公开(公告)号：US07150921B2

公开(公告)日：2006-12-19

申请号：US10847357

申请日：2004-05-18

申请人： Warren Arthur Nelson ,  Jon Conrad Schaeffer ,  Sharon Trombly Swede ,  David Vincent Bucci ,  Joseph Debarro ,  Terry Howard Strout ,  Tyrone Robert Mortensen

发明人： Warren Arthur Nelson ,  Jon Conrad Schaeffer ,  Sharon Trombly Swede ,  David Vincent Bucci ,  Joseph Debarro ,  Terry Howard Strout ,  Tyrone Robert Mortensen

IPC分类号： B32B15/04 ,  B32B15/09 ,  B32B15/20 ,  C23C4/06 ,  C23C4/18

CPC分类号： C23C28/325 ,  C23C4/18 ,  C23C26/00 ,  C23C28/3215 ,  C23C28/3455 ,  Y02T50/67 ,  Y10T428/12479 ,  Y10T428/12569 ,  Y10T428/12611 ,  Y10T428/12736 ,  Y10T428/12847 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/31681

摘要： A bi-layer bond coating for use on metal alloy components exposed to hostile thermal and chemical environment, such as a gas turbine engine, and the method for applying such coatings. The preferred coatings include a bi-layer bond coat applied to the metal substrate using high velocity oxy-fuel (HVOF) thermal spraying. Bi-layer bond coatings in accordance with the invention consist of a dense first inner layer (such as iron, nickel or cobalt-based alloys) that provides oxidation protection to the metal substrate, and a second outer layer having controlled porosity that tends to promote roughness, mechanical compliance, and promotes adherence of the thermal barrier coating (TBC). Preferably, the outer, less dense layer of the bi-layer bond coat is formed from a mixture of metallic powder and polyester to adjust and control the porosity, but without sacrificing mechanical compliance.

摘要翻译： 用于暴露于恶劣的热和化学环境的金属合金组分（例如燃气涡轮发动机）上的双层粘合涂层以及用于涂覆这种涂层的方法。 优选的涂层包括使用高速氧 - 燃料（HVOF）热喷涂施加到金属基底的双层粘合涂层。 根据本发明的双层粘合涂层由致密的第一内层（例如铁，镍或钴基合金）组成，其向金属基底提供氧化保护，以及具有趋向促进的受控孔隙率的第二外层 粗糙度，机械柔顺性，并促进热障涂层（TBC）的粘附。 优选地，双层粘合涂层的外部，较不致密的层由金属粉末和聚酯的混合物形成，以调节和控制孔隙率，但不牺牲机械顺应性。