New Preparation Method for Ti6Al4V Powder by Multistage Depth Reduction Process

doi:10.12442/j.issn.1002-185X.20200555

Home > Archive>Volume 50, Issue 9, 2021 >3094-3101. DOI:10.12442/j.issn.1002-185X.20200555

New Preparation Method for Ti6Al4V Powder by Multistage Depth Reduction Process
DOI:
                        10.12442/j.issn.1002-185X.20200555
                    
Author:
                        Yan JisenYan Jisen
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
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Dou ZhiheDou Zhihe
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
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Zhang TinganZhang Tingan
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
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Fan ShigangFan Shigang
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
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Niu LipingNiu Liping
Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
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Affiliation:Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China
Clc Number:
Fund Project:National Natural Science Foundation of China (U1908225, U1702253); Fundamental Research Funds for the Central Universities (N182515007, N170908001, N2025004)

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Abstract:

Using TiO₂, V₂O₅, and Al as raw materials and Mg and Ca as reducing agents, a novel method for preparing Ti6Al4V alloy powder through multistage deep reduction process was introduced. This new process has higher productivity and less pollution than traditional metallurgical process does. The results of self-propagating primary reduction experiments show that Mg is a more suitable reducing agent than Ca in the specific stage, and the porous Ti-Al-V-O precursor material with 6.74wt%~16.4wt% oxygen can be obtained when the amount of reducing agent Mg is appropriate. The Ti6Al4V powder with 0.24wt% oxygen can be obtained after the further calciothermic deep reduction (holding at 1173 K for 3.5 h).

Key words:multistage depth reduction process;self-propagating;acid leaching;Ti6Al4V alloy powder

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[Yan Jisen, Dou Zhihe, Zhang Tingan, Fan Shigang, Niu Liping. New Preparation Method for Ti6Al4V Powder by Multistage Depth Reduction Process[J]. Rare Metal Materials and Engineering,2021,50(9):3094~3101.]
DOI：10.12442/j. issn.1002-185X.20200555

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Received:July 30,2020
Revised:September 07,2020
Adopted:September 18,2020
Online: September 26,2021
Published: September 24,2021

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