High-aluminum aluminum-titanium target material and preparation method thereof

The invention belongs to the technical field of hot isostatic pressing method powder metallurgy, and discloses a high-aluminum aluminum-titanium target and a preparation method thereof. The atomic proportion of aluminum in the target material is larger than 50%, and the target material is characterized in that the target material is composed of elementary substance phases of Al and Ti, free of alloy phases, extremely high in strength or toughness, easy to machine into complex shapes and free of cracking or breaking in the machining process. The target material is mainly applied to AlTiN coating film coating and decorative film coating of a cutter, and the main preparation process of the target material comprises the steps of powder mixing, bagging and degassing, hot isostatic pressing, machining and the like. 本发明属于热等静压法粉末冶金技术领域，本发明公开了一种高铝铝钛靶及其制备方法。该靶材中铝的原子占比大于50%，其特点是，靶材由Al和Ti的单质相构成，无合金相，靶材具有极高的强度或韧性，易加工成复杂形状，加工过程中不会发生崩裂或折断。该靶材主要应用于刀具的AlTiN涂层镀膜和装饰镀膜，靶材的制备的主要过程包括粉末的混合、装包套脱气、热等静压、机加工等。