有机粘结结合的Mo-Ni-Cu高性能铁基粉末

HIGH PERFORMANCE Mo-Ni-Cu ORGANICALLY BONDED STEEL POWDERS FOR MEDIUM TO HIGH DENSITY PM APPLICATIONS

含有Mo、Ni和Cu的扩散结合合金粉末被广泛应用于高性能的中高密度零部件中,其优良的压缩性,烧结韧性,耐疲劳性以及尺寸稳定性已得到认可。该扩散结合合金粉的特性来源于其特殊的退火工艺,该工艺可使Ni和Cu颗粒牢固地结合于Mo预合金钢粉的颗粒上,因此该扩散结合合金粉比常规预混粉有更好的化学组成均一性。近年来,通过有机粘结工艺将Ni和Cu与铁颗粒结合的强度已与扩散结合相媲美,甚至略优于扩散结合工艺。

Diffusion-alloyed steel powders containing Mo,Ni and Cu are widely used in the industry for medium to high density high performance PM applications.Indeed,these powders are recognized for their good compressibility,and excellent properties of sintered parts such as toughness,ductility and fatigue resistance as well as consistency and dimensional control.These characteristics are caused by special annealing process,which consists of diffusion of Ni and Cu particles to highly compressible Mo pre-alloyed water...