发明授权
- 专利标题： Lithium loss suppression in alloys using hydrogen atmosphere
- 专利标题（中）： 使用氢气的合金中的锂损失抑制
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申请号： US583313申请日： 1990-09-17
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公开(公告)号： US5154778A公开(公告)日： 1992-10-13
- 发明人: John M. Papazian , Robert L. Schulte , Philip N. Adler
- 申请人： John M. Papazian , Robert L. Schulte , Philip N. Adler
- 申请人地址： NY Bethpage
- 专利权人： Grumman Aerospace Corporation
- 当前专利权人： Grumman Aerospace Corporation
- 当前专利权人地址： NY Bethpage
- 主分类号： C22F1/02
- IPC分类号： C22F1/02
摘要：
The invention utilizes a hydrogen atmosphere during the heat treatment of an Al-Li alloy. The presence of such a reducing atmosphere prevents the reaction of surface lithium atoms with atmosphere components that would cause a diffusion and subsequent depletion of lithium atoms in the region near the surface. As a result, the present invention suppresses lithium loss and consequently prevents the formation of agglomerated lithium atom vacancies which would otherwise develop into microscopic metallic porosity. The prevention of such a condition maintains high fatigue resistance and corrosion resistance in association with metallic strength.
公开/授权文献
- US4590830A Method and apparatus for controlling casing holdback 公开/授权日：1986-05-27
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