The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2017
Filed:
Apr. 04, 2014
Akihito Ninomiya, Saitama, JP;
Yoshinari Okada, Saitama, JP;
Takahiro Miyazaki, Aichi, JP;
Yasushi Matsumura, Aichi, JP;
Shinichiro Kato, Aichi, JP;
Tetsuya Shimomura, Aichi, JP;
Akihito Ninomiya, Saitama, JP;
Yoshinari Okada, Saitama, JP;
Takahiro Miyazaki, Aichi, JP;
Yasushi Matsumura, Aichi, JP;
Shinichiro Kato, Aichi, JP;
Tetsuya Shimomura, Aichi, JP;
Katsuya Yamaguchi, Aichi, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
DAIDO STEEL CO., LTD., Aichi, JP;
Abstract
The invention provides a carburized part which has excellent medium-cycle fatigue strength in particular subjected to surface-hardening treatment by carburization. The invention provides a carburized part including a carburized layer formed by performing carburizing treatment to a steel, the steel including, in terms of % by mass: 0.15% to 0.25% of C, 0.15% or less of Si, 0.4% to 1.1% of Mn, 0.8% to 1.4% of Cr, 0.25% to 0.55% of Mo, 0.015% or less of P, and 0.035% or less of S, with the remainder being Fe and unavoidable impurities, and the steel satisfying the following relation; 0.10≦[Mo]/(10[Si]+[Mn]+[Cr])≦0.40, in which [M] represents a content of element M in terms of % by mass.