公开(公告)号：EP2226409A3

公开(公告)日：2011-03-02

申请号：EP10155190.1

申请日：2010-03-02

申请人： General Electric Company

发明人： Lipkin, Jane Marie ,  Anand, Krishnamurthy ,  Bucci, David Vincent ,  Lau, Yuk-Chiu ,  Pabla, Surinder ,  Pareek, Vinod Kumar ,  Schaeffer, Jon Conrad ,  Sundararajan, Guruprasad

IPC分类号： C23C28/00 ,  C23C30/00 ,  C23C4/06 ,  F01D5/28

CPC分类号： C23C30/00 ,  C23C4/06 ,  C23C28/00 ,  C23C28/042 ,  C23C28/321 ,  C23C28/322 ,  C23C28/3225 ,  C23C28/324 ,  C23C28/34 ,  C23C28/341 ,  C23C28/345 ,  C23C28/3455 ,  C23C28/42 ,  F04D29/023 ,  F04D29/324 ,  F05D2230/31 ,  F05D2260/95 ,  F05D2300/611

摘要： A sacrificial and erosion-resistant turbine compressor airfoil (1) includes a turbine compressor airfoil (1) having a modified airfoil surface (32). The airfoil surface (32) has an airfoil coating (61) that includes a sacrificial coating (62) comprising a layer of Al, Cr, Zn, an Ni-Al alloy, an Al-Si alloy, an Al-based alloy, a Cr-based alloy or a Zn-based alloy, an Al polymer composite, or a combination thereof, or a layer of a conductive undercoat (70) and an overcoat (72) of an inorganic matrix binder having a plurality of ceramic particles and conductive particles embedded therein disposed on the undercoat. The airfoil coating (61) also includes an sacrificial coating (62), wherein one of the sacrificial coating (62) or the erosion-resistant coating (64) is disposed on the airfoil surface (32) and the other of the corrosion-resistant coating or the erosion-resistant coating (64) is disposed on the respective one, and wherein the sacrificial coating (62) is more anodic than the airfoil surface (32) or the erosion-resistant coating (64).