公开(公告)号：US09080235B2

公开(公告)日：2015-07-14

申请号：US13448445

申请日：2012-04-17

申请人： Lidiya Omovna Chunyayeva ,  Oleg Nikolayevich Chunyayev ,  Leonid Leonidovich Tovazhnyanskyy

发明人： Lidiya Omovna Chunyayeva ,  Oleg Nikolayevich Chunyayev ,  Leonid Leonidovich Tovazhnyanskyy

IPC分类号： C23C10/32 ,  C23C10/38 ,  C23C10/40 ,  C23C10/60 ,  C23C30/00

CPC分类号： C23C10/32 ,  C23C10/38 ,  C23C10/40 ,  C23C10/60 ,  C23C30/00

摘要： A composition for diffusion surface alloying of ferrocarbon alloys with chromium, consisting essentially of, by weight, about 25%-40% ferrochromium; about 54%-74% aluminum oxide or mixtures of aluminum oxide, silicon oxide and magnesium oxide in a weight ratio of about 3:2:1; about 1%-3% ammonium chloride; and a reducing agent consisting essentially of about 0.1%-3% aluminum, about 0.1%-2% silicon, about 0.1%-1.5% magnesium, or about 0.1%-3% of a mixture of aluminum, silicon and magnesium in a weight ratio of about 3:2:1. A method for diffusion surface alloying of a ferrocarbon workpiece with chromium, comprising providing the above composition; exposing the workpiece to the composition; and heating the workpiece and composition for sufficient time and temperature to form a chromium containing diffusion layer on the surface of the workpiece.

摘要翻译： 用于钼铁合金与铬的扩散表面合金化的组合物，基本上由重量计约25％〜40％的铬铁合金组成; 约54％-74％的氧化铝或氧化铝，氧化硅和氧化镁的混合物，其重量比为约3：2：1; 约1％-3％氯化铵; 和基本上由重量的铝，硅和镁的混合物组成的约0.1％-3％铝，约0.1％-2％硅，约0.1％-1.5％镁或约0.1％-3％的还原剂 比例约为3：2：1。 一种碳化钨工件与铬的扩散表面合金化的方法，包括提供上述组成; 将工件暴露于组合物; 并加热工件和组合物足够的时间和温度以在工件的表面上形成含铬扩散层。