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

Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and preparation method thereof

A ti-al-zr-mo-v, titanium alloy technology, applied in the field of Ti-Al-Zr-Mo-V series medium-strength high-plastic titanium alloy and its preparation, can solve the problem of poor uniform plastic deformation ability and dimensional accuracy Difficult to control, difficult plastic processing and forming, etc., to achieve the effect of good strength and plasticity, favorable deformation and increased plasticity

Active Publication Date: 2016-02-10
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above data, it can be seen that the plasticity of TC4 alloy is relatively low, the ability of uniform plastic deformation is poor, the plastic forming is difficult, and the dimensional accuracy is difficult to control. These problems limit the processing and forming of TC4 titanium alloy to a certain extent and affect its wide application.

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
  • Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and preparation method thereof
  • Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and preparation method thereof
  • Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to the following formula: Al4.96wt%, Zr2.01wt%, Mo3.05wt%, V1.96wt%, the balance is Ti and unavoidable impurities, prepare electrodes, carry out 3 times of vacuum consumable smelting to obtain ingots, measure The phase transition point of the obtained alloy is 915°C. After the forging is completed, the forgings are sampled, held at 875°C, 825°C, 770°C, 720°C, and 670°C for 1 hour, then air-cooled, and then processed into experimental samples for tensile performance testing. Tensile properties at different heat treatment temperatures figure 1 It can be seen from the figure that the strength and plasticity of the alloy after heat treatment can reach the design target. Select 0.01s -1 ,0.1s -1 ,1s -1 ,10s -1 ,20s -1 These five sets of strain rates were subjected to room temperature compression tests on the Gleeble testing machine, and the room temperature strain rate sensitivity index m was measured as shown in Table 1, and its m value was significantly grea...

Embodiment 2

[0034] According to the following formula: Al4.98wt%, Zr0.98wt%, Mo2.03wt%, V1.02wt%, the balance is Ti and unavoidable impurities, prepare electrodes, carry out 3 times of vacuum consumable smelting to obtain ingots, measure The phase transition point of the obtained alloy is 955°C. After the forging is completed, the forgings are sampled, held at 925°C, 875°C, 835°C, 770°C, and 720°C for 1 hour, then air-cooled, and then processed into experimental samples for tensile performance testing. Tensile properties at different heat treatment temperatures figure 2 It can be seen from the figure that the strength and plasticity of the alloy after heat treatment can reach the design target. Select 0.01s -1 ,0.1s -1 ,1s -1 ,10s -1 ,20s -1 These five sets of strain rates were subjected to room temperature compression tests on the Gleeble testing machine, and the room temperature strain rate sensitivity index m was measured as shown in Table 1, and its m value was significantly gre...

Embodiment 3

[0036] According to the following formula: Al4.08wt%, Zr2.96wt%, Mo3.13wt%, V1.08wt%, the balance is Ti and unavoidable impurities, prepare electrodes, carry out 3 times of vacuum consumable smelting to obtain ingots, measure The phase transition point of the obtained alloy is 915°C. After the forging is completed, the forgings are sampled, held at 885°C, 835°C, 770°C, 720°C, and 670°C for 1 hour, then air-cooled, and then processed into experimental samples for tensile performance testing. Tensile properties at different annealing temperatures as image 3 It can be seen from the figure that the strength and plasticity of the alloy after heat treatment can reach the design target. Select 0.01s -1 ,0.1s -1 ,1s -1 ,10s -1 ,20s -1 These five sets of strain rates were subjected to room temperature compression tests on the Gleeble testing machine, and the room temperature strain rate sensitivity index m was measured as shown in Table 1, and its m value was significantly greate...

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 discloses a Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and a preparation method thereof, and belongs to the technical field of titanium alloy materials. The titanium alloy comprises, by weight, 3.0%-5.0% of Al, 1.0%-3.5% of Zr, 2.0%-4.5% of Mo, 1.0%-3.5% of V, and the balance Ti and unavoidable impurity elements. According to the Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy and the preparation method thereof, the Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy is obtained by adding the alloy elements of Mo and Zr and adjusting the proportion of Al equivalent weight and Mo equivalent weight properly, the extension strength of the Ti-Al-Zr-Mo-V system medium-strength high-plasticity titanium alloy is 800 MPa to 1000 MPa, and the extension rate is greater than 18%; the strength and the plasticity are matched well, and excellent machinability and excellent cold-forming performance are obtained.

Description

Technical field: [0001] The invention relates to the technical field of titanium alloy materials, in particular to a Ti-Al-Zr-Mo-V series medium-strength high-plasticity titanium alloy and a preparation method thereof. Background technique: [0002] Due to its high specific strength and good corrosion resistance, titanium alloys have very important applications in the aerospace field. Among them, titanium alloys with a tensile strength in the range of 700MPa-1000MPa are usually defined as medium-strength titanium alloys. They have good comprehensive properties, not only high strength, but also sufficient plasticity and excellent welding performance. TC4 (Ti-6Al-4V), as the most widely used medium-strength titanium alloy, is mainly used in the aviation industry to manufacture fans and compressor discs and blades of engines, as well as important bearings such as beams, joints and bulkheads in aircraft structures. force components. According to the national standard GB / T2965-...

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): C22C14/00C22F1/18
Inventor 彭霜吉海宾邱建科雷家锋刘羽寅
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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