Titanium-nickel-iron-based alloy material and preparation method thereof

The invention provides a titanium-nickel-iron-based alloy material and a preparation method thereof, and belongs to the technical field of hard alloys, and the preparation method comprises the following steps: S1, preparing porous hollow iron oxide/nickel oxide microspheres; s2, preparation of a Fe-Ni-Al-Ti composite oxide is carried out; s3, hydrogen reduction; s4, preparing the modified composite active additive; and S5, forming and sintering. The titanium-nickel-iron alloy material prepared by the invention has better oxidation resistance, high temperature resistance and corrosion resistance, good processability and less TCP phase formation, and the obtained alloy material has higher strength, better plasticity and toughness, long alloy endurance life, good aging resistance and wide application prospect. 本发明提出了一种钛镍铁基合金材料及其制备方法，属于硬质合金技术领域，包括以下步骤：S1.多孔中空氧化铁/氧化镍微球的制备；S2.Fe-Ni-Al-Ti复合氧化物的制备；S3.氢气还原；S4.改性复合活性添加剂的制备；S5.成型与烧结。本发明制得的钛镍铁合金材料具有较好的耐氧化、耐高温、耐腐蚀，加工性能好，TCP相形成较少，得到的合金材料具有较高的强度和较好的塑性和韧性，合金持久寿命长，耐老化性能佳，具有广阔