Check patentability & draft patents in minutes with Patsnap Eureka AI!

Corrosion-resistant titanium alloy and preparation method thereof

A titanium alloy and corrosion-resistant technology, applied in the field of corrosion-resistant titanium alloy and its preparation, can solve the problems that the corrosion performance of titanium alloy is difficult to meet the engineering application, the service environment is harsh, etc., and achieves low cost, excellent corrosion resistance, and high resistance to corrosion. Corrosion Ability Increase Effect

Pending Publication Date: 2021-10-29
YUNNAN TITANIUM IND
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the continuous expansion of the application fields of titanium and titanium alloys, the service environment is becoming increasingly harsh, and the corrosion performance of traditional titanium alloys has been difficult to meet the current engineering applications. Therefore, the research and development of new titanium alloys that are more corrosion-resistant is the current research. one of the hotspots

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
  • Corrosion-resistant titanium alloy and preparation method thereof
  • Corrosion-resistant titanium alloy and preparation method thereof
  • Corrosion-resistant titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the Ti-6Al-3Nb-2Zr-1Mo-0.05C corrosion-resistant titanium alloy of the present embodiment is composed of the following raw materials by mass percentage: 6% Al, 3% Nb, 2% of Zr, 1% of Mo, 0.05% of C, and the rest of Ti.

[0032] The preparation method of the titanium alloy of the present embodiment is carried out as follows:

[0033] Step (1) Raw material preparation

[0034] Alloy raw materials are pure titanium (>99.4 wt%), pure aluminum wire (>99.9 wt%), pure niobium rod (>99.9 wt%), pure crystalline zirconium (>99.9 wt%), pure molybdenum sheet (>99.9 wt% ), graphite powder (>99.99 wt%).

[0035] Before smelting, the alloy raw materials (except graphite powder) were ultrasonically cleaned with acetone and ethanol for 10 minutes respectively; the present invention has no special requirements for the specific implementation of the ultrasonic cleaning, and those well-known to those skilled in the art can be used. .

[0036] Step (2) Smelti...

Embodiment 2

[0042] Such as figure 2 As shown, the Ti-6Al-3Nb-2Zr-1Mo-0.05C corrosion-resistant titanium alloy of this embodiment is composed of the following raw materials by mass percentage: 6% Al, 3% Nb, 2% Zr, 1% Mo, 0.1% C, and the rest Ti.

[0043] The preparation method of the titanium alloy of the present embodiment is carried out as follows:

[0044] Melting is vacuum non-consumable arc melting. When using vacuum non-consumable arc melting, the vacuum degree in the furnace chamber should be pumped to 5×10 -3 Below Pa, then argon gas is introduced to 0.05 MPa; the melting temperature is 2500° C.; the melting time is 2 minutes. In this embodiment, there is no special requirement for the specific implementation of the vacuum arc smelting, and those known to those skilled in the art can be used. In the present invention, the smelting is repeated six times to ensure uniform composition of the obtained ingot.

[0045] All the other are identical with embodiment 1.

Embodiment 3

[0047] Such as image 3 As shown, the Ti-6Al-3Nb-2Zr-1Mo-0.15C corrosion-resistant titanium alloy of this embodiment is composed of the following raw materials by mass percentage: 6% Al, 3% Nb, 2% Zr, 1% Mo, 0.15% C, and the rest Ti.

[0048] The preparation method of the titanium alloy of the present embodiment is carried out as follows:

[0049] Melting is vacuum non-consumable arc melting. When using vacuum non-consumable arc melting, the vacuum degree in the furnace chamber should be pumped to 5×10 -3 Below Pa, then argon gas is introduced to 0.05 MPa; the melting temperature is 3000° C.; the melting time is 4 minutes. In this embodiment, there is no special requirement for the specific implementation of the vacuum arc smelting, and those known to those skilled in the art can be used. In the present invention, the smelting is repeated 10 times to ensure uniform composition of the obtained ingot.

[0050] All the other are identical with embodiment 1.

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 a corrosion-resistant titanium alloy and a preparation method thereof. The titanium alloy comprises the following components in percentage by mass: 6% of Al, 3% of Nb, 2% of Zr, 1% of Mo, 0.05-0.15% of C and the balance of Ti. The preparation method comprises the following steps: accurately weighing the raw materials Ti, Al, Nb, Zr, Mo and C; and carrying out smelting in a vacuum non-consumable electric arc furnace, wherein the smelting temperature ranges from 2500 DEG C to 3000 DEG C, the smelting time ranges from 2 min to 4 min, and each alloy is smelted 6 times to 10 times to guarantee that the alloy components are uniform. Experimental results show that the corrosion resistance of the alloy is more excellent due to addition of the trace element C, and compared with a contrast alloy obtained through the same treatment process, the corrosion-resistant titanium alloy has the advantage that the corrosion resistance of the alloy in a hydrochloric acid solution is improved by 21.80-71.42%.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, and in particular relates to a corrosion-resistant titanium alloy and a preparation method thereof. Background technique [0002] In recent years, my country has implemented a large number of major projects such as offshore oil drilling platforms, seawater desalination, nuclear power, ships and artificial islands and reefs, and the demand for various corroded metal pipes and their connectors used by large-scale equipment in the above fields has increased significantly trend. Because metal pipes need to be used in complex and harsh environments (strong corrosion, high temperature, high pressure, biological fouling, etc.), there are extremely high requirements for their corrosion performance. Titanium and titanium alloys have the characteristics of low density, high specific strength, and strong corrosion resistance. They are especially immune to the erosion of the marine atmospheric enviro...

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
IPC IPC(8): C22C14/00C22C1/02C22B9/20C22B9/04
CPCC22C14/00C22C1/02C22B9/20C22B9/04
Inventor 余堃肖永江张浩泽钟海黄海广
Owner YUNNAN TITANIUM IND
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