Invention Grant
- Patent Title: Heat-resistant iron-chromium-aluminum alloy with low chromium vaporization rate and elevated thermal stability
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Application No.: US14127990Application Date: 2012-06-06
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Publication No.: US10196721B2Publication Date: 2019-02-05
- Inventor: Heike Hattendorf , Bernd Kuhn , Thomas Eckardt , Tilmann Beck , Willem Quadakkers , Werner Theisen , Nilofar Nabiran
- Applicant: Heike Hattendorf , Bernd Kuhn , Thomas Eckardt , Tilmann Beck , Willem Quadakkers , Werner Theisen , Nilofar Nabiran
- Applicant Address: DE Werdohl
- Assignee: VDM Metals International GmbH
- Current Assignee: VDM Metals International GmbH
- Current Assignee Address: DE Werdohl
- Agency: Collard & Roe, P.C.
- Priority: DE102011111703 20110621; DE102012004488 20120306
- International Application: PCT/DE2012/000609 WO 20120606
- International Announcement: WO2012/175067 WO 20121227
- Main IPC: H01M8/0206
- IPC: H01M8/0206 ; C22C38/52 ; C22C38/00 ; C22C38/22 ; C22C38/26 ; H01M8/021 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/42 ; C22C38/44 ; C22C38/48 ; C22C38/50
Abstract:
An iron-chromium-aluminum alloy with improved heat resistance, low chromium vaporization rate and good processability, comprising (in % by mass), 2.0 to 4.5% Al, 12 to 25% Cr, 1.0 to 4% W, 0.25 to 2.0% Nb, 0.05 to 1.2% Si, 0.001 to 0.70% Mn, 0.001 to 0.030% C, 0.0001 to 0.05% Mg, 0.0001 to 0.03% Ca, 0.001 to 0.030% P, max. 0.03% N, max. 0.01% S, remainder iron and the usual melting-related impurities.
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