The development of a cobalt-free exhaust valve seat insert

Hiroki Fujitsuka; Hideaki Kawata; Mitsushi Oyanagi; Tomonori Miyazawa; Akira Fujiki

doi:10.4271/2004-01-0502

The development of a cobalt-free exhaust valve seat insert

Hiroki Fujitsuka, Hideaki Kawata, Mitsushi Oyanagi, Tomonori Miyazawa, Akira Fujiki

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Generally, cobalt-contained sintered materials have mainly been applied for exhaust valve seat inserts (VSI). However, there is a trend to restrict the use of cobalt as well as lead environmental law, and cobalt is expensive. To solve these problems, a new exhaust VSI on the assumption of being cobalt and lead free, applicable for conventional engines, having good machinability, and with a reduced cost was developed. The new exhaust VSI is a material dispersed with two types of hard particles, Fe-Cr-C and Fe-Mo-Si, in the matrix of an Fe-3.5mass%Mo at the ratio of 15 mass % and 10 mass % respectively.

本文言語	English
ホスト出版物のタイトル	2004 SAE World Congress
出版社	SAE International
ISBN（印刷版）	0768013194, 9780768013191
DOI	https://doi.org/10.4271/2004-01-0502
出版ステータス	Published - 2004 1月 1
外部発表	はい
イベント	2004 SAE World Congress - Detroit, MI, United States 継続期間: 2004 3月 8 → 2004 3月 11

Conference

Conference	2004 SAE World Congress
国/地域	United States
City	Detroit, MI
Period	04/3/8 → 04/3/11

ASJC Scopus subject areas

自動車工学
安全性、リスク、信頼性、品質管理
汚染
産業および生産工学

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10.4271/2004-01-0502

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引用スタイル

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title = "The development of a cobalt-free exhaust valve seat insert",

abstract = "Generally, cobalt-contained sintered materials have mainly been applied for exhaust valve seat inserts (VSI). However, there is a trend to restrict the use of cobalt as well as lead environmental law, and cobalt is expensive. To solve these problems, a new exhaust VSI on the assumption of being cobalt and lead free, applicable for conventional engines, having good machinability, and with a reduced cost was developed. The new exhaust VSI is a material dispersed with two types of hard particles, Fe-Cr-C and Fe-Mo-Si, in the matrix of an Fe-3.5mass%Mo at the ratio of 15 mass % and 10 mass % respectively.",

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AU - Fujitsuka, Hiroki

AU - Kawata, Hideaki

AU - Oyanagi, Mitsushi

AU - Miyazawa, Tomonori

AU - Fujiki, Akira

PY - 2004/1/1

Y1 - 2004/1/1

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AB - Generally, cobalt-contained sintered materials have mainly been applied for exhaust valve seat inserts (VSI). However, there is a trend to restrict the use of cobalt as well as lead environmental law, and cobalt is expensive. To solve these problems, a new exhaust VSI on the assumption of being cobalt and lead free, applicable for conventional engines, having good machinability, and with a reduced cost was developed. The new exhaust VSI is a material dispersed with two types of hard particles, Fe-Cr-C and Fe-Mo-Si, in the matrix of an Fe-3.5mass%Mo at the ratio of 15 mass % and 10 mass % respectively.

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DO - 10.4271/2004-01-0502

M3 - Conference contribution

AN - SCOPUS:85072422278

SN - 0768013194

SN - 9780768013191

BT - 2004 SAE World Congress

PB - SAE International

T2 - 2004 SAE World Congress

Y2 - 8 March 2004 through 11 March 2004

ER -

The development of a cobalt-free exhaust valve seat insert

抄録

Conference

ASJC Scopus subject areas

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