发明授权
- 专利标题: Oxidation and wear resistant rhenium metal matrix composites
- 专利标题(中): 氧化和耐磨铼金属基复合材料
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申请号: US10138090申请日: 2002-05-03
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公开(公告)号: US06773663B2公开(公告)日: 2004-08-10
- 发明人: Robbie J. Adams
- 申请人: Robbie J. Adams
- 主分类号: C22C2800
- IPC分类号: C22C2800
摘要:
An alloy and metal matrix composite (MMC) based on a refractory metal such as rhenium resists oxidation by the inclusion of alloying substances with affinity for oxygen or other oxidizing substances. Rhenium enjoys excellent high temperature strength but oxidizes at a much lower temperature. This reduces its desirability for hot, stressed environments. The addition of substances, such as soluble metals, that attract oxygen may form a protective oxide layer over the remaining portion of the rhenium-alloy part or piece. Such soluble alloying constituents may include chromium, cobalt, nickel, titanium, thorium, aluminum, hafnium, vanadium, silicon, aluminum, and yttrium. The addition of second phase fiber or particulates such as carbides of silicon, tungsten, titanium and/or boron provides additional wear resistance in the formation of a resulting metal matrix composite (MMC).