) codes

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

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title = "Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique",

abstract = "Nanoindentation measurements were performed for Fe-C based martensitic steels, and then the strengthening factors such as grain boundary effect were evaluated. Nanohardness of the matrix of the martensite is lower than that expected from macroscopic hardness, indicating that the grain boundary effect is significant for the macroscopic strength of the Fe-C martensite. A remarkable decrease of the grain boundary effect was found at the tempering temperature of 673 K, which is due to a disappearance of film-like carbides on grain boundaries. These results will be discussed in light of the interpretations of grain boundary strengthening.",

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T1 - Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique

AU - Ohmura, T.

AU - Tsuzaki, K.

PY - 2005/1/1

Y1 - 2005/1/1

N2 - Nanoindentation measurements were performed for Fe-C based martensitic steels, and then the strengthening factors such as grain boundary effect were evaluated. Nanohardness of the matrix of the martensite is lower than that expected from macroscopic hardness, indicating that the grain boundary effect is significant for the macroscopic strength of the Fe-C martensite. A remarkable decrease of the grain boundary effect was found at the tempering temperature of 673 K, which is due to a disappearance of film-like carbides on grain boundaries. These results will be discussed in light of the interpretations of grain boundary strengthening.

AB - Nanoindentation measurements were performed for Fe-C based martensitic steels, and then the strengthening factors such as grain boundary effect were evaluated. Nanohardness of the matrix of the martensite is lower than that expected from macroscopic hardness, indicating that the grain boundary effect is significant for the macroscopic strength of the Fe-C martensite. A remarkable decrease of the grain boundary effect was found at the tempering temperature of 673 K, which is due to a disappearance of film-like carbides on grain boundaries. These results will be discussed in light of the interpretations of grain boundary strengthening.

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DO - 10.4028/0-87849-960-1.4113

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AN - SCOPUS:17044439116

VL - 475-479

SP - 4113

EP - 4116

JO - Materials Science Forum

JF - Materials Science Forum

SN - 0255-5476

IS - V

T2 - PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing

Y2 - 2 November 2004 through 5 November 2004

ER -

Evaluation of grain boundary effect on the strength of Fe-C martensltic steels through nanoindentation technique

Abstract

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