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Preparation method of Ti-25Nb alloy sheet

A ti-25nb, alloy technology, applied in the field of preparation of Ti-25Nb alloy sheet, achieves the effect of uniform structure, no component segregation, and smooth surface

Active Publication Date: 2013-03-20
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no report about the preparation method of Ti-25Nb alloy sheet, so it is imperative to develop a preparation method of Ti-25Nb alloy sheet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of the present embodiment Ti-25Nb alloy thin plate comprises the following steps:

[0026] Step 1. Mix and press the sponge titanium and Ti-47Nb master alloy to form a consumable electrode, then place the consumable electrode in a vacuum consumable arc melting furnace for two vacuum consumable arc melting, wherein the first The melting current of the first vacuum consumable arc melting is 2200A, the arc voltage is 30V, and the vacuum degree is 13Pa. The melting current of the second vacuum consumable arc melting is 3200A, the arc voltage is 31V, and the melting vacuum degree is 6Pa. Obtain a Ti-25Nb alloy ingot; the cross section of the Ti-25Nb alloy ingot is a circle with a diameter of 160 mm;

[0027] Step 2. Carry out blank forging after the Ti-25Nb alloy ingot described in step 1 is subjected to the first surface grinding treatment, and then carry out the second surface grinding treatment after air cooling to obtain the first forging blank; th...

Embodiment 2

[0034] The preparation method of the present embodiment Ti-25Nb alloy thin plate comprises the following steps:

[0035] Step 1. Mix and press the sponge titanium and Ti-47Nb master alloy to form a consumable electrode, then place the consumable electrode in a vacuum consumable arc melting furnace for two vacuum consumable arc melting, wherein the first The melting current of the first vacuum consumable arc melting is 2000A, the arc voltage is 29V, and the vacuum degree is 10Pa. The melting current of the second vacuum consumable arc melting is 3400A, the arc voltage is 30V, and the melting vacuum degree is 4Pa. Obtain a Ti-25Nb alloy ingot; the cross section of the Ti-25Nb alloy ingot is a circle with a diameter of 160mm;

[0036] Step 2. Carry out blank forging after the Ti-25Nb alloy ingot described in step 1 is subjected to the first surface grinding treatment, and then carry out the second surface grinding treatment after air cooling to obtain the first forging blank; the...

Embodiment 3

[0043] The preparation method of the present embodiment Ti-25Nb alloy thin plate comprises the following steps:

[0044] Step 1. Mix and press the sponge titanium and Ti-47Nb master alloy to form a consumable electrode, then place the consumable electrode in a vacuum consumable arc melting furnace for two vacuum consumable arc melting, wherein the first The melting current of the first vacuum consumable arc melting is 2100A, the arc voltage is 29V, and the vacuum degree is 5Pa. The melting current of the second vacuum consumable arc melting is 3300A, the arc voltage is 30V, and the melting vacuum degree is 1Pa. Obtain a Ti-25Nb alloy ingot; the cross section of the Ti-25Nb alloy ingot is a circle with a diameter of 160 mm;

[0045] Step 2. Carry out blank forging after the Ti-25Nb alloy ingot described in step 1 is subjected to the first surface grinding treatment, and then carry out the second surface grinding treatment after air cooling to obtain the first forging blank; the...

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Abstract

The invention provides a preparation method of a Ti-25Nb alloy sheet, which comprises the following steps: 1. carrying out vacuum consumable arc-melting on raw materials sponge titanium and Ti-47Nb interalloy to obtain a Ti-25Nb alloy cast ingot; 2. carrying out cogging and forging; 3. forging a sheet blank; 4. carrying out hot rolling; 5. sequentially carrying out quenching, shot blasting and pickling treatment; and 6. carrying out cold rolling to obtain the Ti-25Nb alloy sheet of which the thickness is 0.3-1mm. The Ti-25Nb alloy sheet prepared by the method provided by the invention has the advantages of no inclusion, no composition segregation, more uniform structural composition, high flatness, smooth surface and no defects, such as cracking, peeling, stratifying, folding and the like.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy preparation, and in particular relates to a preparation method of a Ti-25Nb alloy thin plate. Background technique [0002] Metal materials are the earliest biomedical materials used clinically, and can be used for various repairs, orthopedics, internal and external fixation of traditional human hard tissue (including all bones and teeth in the human trunk) defects, trauma, orthopedics, dental diseases, etc. treatment etc. At present, the medical metal materials used for surgical implants and orthopedic devices are mainly three series of medical stainless steel, cobalt-based alloys and titanium alloys, which account for about 40% of the entire biomaterial product market. Titanium alloy has developed into an ideal biomedical functional structural material in recent years due to its small specific gravity, high specific strength, low elastic modulus, corrosion resistance, excellent biocompat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/03C21D8/02C22F1/18
Inventor 于兰兰毛小南雷文光张鹏省侯智敏
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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