Invention Grant
- Patent Title: Iron-based sintered powder metal for wear resistant applications
- Patent Title (中): 用于耐磨应用的铁基烧结粉末金属
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Application No.: US12579772Application Date: 2009-10-15
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Publication No.: US08257462B2Publication Date: 2012-09-04
- Inventor: Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
- Applicant: Denis Boyd Christopherson, Jr. , Leslie John Farthing , Jeremy Raymond Koth
- Applicant Address: US MI Southfield
- Assignee: Federal-Mogul Corporation
- Current Assignee: Federal-Mogul Corporation
- Current Assignee Address: US MI Southfield
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Main IPC: B22F1/00
- IPC: B22F1/00 ; B22F9/00 ; C22C33/02

Abstract:
A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
Public/Granted literature
- US20110091344A1 IRON-BASED SINTERED POWDER METAL FOR WEAR RESISTANT APPLICATIONS Public/Granted day:2011-04-21
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