Effect of Nano-sized TiB<sub>2</sub> on Microstructure and Ambient Compressive Properties of the TiAl Alloys

Dai Shang; Liu Xinwang; Fan Zitian; Jiang Wenming; Liu Fuchu

doi:10.15980/j.tzzz.2017.06.019

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Effect of Nano-sized TiB₂ on Microstructure and Ambient Compressive Properties of the TiAl Alloys
Vol. 37, Issue 6, Pages: 650-653(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.06.019

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[1]戴尚,刘鑫旺,樊自田,蒋文明,刘富初.纳米TiB_2对TiAl合金微观组织及室温压缩性能的影响[J].特种铸造及有色合金,2017,37(06):650-653.

Dai Shang, Liu Xinwang, Fan Zitian, et al. Effect of Nano-sized TiB₂ on Microstructure and Ambient Compressive Properties of the TiAl Alloys. [J]. Special Casting & Nonferrous Alloys 37(6):650-653(2017)
[1]戴尚,刘鑫旺,樊自田,蒋文明,刘富初.纳米TiB_2对TiAl合金微观组织及室温压缩性能的影响[J].特种铸造及有色合金,2017,37(06):650-653. DOI： 10.15980/j.tzzz.2017.06.019.

Dai Shang, Liu Xinwang, Fan Zitian, et al. Effect of Nano-sized TiB₂ on Microstructure and Ambient Compressive Properties of the TiAl Alloys. [J]. Special Casting & Nonferrous Alloys 37(6):650-653(2017) DOI： 10.15980/j.tzzz.2017.06.019.

摘要

采用纳米TiB

作为增强相

研究了其对TiAl合金室温力学性能和微观组织的影响。采用行星球磨机混粉

SPS烧结制备了Ti-46Al-xTiB

（x=0、0.5、1.0、1.5

体积分数）

并测试了其室温压缩性能。结果表明

当纳米TiB

含量为0.5%时

TiAl复合材料的力学性能显著提高

与Ti-46Al合金相比提高了71.2%和37.5%

这是因为纳米TiB

对TiAl产生晶粒细化的作用。但随着纳米TiB

的增加

其团聚也越发严重

并且纳米TiB

主要集中在晶界处

可能对基体产生割裂作用

这会降低材料的力学性能。

Abstract

With the addition of nano-TiB

Ti-46Al-xTiB

（ x = 0

0. 5

1. 0

1. 5

in volume fraction） was prepared by planetary ball combined with SPS sintering method. The mechanical properties

microstructure and ambient compressive behavior of the alloy prepared were investigated. The results show that Ti Al alloy exhibits the relatively excellent mechanical properties

such as tensile strength of 1 543 MPa and elongation of 19. 4% with0. 5% TiB

which are increased by 71. 2% and 37. 5%

compared with those of Ti-6Al alloy

respectively. It is attributed to the refinement effects of nano-TiB

particle on the Ti Al alloy. However

with the increase of TiB

the nano-TiB

exhibits more and more serious segregation in grain boundary

which in turn deteriorates the mechanical propertie as a result of cutting effects on the matrix.

关键词

纳米TiB2TiAl复合材料室温压缩SPS烧结

Keywords

Nano-Sized TiB2TiAl CompositesAmbient CompressionSpark Plasma Sintering

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Effects of Al Addition on Mechanical Properties of Cu-Zr-Ti Based Bulky Amorphous Alloy

Microstructure Evolution and Mechanical Properties of As-cast Ti-47Al（W,Si）Alloys

Effect of Nano-sized TiB2 on Microstructure and Ambient Compressive Properties of the TiAl Alloys

DOI： 10.15980/j.tzzz.2017.06.019

摘要

Abstract

关键词

Keywords

references

Effect of Nano-sized TiB₂ on Microstructure and Ambient Compressive Properties of the TiAl Alloys