| 摘要 |
A process for chemical milling of beryllium and high beryllium alloys is described wherein the beryllium is subjected to an aqueous solution of an acid selected from the group consisting of sulfuric acid, oxalic acid, and ammonium acid fluoride plus sufficient hexavalent chromium ion to prevent channeling. In a preferred embodiment sulfuric acid is present in the range of 5-15 percent chromium ion is present in the range of 7-10 percent CrO3 ; sodium nitrate is present up to about 1.3 percent; and hydrofluoric acid is present up to about 2 percent.
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