The Sintering Phenomena and Heat-Treated Properties of Carbides and Borides Precipitated P/M Alloys Made of H.S.S. Powder

Akira Fujiki; Yoshihiro Maki; Makoto Kanou; Ichirō Tanimoto

doi:10.2497/jjspm.35.118

The Sintering Phenomena and Heat-Treated Properties of Carbides and Borides Precipitated P/M Alloys Made of H.S.S. Powder

Akira Fujiki, Yoshihiro Maki, Makoto Kanou, Ichirō Tanimoto

Research output: Contribution to journal › Article › peer-review

Abstract

The sintering phenomena of mixtures of high speed steel powder and boron containing ferrous alloy powders were studied to obtain carbides and borides precipitated wear resisting P/M alloys. Moreover, the properties of these alloys after heat treatment were also examined. AISI M7 and carbon reduced M7 (0.5%C) powders were selected, and Fe-B and Fe-Cr-B powders were used as additive powder. The results obtained were summarized as follows: (1) Fe-B alloy powder was better than Fe-Cr-B powder as the boron containing additive powder. (2) In order to get good mechanical properties, boron content of mixture was to be determined as (Mo at% +W at%)/B at%=1.0. (3) Carbon content of H.S.S. should be reduced from standard value to make carbides and borides coprecipitate.

Original language	English
Pages (from-to)	118-124
Number of pages	7
Journal	Journal of the Japan Society of Powder and Powder Metallurgy
Volume	35
Issue number	3
DOIs	https://doi.org/10.2497/jjspm.35.118
Publication status	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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title = "The Sintering Phenomena and Heat-Treated Properties of Carbides and Borides Precipitated P/M Alloys Made of H.S.S. Powder",

abstract = "The sintering phenomena of mixtures of high speed steel powder and boron containing ferrous alloy powders were studied to obtain carbides and borides precipitated wear resisting P/M alloys. Moreover, the properties of these alloys after heat treatment were also examined. AISI M7 and carbon reduced M7 (0.5%C) powders were selected, and Fe-B and Fe-Cr-B powders were used as additive powder. The results obtained were summarized as follows: (1) Fe-B alloy powder was better than Fe-Cr-B powder as the boron containing additive powder. (2) In order to get good mechanical properties, boron content of mixture was to be determined as (Mo at% +W at%)/B at%=1.0. (3) Carbon content of H.S.S. should be reduced from standard value to make carbides and borides coprecipitate.",

author = "Akira Fujiki and Yoshihiro Maki and Makoto Kanou and Ichirō Tanimoto",

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doi = "10.2497/jjspm.35.118",

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AU - Maki, Yoshihiro

AU - Kanou, Makoto

AU - Tanimoto, Ichirō

PY - 1988

Y1 - 1988

N2 - The sintering phenomena of mixtures of high speed steel powder and boron containing ferrous alloy powders were studied to obtain carbides and borides precipitated wear resisting P/M alloys. Moreover, the properties of these alloys after heat treatment were also examined. AISI M7 and carbon reduced M7 (0.5%C) powders were selected, and Fe-B and Fe-Cr-B powders were used as additive powder. The results obtained were summarized as follows: (1) Fe-B alloy powder was better than Fe-Cr-B powder as the boron containing additive powder. (2) In order to get good mechanical properties, boron content of mixture was to be determined as (Mo at% +W at%)/B at%=1.0. (3) Carbon content of H.S.S. should be reduced from standard value to make carbides and borides coprecipitate.

AB - The sintering phenomena of mixtures of high speed steel powder and boron containing ferrous alloy powders were studied to obtain carbides and borides precipitated wear resisting P/M alloys. Moreover, the properties of these alloys after heat treatment were also examined. AISI M7 and carbon reduced M7 (0.5%C) powders were selected, and Fe-B and Fe-Cr-B powders were used as additive powder. The results obtained were summarized as follows: (1) Fe-B alloy powder was better than Fe-Cr-B powder as the boron containing additive powder. (2) In order to get good mechanical properties, boron content of mixture was to be determined as (Mo at% +W at%)/B at%=1.0. (3) Carbon content of H.S.S. should be reduced from standard value to make carbides and borides coprecipitate.

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The Sintering Phenomena and Heat-Treated Properties of Carbides and Borides Precipitated P/M Alloys Made of H.S.S. Powder

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