公开(公告)号：US06129991A

公开(公告)日：2000-10-10

申请号：US979906

申请日：1997-08-14

申请人： Bruce M. Warnes ,  William J. Shriver ,  Ronald J. Honick, Jr. ,  Nick S. DuShane

发明人： Bruce M. Warnes ,  William J. Shriver ,  Ronald J. Honick, Jr. ,  Nick S. DuShane

IPC分类号： F01D5/28 ,  C23C10/02 ,  C23C10/14 ,  C23C10/48 ,  C23C16/12 ,  C23C16/56 ,  C23C28/02 ,  B32B15/00 ,  C23C16/00

CPC分类号： C23C28/021 ,  C23C10/02 ,  C23C10/14 ,  C23C16/12 ,  C23C28/022 ,  C23C28/028 ,  F01D5/288 ,  Y10S428/941 ,  Y10T428/12458 ,  Y10T428/12493 ,  Y10T428/1266 ,  Y10T428/1275 ,  Y10T428/12861 ,  Y10T428/12875 ,  Y10T428/12944

摘要： High temperature oxidation resistance of an aluminide diffusion overcoated MCrAlY coating system is substantially improved by CVD over-aluminizing the MCrAlY type overlay coating under CVD conditions that result in reduced concentrations of such tramp impurities as S and P in the aluminized MCrAlY overlay coating region of the coating system. The CVD aluminizing conditions yield an outwardly grown aluminide over-coat on the underlying MCrAlY type coating.

摘要翻译： 铝化合物扩散涂层的MCrAlY涂层体系的高温抗氧化性能通过在CVD条件下CVD过度镀覆MCrAlY型覆盖涂层得到显着改善，这导致在铝化MCrAlY覆盖涂层区域中诸如S和P的这种杂质杂质的浓度降低 涂层系统。 CVD镀铝条件在底层MCrAlY型涂层上产生向外生长的铝化物覆盖层。