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Preparation method for TLM titanium alloy foil with nanocrystalline structure

A titanium alloy foil and nanocrystalline technology, which is used in manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problem of inability to roll high-precision, high-finish titanium alloy foils, and achieve small limitations in sheet size and material. , easy to control, the effect of improving production efficiency

Inactive Publication Date: 2015-07-08
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Two-roll or four-roll rolling mills can only roll soft metals, such as aluminum and aluminum alloy foils, lead foils, tin foils, etc., but cannot produce high-precision, high-gloss titanium alloy foils.
At present, the ordinary titanium coarse-grained foil prepared by rolling method is the thinnest to 0.008mm, and it is only suitable for the rolling of pure titanium. For the preparation of nanocrystalline TLM titanium alloy ultra-thin foil, two-roll mill or four-roll mill is currently used Rolling mills are not yet achievable

Method used

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  • Preparation method for TLM titanium alloy foil with nanocrystalline structure
  • Preparation method for TLM titanium alloy foil with nanocrystalline structure
  • Preparation method for TLM titanium alloy foil with nanocrystalline structure

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The preparation method of the TLM titanium alloy foil with nanocrystalline structure in this embodiment comprises the following steps:

[0035] Step 1. Perform uniform annealing treatment on the TLM titanium alloy plate. The specific process of the homogenization annealing treatment is: place the TLM titanium alloy plate in a vacuum annealing furnace, and keep it warm for 30 minutes at a temperature of 1023K; the TLM The thickness of the titanium alloy plate is 1 mm, and the average grain size is 20 μm (the photo of its metallographic microstructure is as follows figure 1 shown);

[0036] Step 2. Surface treatment is carried out on the TLM titanium alloy plate after the uniform annealing treatment in step 1. The specific process is: first, ultrasonically clean the TLM titanium alloy plate, and then use sandblasting to remove the oxide layer on the surface of the plate and remove the surface of the plate. The surface is roughened, then pickled, rinsed with running water...

Embodiment 2

[0046] The preparation method of the TLM titanium alloy foil with nanocrystalline structure in this embodiment comprises the following steps:

[0047] Step 1. Perform uniform annealing treatment on the TLM titanium alloy plate. The specific process of the homogenization annealing treatment is: place the TLM titanium alloy plate in a vacuum annealing furnace, and keep it warm for 30 minutes at a temperature of 1023K; the TLM The thickness of the titanium alloy plate is 2mm, and the average grain size is 100μm;

[0048] Step 2. Surface treatment is carried out on the TLM titanium alloy plate after the uniform annealing treatment in step 1. The specific process is: first, ultrasonically clean the TLM titanium alloy plate, and then use sandblasting to remove the oxide layer on the surface of the plate and remove the surface of the plate. The surface is roughened, then pickled, rinsed with running water and then dried; the sand particle size of the sandblasting is 80 mesh, and the ...

Embodiment 3

[0056] The preparation method of the TLM titanium alloy foil with nanocrystalline structure in this embodiment comprises the following steps:

[0057] Step 1. Perform uniform annealing treatment on the TLM titanium alloy plate. The specific process of the homogenization annealing treatment is: place the TLM titanium alloy plate in a vacuum annealing furnace, and keep it warm for 20 minutes at a temperature of 923K; ​​the TLM The thickness of the titanium alloy plate is 0.7mm, and the average grain size is 100μm (its metallographic microstructure is as follows Figure 5 shown);

[0058] Step 2. Surface treatment is carried out on the TLM titanium alloy plate after the uniform annealing treatment in step 1. The specific process is: first, ultrasonically clean the TLM titanium alloy plate, and then use sandblasting to remove the oxide layer on the surface of the plate and remove the surface of the plate. The surface is roughened, then pickled, rinsed with running water and then ...

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Abstract

The invention provides a preparation method for TLM titanium alloy foil with a nanocrystalline structure. The method includes the following steps of firstly, conducting homogenizing annealing on a TLM titanium alloy plate; secondly, conducting surface processing; thirdly, conducting cold rolling to obtain a foil blank; fourthly, conducting stress relieving; fifthly, sequentially conducting shearing, acid pickling, washing and drying, and then conducting sheath ply rolling till the accumulated deformation amount of rolling reaches 80% to 90%; sixthly, repeatedly executing the fifth step till the average grain size of the foil blank is smaller than 100 nm, and obtaining the TLM titanium alloy foil with the nanocrystalline structure. Production is conducted through an existing conventional device, namely, a two-roller rolling mill or a four-roller rolling mill, the method is particularly suitable for industrially preparing the nanocrystalline foil, production procedures are simple, the limitation on the panel size and materials is small, and grains and the weight of the foil can be easily controlled. Accumulative ply rolling is conducted on the foil of multiple layers, and the nanocrystalline foil with the unique performance can be obtained.

Description

technical field [0001] The invention belongs to the technical field of processing titanium and titanium alloy materials, and in particular relates to a preparation method of a TLM titanium alloy foil material with a nanocrystalline structure. Background technique [0002] Titanium and titanium alloy foils with nanocrystalline structure are a kind of structural or functional materials with special physical and mechanical properties, which are very suitable for high-tech fields such as national defense, military industry and civilian use. Especially in the fields of high-strength and low-modulus foils, precision foils, foils for plastic micro-molding, foils for superelastic instruments, biomedical materials, and damping materials. At present, it is mainly used to make decorative nets on jet engine combustion tubes, metal composite heat-resistant tiles and titanium multi-layer walls in space shuttle heat dissipation systems, and sound film materials. [0003] When the grain si...

Claims

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Application Information

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IPC IPC(8): C22F1/18C21D9/46B21D33/00
Inventor 麻西群于振涛牛金龙余森张亚峰刘春潮刘少辉
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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