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SPS sintering particle enhanced Ti-Al-Sn-Zr serial high-temperature-resistant titanium-based composite material and preparation method thereof

A titanium-based composite material and particle reinforcement technology, which is applied in the field of composite material preparation, can solve the problems of complicated preparation process of reinforcement and matrix material wettability, large porosity of composite material, and expensive addition method, etc., and achieves high-temperature oxidation resistance. meet the demand for flexible materials, improve the molding quality, and improve the effect of high temperature oxidation resistance

Active Publication Date: 2021-08-20
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, continuous reinforced titanium matrix composites have obvious anisotropy, and the performance is greatly affected
[0003] The main preparation methods of discontinuous titanium matrix composites are divided into external method and in-situ generation method. The external method is expensive and needs to consider the wettability between the reinforcement and the matrix material. The preparation process is complicated and not widely used.
The in-situ generation method includes melting casting method, mechanical alloying method, high temperature self-propagating synthesis method, powder metallurgy method, etc. The melting casting method is the earliest method for the preparation of metal matrix composites. The preparation process is simple but the performance of the prepared composite material is poor; mechanical The size of the reinforcement prepared by the alloying method is fine, but the material is unstable and prone to oxidation during the preparation process; the high-temperature self-propagating synthesis method has high preparation efficiency, but the prepared composite material has a large porosity and low performance

Method used

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  • SPS sintering particle enhanced Ti-Al-Sn-Zr serial high-temperature-resistant titanium-based composite material and preparation method thereof
  • SPS sintering particle enhanced Ti-Al-Sn-Zr serial high-temperature-resistant titanium-based composite material and preparation method thereof
  • SPS sintering particle enhanced Ti-Al-Sn-Zr serial high-temperature-resistant titanium-based composite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Based on Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si, configure the volume fraction of TMC powder to be 1vol.%B 4 C+5vol.%SiC p mixed powder, and to ensure that the total weight of reinforcement powder and matrix powder is 40g, 1vol.%B 4 C+5vol.%SiC p Put the powder into a ball mill jar and add an appropriate amount of absolute ethanol to carry out wet milling. The ball milling parameters are set at a ball-to-material ratio of 800:1, a speed of 300r / min, every 55min of ball milling, and a 5min shutdown. The total time of ball milling is 24h, so that B 4 C and SiC pThe powder is well dispersed.

[0030] Pour the Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si powder into the ball mill jar, and mix with the dispersed 1vol.%B 4 C+5vol.%SiC p —The ethanol solution continues to carry out wet milling, the speed is 300r / min, every 55 minutes of ball milling, stop for 5 minutes, the total time of ball milling is adjusted to 48h, so that Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-...

Embodiment 2

[0034] Based on Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si, the volume fraction of TMC powder is 5vol.%SiC w +5vol.%SiC p mixed powder, and to ensure that the total weight of reinforcement powder and matrix powder is 40g, 5vol.%SiC w +5vol.%SiC p Put the powder into a ball mill tank and add an appropriate amount of absolute ethanol to carry out wet milling. The ball milling parameters are set to a ball-to-material ratio of 800:1, a speed of 300r / min, every 55min of ball milling, and a 5min shutdown. The total time of ball milling is 24h, so that SiC w and SiC p The powder is well dispersed.

[0035] Pour the Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si powder into the ball mill jar, and mix with the dispersed 5vol.%SiC w +5vol.%SiC p —The ethanol solution continues to carry out wet milling, the speed is 300r / min, every 55min of ball milling is stopped for 5min, the total time of ball milling is adjusted to 48h, so that Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si powder...

Embodiment 3

[0039] Based on Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si, the volume fraction of TMC powder is 0.15vol.%GNPs+5vol.%SiC p mixed powder, and to ensure that the total weight of reinforcement powder and matrix powder is 40g, 0.15vol.%GNPs+5vol.%SiC p Put the powder into a ball mill tank and add an appropriate amount of absolute ethanol to perform wet milling. The ball milling parameters are set to a ball-to-material ratio of 800:1, a speed of 300r / min, every 55min of ball milling and a 5min shutdown, and the total time of ball milling is 24h, so that GNPs and SiC p The powder is well dispersed.

[0040] Pour the Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33Si powder into the ball mill jar, and mix with the dispersed 0.15vol.%GNPs+5vol.%SiC p —The ethanol solution continues to carry out wet milling, the rotating speed is 300r / min, every 55min of ball milling is stopped for 5min, the total time of ball milling is adjusted to 48h, so that Ti-6.01Al-3.90Sn-8.88Zr-1.16Nb-1.59Mo-0.33S...

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Abstract

The invention provides an SPS sintering particle enhanced Ti-Al-Sn-Zr serial high-temperature-resistant titanium-based composite material and a preparation method thereof and belongs to the technical field of preparation of composite materials. In the invention, the SiC / GNPs / B4C enhanced Ti-Al-Sn-Zr serial titanium powder high-temperature-resistant titanium-based composite material is prepared by adopting a powder metallurgy-spark plasma sintering process. The method is convenient to operate and low in cost. The obtained titanium-based composite material has excellent high-temperature oxidization resistance and has a wide application prospect in the fields of aerospace, biomedicine, ,marine engineering and the like.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to an SPS sintered particle reinforced Ti-Al-Sn-Zr series high-temperature-resistant titanium-based composite material and a preparation method thereof. Background technique [0002] Titanium alloys and their composite materials have excellent properties such as high heat resistance, good corrosion resistance, and low density, and are mainly used in the fields of automobiles, aerospace, petrochemicals, biomedicine, and marine engineering. In recent years, titanium-based composites have become a research hotspot for high-temperature structural materials due to their excellent high-temperature performance. The performance of titanium-based composites can be significantly improved by adding particles, whiskers, and fiber-reinforced phases to titanium-based composites. The body type can be divided into continuous reinforced titanium matrix composites a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C32/00B22F3/105C22C1/05
CPCC22C14/00C22C32/0052C22C32/0084C22C1/05B22F3/105B22F2003/1051
Inventor 李建伟彭仁周凯祥周玉华汝金明许晓静
Owner JIANGSU UNIV