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A kind of processing method of titanium zirconium niobium alloy

A processing method and technology of niobium alloys, which are applied in metal processing equipment, manufacturing tools, metal rolling, etc., can solve the problems of reducing the mechanical properties of alloys, easy oxidation, low yield, etc., and achieve internal stress elimination, low cost, and improved Yield Effect

Active Publication Date: 2021-04-20
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the existing processing technology of titanium, zirconium and niobium alloys mainly adopts smelting combined with forging, followed by heating and hot rolling and subsequent heat treatment; or, direct smelting and homogenization treatment, titanium, zirconium and niobium alloys are easy to oxidize during processing, further reducing mechanical properties of the alloy, resulting in low yield

Method used

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  • A kind of processing method of titanium zirconium niobium alloy
  • A kind of processing method of titanium zirconium niobium alloy
  • A kind of processing method of titanium zirconium niobium alloy

Examples

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Embodiment 1

[0030] A processing method for a titanium-zirconium-niobium alloy, comprising the following steps in sequence:

[0031] Step S1: Pour the molten titanium-zirconium-niobium alloy into a continuous casting machine to cast a continuous casting slab. In the titanium-zirconium-niobium alloy, the mass fraction of zirconium is 35% and the mass fraction of niobium is 10%.

[0032] Step S2: Fill the soaking furnace with argon and raise the temperature of the soaking furnace to the temperature for homogenization treatment, keep it warm, take the continuous casting billet out of the continuous casting machine, and immediately put it into the soaking furnace for homogenization treatment , when the continuous casting slab is put into the soaking furnace, the temperature of the continuous casting slab is equal to the homogenization treatment temperature, the homogenization treatment temperature is 1200°C, and the homogenization treatment time is 1h. In some embodiments, when the continuous ...

Embodiment 2

[0036] In Example 2 and Example 3, the specific steps of the titanium-zirconium-niobium alloy processing method are the same as those in Example 1. Embodiment 2 and Embodiment 3 are different from Embodiment 1 in that the parameters of step S2 and step S3 are different. The parameters in each step of Embodiment 1 to Embodiment 3 are shown in Table 1.

[0037] Parameters in each step of table 1 embodiment 1~embodiment 3

[0038]

Embodiment 4

[0040] In Embodiment 4, the specific steps and parameters in the processing method of the titanium-zirconium-niobium alloy are the same as those in Embodiment 1. The difference between embodiment 4 and embodiment 1 is that embodiment 4 also includes the following steps in sequence after step S3:

[0041]Step S4: Take out the continuous casting slab after hot rolling from the hot continuous rolling mill, put it into a vacuum extruder for vacuum extrusion treatment, when the continuous casting slab is put into the vacuum extruder, the temperature of the continuous casting slab is Temperature, the temperature of the vacuum extrusion treatment is 1000°C, and the extrusion ratio is 30.

[0042] Step S5: Recrystallization annealing is performed on the titanium-zirconium-niobium alloy under argon protection, the temperature of the recrystallization annealing is 750° C., and the time of the recrystallization annealing is 40 minutes.

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Abstract

The invention provides a processing method of titanium zirconium niobium alloy, which can fully refine crystal grains, effectively eliminate alloy internal stress, improve mechanical properties such as alloy plasticity and strength, reduce alloy oxidation, and improve alloy yield. The processing method of the titanium-zirconium-niobium alloy sequentially includes: step S1, pouring the molten titanium-zirconium-niobium alloy into a continuous casting machine to cast a continuous casting billet; step S2, filling the soaking furnace with argon gas and pouring the soaking furnace into the soaking furnace The temperature is raised to the temperature of the homogenization treatment, the continuous casting slab is taken out from the continuous casting machine, and immediately put into the soaking furnace for homogenization treatment. 0.5-2h; in step S3, the continuous casting billet is taken out from the soaking furnace, immediately put into the hot continuous rolling mill, and hot-rolled for 5-8 passes, and the hot-rolling temperature is 700-1000°C.

Description

technical field [0001] The invention relates to a processing method of a titanium-zirconium-niobium alloy. Background technique [0002] The following background art is provided to help the reader understand the present invention and is not to be admitted as prior art. [0003] Titanium-zirconium-niobium alloy has been widely used in aerospace, national defense and biomedical fields due to its strong corrosion resistance, good wear resistance and high specific strength. However, the current titanium-zirconium-niobium alloys cannot fully meet the demand. For example, when titanium, zirconium and niobium alloys are used in the biomedical field, because the elastic modulus is higher than that of human bones, it will cause mismatch when implanted in the human body for a long time, especially when the exercise is too intense, it is easy to cause personal bone damage. In severe cases, even lead to bone fracture, so it is necessary to further reduce the elastic modulus of the mat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/02C22F1/18C22C14/00B21B37/00B21B37/74
CPCB21B37/00B21B37/74C22C14/00C22F1/02C22F1/183
Inventor 宋宇峰丁学锋陈宇强刘文辉
Owner HUNAN UNIV OF SCI & TECH