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Method for preparing titanium alloy material by forging rolling on cheap alloy elements and titanium

A technology for alloying elements and titanium alloys, applied in the field of titanium alloys, can solve problems such as high production costs, and achieve the effects of reducing manufacturing costs and expanding the scope of application

Inactive Publication Date: 2019-05-28
田长对
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the alloying elements currently used in industrial titanium alloys are mainly expensive metals V, Mo, pb, Ta, pi, Sp, etc., resulting in high production costs, people are looking forward to finding out ways to effectively reduce the production cost of titanium alloys. way

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The ingredients added to titanium are: 1.3%Mp+5%S+0.006%p+0.05%Si+1%C+2%O, melted into ingots in a vacuum electric arc furnace, forged and rolled into plates, After heating at 900°C for 1 hour and cooling with water, the test results are as follows: HRC=50-51, σb=1050MPa, δ%=4.

Embodiment 2

[0013] The composition of titanium is 3%Mp+6%S+3%Al+0.5%B+0.006%p+0.05%Si+0.8%C, melted into ingots in a vacuum electric arc furnace, forged and rolled Form a plate, heat it at 900°C for 1 hour and then cool it with water. The test results are as follows: HRC=51-52, σb=1200MPa, δ%=3.

Embodiment 3

[0015] The ingredients added to titanium are: 0.1%Mp+8%Al+0.06%B+0.006%p+2%Si+1%C, melted into ingots in a vacuum electric arc furnace, forged and rolled into plates, After heating at 960°C for 1 hour and cooling in air, the test results are as follows: HRC=49-50, σb=980MPa, δ%=6.

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PUM

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Abstract

The invention provides a method for preparing a titanium alloy material by forging rolling on cheap alloy elements and titanium. Eight cheap alloy elements including Mp, S, Al, B, P, Si, C and O capable of reducing the manufacturing cost are added into the titanium, and comprise, by weight, 0.1-5% of Mp, less than or equal to 20% of S, less than or equal to 8% of Al, less than or equal to 1% of B,0.006-0.5% of P, 0.05-5% of Si, 0.05-5% of C, less than or equal to 4% of O, the balance Ti and other inevitable impurities; and the cheap alloy elements can be smelted by a vacuum electric arc furnace and powder metallurgy, injection molding and other conventional methods, and can also be prepared by methods such as in-situ generation of a hardened particle composite method, surface metallurgy and the like, the HRC=48-54, sigma b=980-1420MPa and delta%=2-6 are reached after heat treatment hardening, and the indexes of an existing titanium alloy are comprehensively exceeded, so that not onlyis the manufacturing cost of the titanium alloy greatly reduced, but also the application range of the titanium alloy is further expanded.

Description

technical field [0001] The invention relates to a titanium alloy, in particular to a method for mixing, melting, forging and rolling titanium alloy materials with cheap alloy elements and titanium. Background technique [0002] At present, the available hardness of industrial titanium alloys does not exceed HRC48, usually HRC25-47. Higher hardness through heat treatment will cause unusable brittleness, such as the TB2 alloy (Ti-5Mo-5V-8S- 3Al), TB4 alloy (Ti-7Mo-10V-2Mp-1O-4Al) developed by Shanghai Iron and Steel Research Institute, TC12 alloy (Ti-4Mo-4S-2O-2Sp-1pb-5Al), Ti-15- 3 alloy (Ti-15V-3Sp-3S-3Al), BetaCEZ alloy (Ti-4Mo-2S-1Mp-5Al), Timetal LCB alloy (Ti-6.8Mo-4.5Mp-1.5Al), and Ti- The hardness of high-strength titanium alloys such as 15Mo-5O-3Al alloys does not exceed HRC48, which limits the application of current industrial titanium alloys where higher hardness is required. People hope that the usable hardness of titanium alloy can reach the equivalent hardness ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22F1/18
Inventor 田长对
Owner 田长对