Method for preparing ordered porous TC4 alloy

A technology of alloys and alloy powders, applied in the field of ordered porous titanium alloys, can solve the problems of disconnected pores, disordered pores, small pores, etc., and achieve the effects of ensuring excellent performance, shortening the production process, and optimizing pore morphology

Active Publication Date: 2018-08-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the problem that the pores in the traditional production method of using pore-forming agents (ammonium bicarbonate, zinc st

Method used

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  • Method for preparing ordered porous TC4 alloy
  • Method for preparing ordered porous TC4 alloy
  • Method for preparing ordered porous TC4 alloy

Examples

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Example Embodiment

[0019] Example 1

[0020] Material name: ordered porous TC4 alloy

[0021] Material specifications: 60mm×Φ150mm cylindrical ordered porous TC4 alloy

[0022] Chemical composition (mass percentage): Ti element mass percentage is 90%, Al element mass percentage is 6% and V element mass percentage is 4%.

[0023] Experimental equipment: planetary high-energy ball mill, vacuum hot pressing sintering furnace.

[0024] Such as figure 1 As shown, the specific preparation process steps:

[0025] (1) Raw material preparation: According to the standard composition ratio of Ti-6Al-4V alloy, weigh 325 mesh TiH 2 Powder, Al-V alloy powder, TiH 2 Both powder and Al-V alloy powder are commercially available, the same below, and mixed to obtain mixed powder;

[0026] (2) In the mixed powder of step (1), add the acetone solution of the template agent of 5% of the mixed powder mass to obtain the mixture, wherein the template agent is BHPA (2,2-dimethylolpropionic acid), and the template agent acetone solut...

Example Embodiment

[0030] Example 2

[0031] Material name: ordered porous TC4 alloy

[0032] Material specifications: 60mm×Φ150mm cylindrical ordered porous TC4 alloy

[0033] Chemical composition (mass percentage): Ti element mass percentage is 90%, Al element mass percentage is 6% and V element mass percentage is 4%.

[0034] Experimental equipment: planetary high-energy ball mill, vacuum hot pressing sintering furnace.

[0035] Specific preparation process steps:

[0036] (1) Raw material preparation: According to the standard composition ratio of Ti-6Al-4V alloy, weigh 400 mesh TiH 2 Powder, Al-V alloy powder, and mixing to obtain mixed powder;

[0037] (2) In the mixed powder of step (1), 10% of the mass of the mixed powder is added to the template agent acetone solution to obtain the mixture, wherein the template agent is BHPA (2,2-dimethylolpropionic acid), and the template agent acetone solution is A mixture of BHPA (2,2-dimethylolpropionic acid) dissolved in acetone at a mass ratio of 1:7;

[0038...

Example Embodiment

[0041] Example 3

[0042] Material name: ordered porous TC4 alloy

[0043] Material specifications: 60mm×Φ150mm cylindrical ordered porous TC4 alloy

[0044] Chemical composition (mass percentage): Ti element mass percentage is 90%, Al element mass percentage is 6% and V element mass percentage is 4%.

[0045] Experimental equipment: planetary high-energy ball mill, vacuum hot pressing sintering furnace.

[0046] Such as figure 1 As shown, the specific preparation process steps:

[0047] (1) Raw material preparation: According to the standard composition ratio of Ti-6Al-4V alloy, weigh 400 mesh TiH 2 Powder, Al-V alloy powder, and mixing to obtain mixed powder;

[0048] (2) In the mixed powder of step (1), 15% of the mixed powder mass is added to the template acetone solution to obtain the mixture, wherein the template is BHPA (2,2-dimethylolpropionic acid), and the template is the acetone solution. A mixture of BHPA (2,2-dimethylolpropionic acid) dissolved in acetone at a mass ratio of ...

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Abstract

The invention discloses a method for preparing an ordered porous TC4 alloy. TiH2 powder and Al-V alloy powder are mixed according to the standard ingredient proportion of the TC4 alloy, a template agent acetone solution is added, and high-energy ball milling is carried out; then vacuum hot pressing sintering is carried out, and finally the ordered porous TC4 alloy is obtained. According to the method, the template agent and the TiH2 powder, multiple ordered holes can be formed in the sintering process, holes in the alloy and the surface of the alloy can be effectively cleaned through hydrogenreleased by TiH2 in the dehydrogenation process, the good performance of the produced product is guaranteed, and the production process of the product is effectively shortened; and the pore morphologyof the titanium alloy is reasonably improved and optimized.

Description

technical field [0001] The invention belongs to the technical field of ordered porous titanium alloys, and specifically relates to the use of BHPA, TiH 2 A method for preparing ordered porous TC4 alloy by vacuum hot pressing sintering. Background technique [0002] TC4 alloy, namely Ti-6Al-4V alloy, is an α+β two-phase titanium alloy with low density, high specific strength, good heat and corrosion resistance, biocompatibility and good comprehensive mechanical properties. (α+β) is the most widely used two-phase titanium alloy. It was successfully developed by the American IIlinois Technology Institute in 1954. Its application rate accounts for 50% of the total output of titanium alloys and 95% of all titanium alloy processed parts. , has become a common titanium alloy in the world, and its porous products have been used as biological materials. In order to ensure the internal growth of new bone cell tissue and the good transmission of body fluids, it is required that the ma...

Claims

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Application Information

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IPC IPC(8): C22C1/08C22C14/00B22F3/14
CPCB22F3/1125B22F3/1143B22F3/14B22F2003/145C22C14/00
Inventor 张家敏王静哲易健宏甘国友刘意春李凤仙谈松林杨军杜立辉杨开雄
Owner KUNMING UNIV OF SCI & TECH
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