Iron-based sintered material and production method thereof

Details Iron-based sintered material and production method thereof Iron-based sintered material and production method thereof

2008-03-21

2011-10-18

King, Roy (Department: 1733)

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

C075S230000

Reexamination Certificate

active

08038761

ABSTRACT:
There is provided an iron-based sintered material resistant to the metal fatigue developing from the voids therein functioning as the initial points and improved in the strength and machinability thereof. An iron-based sintered material, including a mixed structure of martensite, bainite, and pearlite and multiple voids formed in the mixed structure, wherein the ratio of martensite and bainite in the mixed structure is 70% or more; the ratio of martensite and/or bainite in the mixed structure forming the void surface is 90% or more; and the density of the iron-based sintered material is 7.4 g/cm3or more.

REFERENCES:
patent: 4069044 (1978-01-01), Mocarski et al.
patent: 4348232 (1982-09-01), Hiraoka et al.
patent: 5188659 (1993-02-01), Purnell
patent: 5872322 (1999-02-01), Mocarski et al.
patent: 6660056 (2003-12-01), Hayashi et al.
patent: 2005/0163645 (2005-07-01), Xu et al.
patent: 2006/0182648 (2006-08-01), Xu et al.
patent: 2007/0089562 (2007-04-01), Unami et al.
patent: 2008/0193320 (2008-08-01), Engquist et al.
patent: 10-140285 (1998-05-01), None
patent: 2002-020847 (2002-01-01), None
patent: 2004-143482 (2004-05-01), None
patent: 2007-23318 (2007-02-01), None
patent: 2008-013818 (2008-01-01), None
patent: WO 2005/120749 (2005-12-01), None

Affiliated with

Also associated with

Rating

Iron-based sintered material and production method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Iron-based sintered material and production method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Iron-based sintered material and production method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4298585