Low-cost and high-strength titanium alloy plate prepared by 100% of returned burdens and preparation method thereof

Abstract

The invention provides a low-cost and high-strength titanium alloy plate prepared by 100% of returned burdens. The low-cost and high-strength titanium alloy plate comprises the following components inpercentage by mass: 3.0-6.0% of Al, 3.0-5.5% of Mo, 3.0-5.5% of V, 0.1-2.0% of Cr, 0.1-2.0% of Fe, O not more than 0.20%, N not more than 0.10%, C not more than 0.10%, and the balance of Ti and inevitable impurities; raw materials of all the components of the low-cost and high-strength titanium alloy plate prepared by 100% of the returned burdens are pure titanium residues and titanium alloy residues; the pure titanium residues are one or more of TA1, TA2, TA3 and TA4; and the titanium alloy residues are one or several of TA11, TA18, TB2, TB6, TC4, TC6 and TC18. The invention further providesa preparation method of the low-cost and high-strength titanium alloy plate prepared by 100% of the returned burdens. Compared with the prior art, the low-cost and high-strength titanium alloy plateprepared by 100% of the returned burdens by the preparation method reaches the stretch strength of higher than 1150 MPa.

Description

technical field [0001] The invention relates to the field of preparation and processing of titanium alloys, in particular to a low-cost high-strength titanium alloy plate prepared by 100% returned charge and a preparation method thereof. Background technique [0002] Because titanium alloy has a series of advantages such as low density, high specific strength and excellent corrosion resistance, it has become more and more widely researched and applied in the fields of aerospace, shipbuilding and chemical industry. Due to the high cost of titanium and titanium alloys, the large-scale application of titanium and titanium alloys is limited. Therefore, the research and application of low-cost titanium alloys have attracted the attention of countries all over the world, and a lot of financial and manpower have been invested in the development of low-cost titanium alloy materials and the development of short-process preparation and processing technologies. [0003] The high cost ...

AI Technical Summary

Problems solved by technology

Since the TC18 titanium alloy contains many types of elements, including Al with a low melting point and Mo with a high melting point, as well as Cr and Fe, which are easy to segregate, it not only increases the difficulty of smelting the alloy, but also increases the recovery of the alloy. Disposal is also an issue, recycling is not yet possible

At present, there are a large number of TA1, TA2, TA3, TA4, TA11, TA18, TB2, TB6, TC4, TC6 and TC18 titanium alloy residues in relevant domestic titanium enterprises, which cannot be recycled, resulting in huge waste of materials

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