Invention Grant
US08349094B2 Dining and/or serving cutlery made of ferritic stainless steel with a martensitic boundary layer
有权
餐具和/或餐具由铁素体不锈钢制成，具有马氏体边界层
- Patent Title: Dining and/or serving cutlery made of ferritic stainless steel with a martensitic boundary layer
- Patent Title (中): 餐具和/或餐具由铁素体不锈钢制成，具有马氏体边界层
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Application No.: US12449233Application Date: 2008-01-29
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Publication No.: US08349094B2Publication Date: 2013-01-08
- Inventor: Cornelius Boerner , Guenter Buehlmaier , Wolfgang Friz , Alexander Kiefer , Martin Neumayer , Theda Staudinger
- Applicant: Cornelius Boerner , Guenter Buehlmaier , Wolfgang Friz , Alexander Kiefer , Martin Neumayer , Theda Staudinger
- Applicant Address: DE Geislingen/Steige
- Assignee: WMF Aktiengesellschaft
- Current Assignee: WMF Aktiengesellschaft
- Current Assignee Address: DE Geislingen/Steige
- Agency: Marshall & Melhorn, LLC
- Priority: EP07002295 20070202
- International Application: PCT/EP2008/000680 WO 20080129
- International Announcement: WO2008/092640 WO 20080807
- Main IPC: C22C38/18
- IPC: C22C38/18
Abstract:
The invention relates to dining and/or serving cutlery made of a steel material which is formed from a ferritic core with an essentially martensitic boundary layer. In the dining and/or serving cutlery of the invention, the surface hardness of the boundary layer, determined according to the hardness test according to Vickers HV 3, is thereby greater by 30 to 300% than the lowest hardness of the core, likewise measured according to Vickers HV 3.
Public/Granted literature
- US20100175269A1 DINING AND/OR SERVING CUTLERY MADE OF FERRITIC STAINLESS STEEL WITH A MARTENSITIC BOUNDARY LAYER Public/Granted day:2010-07-15
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