公开(公告)号：EP0711844A1

公开(公告)日：1996-05-15

申请号：EP95116982.0

申请日：1991-08-22

申请人： VALENITE INC.

发明人： Buljan, Sergej T. ,  Lingertat, Helmut ,  Wayne, Steven F.

IPC分类号： C22C29/00 ,  C22C29/06

CPC分类号： C22C29/005 ,  B22F3/15 ,  B22F3/23 ,  C22C29/067

摘要： A dense cermet article including about 80-95% by volume of a granular hard phase and about 5-20% by volume of a metal phase. The hard phase is a carbide, nitride, carbonitride, oxycarbide, oxynitride, or carboxynitride of a cubic solid solution selected from W-Ti, W-Hf, W-Nb, W-Ta, Zr-Ti, Hf-Ti, Hf-Zr, V-Ti, Nb-Ti, Ta-Ti, or Mo-Ti. The metal phase consists essentially of a combination of nickel and aluminum having a ratio of nickel to aluminum of from about 90:10 to about 70:30 by weight, and 0-5% by weight of an additive selected from titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, cobalt, boron, and/or carbon. The article may be produced by presintering the hard phase - metal phase component mixture in a vacuum or inert atmosphere at about 1475°-1675°C, then densifying by hot isostatic pressing at a temperature of about 1575°-1675°C, in an inert atmosphere, and at about 34-207 MPa pressure. Limiting the presintering temperature to 1475°-1575°C and keeping the presintering temperature at least 50°C below the hot pressing temperature produces an article of gradated hardness, harder at the surface than at the core. In this gradated product, the hard phase may alternatively be a carbide, nitride, carbonitride, oxycarbide, oxynitride, carboxynitride, or boride of an element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, or B.

摘要翻译： 包括约80-95体积％的粒状硬质相和约5-20体积％的金属相的密集金属陶瓷制品。 硬相是选自W-Ti，W-Hf，W-Nb，W-Ta，Zr-Ti，Hf-Ti，Hf-Ti的立方固溶体的碳化物，氮化物，碳氮化物，碳氮化物，氮氧化物或氮氧化物， Zr，V-Ti，Nb-Ti，Ta-Ti或Mo-Ti。 金属相主要由镍和铝的组合组成，镍与铝的比例为约90:10至约70:30重量，以及0-5重量％的选自钛，锆，铪的添加剂 ，钒，铌，钽，铬，钼，钨，钴，硼和/或碳。 制品可以通过在真空或惰性气氛中在约1475℃-1675℃预烧结硬相 - 金属相组分混合物，然后在约1575℃-1675℃的温度下通过热等静压进行致密化， 惰性气氛和约34-207MPa的压力。 将预烧温度限制在1475°-1575℃，并将预烧温度保持在低于热压温度的至少50℃，会产生一层比较硬的硬度，表面比核心硬。 在这种分级产品中，硬质相可以是选自Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W中的元素的碳化物，氮化物，碳氮化物，碳氧化物，氮氧化物，氮氧化物或硼化物。 B.

公开(公告)号：EP0476346A1

公开(公告)日：1992-03-25

申请号：EP91114098.6

申请日：1991-08-22

申请人： VALENITE INC.

发明人： Buljan, Sergej T. ,  Lingertat, Helmut ,  Wayne, Steven F.

IPC分类号： C22C29/00

CPC分类号： C22C29/005 ,  B22F3/15 ,  B22F3/23 ,  C22C29/067

摘要： A dense cermet article including about 80-95% by volume of a granular hard phase and about 5-20% by volume of a metal phase. The hard phase is a carbide, nitride, carbonitride, oxycarbide, oxynitride, or carboxynitride of a cubic solid solution selected from W-Ti, W-Hf, W-Nb, W-Ta, Zr-Ti, Hf-Ti, Hf-Zr, V-Ti, Nb-Ti, Ta-Ti, or Mo-Ti. The metal phase consists essentially of a combination of nickel and aluminum having a ratio of nickel to aluminum of from about 90:10 to about 70:30 by weight, and 0-5% by weight of an additive selected from titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, cobalt, boron, and/or carbon. The article may be produced by presintering the hard phase - metal phase component mixture in a vacuum or inert atmosphere at about 1475 ° -1675 0 C, then densifying by hot isostatic pressing at a temperature of about 1575 ° -1675 0 C, in an inert atmosphere, and at about 34-207 MPa pressure. Limiting the presintering temperature to 1475°-1575°C and keeping the presintering temperature at least 50 °C below the hot pressing temperature produces an article of gradated hardness, harder at the surface than at the core. In this gradated product, the hard phase may alternatively be a carbide, nitride, carbonitride, oxycarbide, oxynitride, carboxynitride, or boride of an element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, or B.

摘要翻译： 包括约80-95体积％的粒状硬质相和约5-20体积％的金属相的密集金属陶瓷制品。 硬相是选自W-Ti，W-Hf，W-Nb，W-Ta，Zr-Ti，Hf-Ti，Hf-Ti的立方固溶体的碳化物，氮化物，碳氮化物，碳氮化物，氮氧化物或氮氧化物， Zr，V-Ti，Nb-Ti，Ta-Ti或Mo-Ti。 金属相主要由镍和铝的组合组成，镍与铝的比例为约90:10至约70:30重量，以及0-5重量％的选自钛，锆，铪的添加剂 ，钒，铌，钽，铬，钼，钨，钴，硼和/或碳。 制品可以通过在真空或惰性气氛中在约1475℃-1675℃预烧结硬相 - 金属相组分混合物，然后在约1575℃-1675℃的温度下通过热等静压进行致密化， 惰性气氛和约34-207MPa的压力。 将预烧温度限制在1475°-1575℃，并将预烧温度保持在低于热压温度的至少50℃，会产生一层比较硬的硬度，表面比核心硬。 在这种分级产品中，硬质相可以是选自Ti，Zr，Hf，V，Nb，Ta，Cr，Mo，W中的元素的碳化物，氮化物，碳氮化物，碳氧化物，氮氧化物，氮氧化物或硼化物。 B.