Microstructure and Mechanical Properties of In-Situ Al<sub>3</sub>Ti/2024Al Composites Fabricated by Ultrasonic Casting

Chen Zengkui; Hu Nan; Han Fei; Qin Jin; Du Zhiming; Chen Gang

doi:10.15980/j.tzzz.2016.07.023

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Microstructure and Mechanical Properties of In-Situ Al₃Ti/2024Al Composites Fabricated by Ultrasonic Casting
Vol. 36, Issue 7, Pages: 747-751(2016)
Published： 2016 ，
DOI： 10.15980/j.tzzz.2016.07.023

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[1]陈增奎,胡南,韩飞,秦晋,杜之明,陈刚.超声铸造制备原位Al_3Ti/2024Al复合材料的性能[J].特种铸造及有色合金,2016,36(07):747-751.

Chen Zengkui, Hu Nan, Han Fei, et al. Microstructure and Mechanical Properties of In-Situ Al₃Ti/2024Al Composites Fabricated by Ultrasonic Casting. [J]. Special Casting & Nonferrous Alloys 36(7):747-751(2016)
[1]陈增奎,胡南,韩飞,秦晋,杜之明,陈刚.超声铸造制备原位Al_3Ti/2024Al复合材料的性能[J].特种铸造及有色合金,2016,36(07):747-751. DOI： 10.15980/j.tzzz.2016.07.023.

Chen Zengkui, Hu Nan, Han Fei, et al. Microstructure and Mechanical Properties of In-Situ Al₃Ti/2024Al Composites Fabricated by Ultrasonic Casting. [J]. Special Casting & Nonferrous Alloys 36(7):747-751(2016) DOI： 10.15980/j.tzzz.2016.07.023.

摘要

利用超声铸造法制备了原位Al

Ti颗粒增强的Al

Ti/2024Al复合材料

研究了Al

Ti含量对Al

Ti/2024Al复合材料微观组织、硬度、力学性能和耐磨性的影响。结果表明

随着Al

Ti含量增加

复合材料基体组织逐渐细化;但当Al

Ti含量超过12%时

复合材料致密度却显著降低;基体硬度和复合材料硬度都随Al

Ti含量增加而增大;Al

Ti含量为8%的2024Al复合材料的屈服强度和抗拉强度分别为357 MPa和446 MPa

相比铸态2024Al合金提升了38.5%和39.8%;复合材料的耐磨性随Al

Ti含量增加而逐渐提高。

Abstract

In situ Al

Ti particle reinforced 2024 Al alloy matrix composites（Al

Ti/2024Al）were prepared by ultrasonic casting.Effects of in-situ Al

Ti particle content on the microstructure

hardness

tensile performance and wear resistance of Al

Ti/2024 Al composites were investigated.The results indicate that with the increase of Al

Ti content

grain in the composites prepared is refined gradually.When the Al

Ti content is more than 12%

the density of the composites is decreased significantly.The hardness of the matrix and composites is increased with the increase of Al

Ti content.The yield strength and tensile strength of Al

Ti/2024 Al with 8% Al

Ti composites reach 357 MPa and 446 MPa

improved by 38.5% and 39.8% compared with those of as cast 2024 Al alloy

respectively.The wear resistance of the composites prepared is increased with increasing in Al

Ti content.

关键词

超声铸造原位Al3Ti颗粒铝基复合材料

Keywords

Ultrasonic CastingIn-situ Al3Ti ParticleAl Matrix Composites

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Microstructure and Mechanical Properties of In-Situ Al3Ti/2024Al Composites Fabricated by Ultrasonic Casting

DOI： 10.15980/j.tzzz.2016.07.023

摘要

Abstract

关键词

Keywords

references

Microstructure and Mechanical Properties of In-Situ Al₃Ti/2024Al Composites Fabricated by Ultrasonic Casting