Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of preparation method of ultra-low elastic modulus high-strength titanium alloy material

A technology of elastic modulus and titanium alloy, which is applied in the field of biomedical material preparation, can solve unseen problems and achieve the effects of strong repeatability, simple process method and short preparation cycle

Active Publication Date: 2016-12-07
UNIV OF SCI & TECH BEIJING
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no relevant research reports at home and abroad

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 preparation method of ultra-low elastic modulus high-strength titanium alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Ti, Mo and Fe element powders are used as raw materials, the particle size is -500 mesh, and the ratio is carried out according to the nominal composition Ti-8Mo-3Fe (molybdenum equivalent of 16.6wt.%). The mixed powder was subjected to vibratory high-energy ball milling. The ball milling process was carried out under the protection of high-purity argon, with a ball-to-material ratio of 10:1 and a rotational speed of 1000r / min. Composite powder with an average grain size of about 15nm was collected after ball milling for 10h. Put the ball mill powder into a Φ20 stone mill mold, then put the stone mill mold into a discharge plasma sintering furnace, vacuumize the system to 2Pa, add axial pressure to 40MPa, and heat up to 900°C at a speed of 100°C / min , after holding for 5 minutes and then cooling with the furnace, the Ti-8Mo-3Fe alloy bulk material is obtained. After testing, the prepared alloy sample is composed of β+FCC-Ti two phases, and its density is 98.95%, alloy....

Embodiment 2

[0018] Ti and Mo element powders are used as raw materials, the particle size is -325 mesh, and the proportion is carried out according to the nominal composition Ti-6Mo (molybdenum equivalent of 6 wt.%). The mixed powder is subjected to vibratory high-energy ball milling, and the ball milling process is carried out under the protection of high-purity argon, with a ball-to-material ratio of 10:1 and a rotational speed of 1200r / min. After ball milling for 8 hours, the composite powder with an average grain size of about 32nm was collected. Put the ball mill powder into a Φ20 stone mill mold, then put the stone mill mold into a spark plasma sintering furnace, vacuumize the system to 2Pa, add axial pressure to 40MPa, and heat up to 1000℃ at a speed of 100℃ / min , after holding for 5 minutes and then cooling with the furnace, the Ti-6Mo alloy bulk material is obtained. After testing, the density of the prepared sample was 98.49%. The mechanical properties of the sample are: the e...

Embodiment 3

[0020] Ti, Mo and Fe element powders are used as raw materials, the particle size is -500 mesh, and the proportion is carried out according to the nominal composition Ti-8Mo-9Fe (molybdenum equivalent of 33.7 wt.%). The mixed powder was subjected to vibratory high-energy ball milling, and the ball milling process was carried out under the protection of high-purity argon, with a ball-to-material ratio of 15:1 and a rotational speed of 800r / min. After ball milling for 12 hours, the composite powder with an average grain size of about 9nm was collected. Put the ball mill powder into a Φ20 stone mill mold, then put the stone mill mold into a spark plasma sintering furnace, vacuumize the system to 2Pa, add axial pressure to 40MPa, and heat up to 850℃ at a speed of 100℃ / min , After holding for 5 minutes and then cooling with the furnace, a Ti-8Mo-9Fe alloy bulk material is obtained. After testing, the prepared alloy sample is composed of β+FCC-Ti and a small amount of TiFe phase, a...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
elastic modulusaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for preparing an ultra-low elastic modulus and high-strength titanium alloy material, which belongs to the technical field of biomedical material preparation. Using Ti, Mo, and Fe element powders as the main raw materials, the composition ratio is carried out according to the molybdenum equivalent of 6~38wt.%, the mixed powder is subjected to high-energy ball milling, and nanocrystalline titanium-based composite powder is obtained by adjusting the ball milling process parameters. Put the ball mill powder into the graphite mold and carry out spark plasma sintering. The sintering temperature is 800~1000℃. The advantage of this method is that the process is simple and the preparation period is short, and the prepared alloy is mainly composed of β-Ti and FCC-Ti two phases, and has the characteristics of ultra-fine grain structure. The prepared new titanium alloy has the characteristics of ultra-low elastic modulus, high strength, and high plasticity. Its elastic modulus index matches that of natural bone and has excellent biomechanical adaptability.

Description

technical field [0001] The invention provides a method for preparing an ultra-low elastic modulus and high-strength titanium alloy material, which belongs to the technical field of biomedical material preparation. technical background [0002] Titanium alloy has the advantages of good biocompatibility, high specific strength, low elastic modulus, corrosion resistance, etc., and has become the focus of development in the field of biomedical materials. At present, the clinically used titanium alloys are mainly Ti-6Al-4V and its improved alloys, but the elastic modulus of these alloys is about 80~110GPa, which is still larger than the elastic modulus of human tissue (10~30GPa), and it is difficult to compare with human bone. match. In addition, the precipitation of Al or V ions after long-term implantation in the body will also cause potential harm to the human body. On this basis, the design and development of new β-type titanium alloys that are non-toxic and have a lower el...

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): C22C14/00C22C1/04
Inventor 路新夏青徐伟曲选辉王涛
Owner UNIV OF SCI & TECH BEIJING
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com