公开(公告)号：US06328824B1

公开(公告)日：2001-12-11

申请号：US09256994

申请日：1999-02-25

申请人： Didier Mareuse ,  Thérèse Six ,  Pierre Jean Krauth

发明人： Didier Mareuse ,  Thérèse Six ,  Pierre Jean Krauth

IPC分类号： C23C228

CPC分类号： C23C2/28 ,  C23C2/12 ,  Y10S428/925 ,  Y10S428/926 ,  Y10T428/12639 ,  Y10T428/12757 ,  Y10T428/12764

摘要： A metallic sheet with an aluminum coating, the coating having an internal layer of iron/aluminum/silicon alloys, and an external layer, thicker, of an aluminum-based phase and secondarily of phases in the form of needles or elongated lamellae. The projection of the length of all needles or lamellae in a direction perpendicular to the plane of the external layer is less than the thickness of this layer. This structure, which is obtained by a thermal treatment of the external layer at a temperature of 570-660° C., notably for less than 15 sec, considerably decreases the risks of cracking.

摘要翻译： 具有铝涂层的金属片，该涂层具有铁/铝/硅合金的内层，以及外层，较厚的铝基相，其次为针状或细长片状的相。 所有针或薄片在垂直于外层平面的方向上的长度的投影小于该层的厚度。 通过在570-660℃的温度下，特别是小于15秒的外部热处理获得的这种结构显着降低了开裂的风险。

公开(公告)号：US06503347B1

公开(公告)日：2003-01-07

申请号：US09577597

申请日：2000-05-25

申请人： Andrew George Wysiekierski ,  Gary Anthony Fisher ,  Sabino Steven Anthony Petrone ,  Radhakrishna Chakravarthy Mandyam

发明人： Andrew George Wysiekierski ,  Gary Anthony Fisher ,  Sabino Steven Anthony Petrone ,  Radhakrishna Chakravarthy Mandyam

IPC分类号： C23C228

CPC分类号： C23C12/02 ,  C10G9/203 ,  C23C4/18 ,  C23C10/52 ,  C23C26/00 ,  Y10T428/12583 ,  Y10T428/12979

摘要： There is provided a surface alloyed component which comprises a base alloy with a diffusion barrier layer enriched in silicon and chromium being provided adjacent thereto. An enrichment pool layer is created adjacent the diffusion barrier and contains silicon and chromium and optionally titanium or aluminum. The method comprises depositing a surface alloy on the base alloy at a temperature in the range of 400 to 1000° C. and heat treating the surface alloy at a ramp temperature rate of at least 5C°/minute, preferably 10 to 20° C./minute, to a desired maximum temperature at which the surface alloyed component is maintained for a time sufficient to provide the enrichment pool or the enrichment pool with a diffusion barrier layer. A reactive gas treatment may be used to generate a replenishable protective oxide scale of alumina or chromia on the outermost surface of the surface alloyed component.

摘要翻译： 提供了一种表面合金成分，其包括具有富含硅的扩散阻挡层的基底合金和与之相邻的铬。 在扩散阻挡层附近产生富集池层，并且含有硅和铬以及任选的钛或铝。 该方法包括在400〜1000℃的温度范围内在基体合金上沉积表面合金，并以至少5℃/分钟，优选10〜20℃的斜坡温度热处理表面合金。 /分钟，使表面合金成分保持足够的时间以使富集池或富集池具有扩散阻挡层的所需最高温度。 可以使用反应性气体处理来在表面合金成分的最表面上产生氧化铝或氧化铬的可补充的氧化皮保护层。