Method for preparing ultra-high-strength titanium alloy porous material based on additive manufacturing technology

A porous material and ultra-high-strength technology, which is applied in the field of preparing ultra-high-strength titanium alloy porous materials based on additive manufacturing technology, can solve the problems of low density and ultra-high strength of porous titanium and titanium alloys, and achieves low cost and preparation technology. Simple, broad-spectrum effects

Active Publication Date: 2022-05-31
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing ultra-high-strength titanium alloy porous materials based on additive manufacturing technology, so as to solve the problem that porous titanium and titanium alloys in the prior art cannot have both low density and ultra-high strength

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  • Method for preparing ultra-high-strength titanium alloy porous material based on additive manufacturing technology
  • Method for preparing ultra-high-strength titanium alloy porous material based on additive manufacturing technology
  • Method for preparing ultra-high-strength titanium alloy porous material based on additive manufacturing technology

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[0050] For the Ti-24Nb-1Fe-6Sn-3Zr alloy, adjust the total amount of impurities O+N+H to be 0.35-0.50wt%. profit

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Abstract

The invention relates to the field of porous material preparation, in particular to a method for preparing ultra-high-strength titanium alloy porous material based on additive manufacturing technology. This method prepares a uniform porous titanium alloy material with adjustable unit cell size and pore shape through "selective laser melting forming technology". By optimizing the process parameters of additive manufacturing and selecting appropriate heat treatment, it can be obtained: the effective density is 0.5-2.0g / cm 3 , the strength can reach 600MPa, and the absorption energy can reach 90MJ / m 3 , A uniform porous titanium alloy bulk material with an elastic modulus of 0.1-20GPa. The method of the invention has simple preparation process and low cost, is suitable for industrialized production, and has good application prospects in the fields of aerospace lightweight design, medical treatment, energy absorption and shock absorption, filtration and the like.

Description

Method for preparing ultra-high strength titanium alloy porous material based on additive manufacturing technology Technical field: The present invention relates to the field of porous material preparation, in particular to the preparation of ultra-high-strength titanium composites based on additive manufacturing technology. Methods for gold porous materials. Background technique: Porous material is a dual-property engineering material with both structure and function, and also has Many excellent properties, especially high specific strength, light weight, good energy absorption, large specific surface area, sound absorption and permeability, etc. Widely used in aerospace lightweight design, medical, energy absorption and shock absorption and filtration fields. In the medical field, porous titanium has a lower elastic modulus than its dense bulk material, which can reach the The degree of matching the modulus can effectively avoid the "stress shielding" effect; the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C14/00C22C1/08B22F3/105B22F10/28B33Y70/00B33Y40/00
CPCC22C14/00C22C1/08B33Y70/00B33Y40/00B22F3/105B22F10/28A61L27/32A61L27/06C25D5/18Y02P10/25
Inventor 李述军任德春刘玉敬侯文韬马英杰郝玉琳杨锐
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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