Today’s Patent – Preparation Method of Titanium Alloy Powders

The said invention (US12083602B2) was invented by Yi Xu, Chengyang Zhang, Siyi HE, Hui Chen, patented by USPTO on 19-11-2021. Currently, it stands assigned to Southwest Jiaotong University.

A method for preparing yttrium oxide-dispersed and strengthened titanium alloy powders. The present disclosure provides a preparation method of titanium alloy powders, by performing several times of vacuum smelting process of yttrium (Y) melting into titanium alloy, after forging and rolling process, preparing titanium alloy powders by plasma rotary electrode. Titanium alloy powders have excellent properties such as low oxygen content, ultra-high spherical shape, high strength and high hardness.

The beneficial effects of present disclosure are that by adding yttrium element during the preparation process, and reacting yttrium in situ with the oxygen of matrix to generate yttrium oxide with nanoscale and thuss reduce the oxygen content of the titanium alloy powder. The reinforcing phase yttrium oxide generated in the titanium alloy powder is evenly distributed in the matrix, and the dispersion reinforcement improves the strength and hardness of the alloy powder, which further improves the application field of the titanium alloy powder. The preparation process of titanium alloy powders is simple and can be completed on the existing atomization production line without any adjustment. Therefore, the present invention has a good general application prospect.