Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of low elastic modulus corrosion-resistant titanium alloy and preparation method thereof

A low elastic modulus, corrosion-resistant technology, applied in the field of titanium alloys, can solve problems such as low elastic modulus, achieve the effect of reducing the phase transition temperature of alloys, supplementing and improving performance, and improving mechanical properties

Active Publication Date: 2019-11-12
中鼎特金秦皇岛科技股份有限公司 +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the widespread application of titanium and titanium alloys, the continuous development of medicine and the continuous attention to human health, the field of biomedicine has put forward more stringent requirements for the performance of titanium alloys. Traditional titanium alloys are in terms of elastic modulus and corrosion resistance. It is difficult to meet the requirements of the current human implant materials. As a human implant material, it should have a low elastic modulus to avoid human bone damage and osteoporosis caused by the stress shielding effect. It should also have excellent durability. Corrosion performance to meet the long-term normal service conditions in the environment of human body fluids

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of low elastic modulus corrosion-resistant titanium alloy and preparation method thereof
  • A kind of low elastic modulus corrosion-resistant titanium alloy and preparation method thereof
  • A kind of low elastic modulus corrosion-resistant titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The present invention also provides a method for preparing the low elastic modulus corrosion-resistant titanium alloy described in the above technical solution, comprising the following steps:

[0033] (1) Obtain the as-cast alloy billet after melting the alloy raw material;

[0034] (2) carrying out solid solution treatment to the alloy ingot obtained in the step (1) to obtain a solid solution billet;

[0035] (3) Cooling the solid solution billet obtained in the step (2) after aging treatment to obtain a low elastic modulus corrosion-resistant titanium alloy.

[0036] In the invention, the alloy raw material is smelted to obtain the cast alloy billet. In the present invention, there is no special limitation on the type of the alloy raw material, and the alloy raw material smelted by titanium alloy well-known to those skilled in the art shall be based on the titanium alloy that can obtain the target composition. In the present invention, the alloy raw materials prefe...

Embodiment 1

[0046] According to the alloy composition Ti-5Zr-6.5Al-6.5Nb-0.1Ta (mass percentage) ingredients, weigh 81.9g of industrial grade sponge titanium, 5g of sponge zirconium, 6.5g of pure aluminum, 6.5g of pure niobium and 0.1g of pure tantalum and immerse in In anhydrous ethanol, after ultrasonic cleaning, air-dry, put it into a water-cooled copper crucible in a non-consumable vacuum arc melting furnace, and the vacuum degree in the furnace cavity should be pumped to 8×10 -3 Below Pa, after filling high-purity argon as protective gas before arc smelting, the arc temperature is about 2500°C during each smelting, and the smelting time is about 3 minutes. The ingot is turned over for smelting, so that the smelting-casting ingot is repeatedly smelted and turned over six times to ensure that the finally obtained ingot has a uniform composition.

[0047] Then take out the alloy ingot and put it into a vacuum / atmosphere tube furnace (SK-G06143 Tianjin Zhonghuan Experimental Electric Fur...

Embodiment 2

[0051] According to the alloy composition Ti-15Zr-6.3Al-6.7Nb-0.2Ta (mass percentage), weigh 71.8g of industrial-grade sponge titanium, 15g of sponge zirconium, 6.3g of pure aluminum, 6.7g of pure niobium and 0.2g of pure tantalum and immerse in In anhydrous ethanol, after ultrasonic cleaning, air-dry, put it into a water-cooled copper crucible in a non-consumable vacuum arc melting furnace, and the vacuum degree in the furnace cavity should be pumped to 8×10 -3 Below Pa, after filling high-purity argon as protective gas before arc smelting, the arc temperature is about 2500°C during each smelting, and the smelting time is about 3 minutes. The ingot is smelted by turning it over, so that the smelting-casting ingot is repeatedly smelted and turned over six times to ensure that the finally obtained ingot has a uniform composition.

[0052] Then take out the alloy ingot and put it into a vacuum / atmosphere tube furnace (SK-G06143 Tianjin Zhonghuan Experimental Electric Furnace Co....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides low-elastic-modulus anticorrosion titanium alloy and a preparation method thereof. The low-elastic-modulus anticorrosion titanium alloy comprises, by mass, 5.5-6.5% of Al, 6.5-7.5% of Nb, 5-45% of Zr, < / =0.5% of Ta, and the balance of Ti. The contents of the elements are controlled strictly; mechanical properties of the alloy herein can be improved; corrosion resistance of the alloy herein can be suitably improved. Alpha'' martensitic phase with lower elastic modulus can be attained; the performance of medical Ti alloy can be supplemented and improved. Experimental results show that the low-elastic-modulus anticorrosion titanium alloy provided herein has elastic modulus that is 18% lower than traditional titanium alloys.

Description

technical field [0001] The invention relates to the technical field of titanium alloys, in particular to a low elastic modulus corrosion-resistant titanium alloy and a preparation method thereof. Background technique [0002] With a series of advantages such as high specific strength, high specific modulus, and corrosion resistance, titanium alloy has a wide range of application advantages, and has been valued in many fields such as marine engineering, aerospace, biomedicine, metallurgy, chemical industry, and light industry. [0003] With the widespread application of titanium and titanium alloys, the continuous development of medicine and the continuous attention to human health, the field of biomedicine has put forward more stringent requirements for the performance of titanium alloys. Traditional titanium alloys are in terms of elastic modulus and corrosion resistance. It is difficult to meet the requirements of the current human implant materials. As a human implant mat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C14/00C22C30/00C22F1/18
CPCC22C1/02C22C14/00C22C16/00C22C30/00C22F1/002C22F1/18C22F1/183C22F1/186
Inventor 刘日平刘曙光周奕年马明臻张星景勤张新宇罗雷
Owner 中鼎特金秦皇岛科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com