TiC-Ti-Al-CNTs体系原位制备Ti<sub>2</sub>AlC增强钛铝基复合材料

余宁; 冯小明; 艾桃桃; 邹祥宇; 李文虎; 袁新强

doi:10.15980/j.tzzz.2015.09.021

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TiC-Ti-Al-CNTs体系原位制备Ti₂AlC增强钛铝基复合材料
In Situ Ti-Al Matrix Composites Reinforced by Ti₂AlC Prepared in TiC-Ti-Al-CNTs System
2015年35卷第9期页码：970-972
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.09.021

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[1]余宁,冯小明,艾桃桃,邹祥宇,李文虎,袁新强.TiC-Ti-Al-CNTs体系原位制备Ti_2AlC增强钛铝基复合材料[J].特种铸造及有色合金,2015,35(09):970-972.

Yu Ning, Feng Xiaoming, Ai Taotao, et al. In Situ Ti-Al Matrix Composites Reinforced by Ti₂AlC Prepared in TiC-Ti-Al-CNTs System[J]. Special Casting & Nonferrous Alloys, 2015,35(9):970-972.
[1]余宁,冯小明,艾桃桃,邹祥宇,李文虎,袁新强.TiC-Ti-Al-CNTs体系原位制备Ti_2AlC增强钛铝基复合材料[J].特种铸造及有色合金,2015,35(09):970-972. DOI： 10.15980/j.tzzz.2015.09.021.

Yu Ning, Feng Xiaoming, Ai Taotao, et al. In Situ Ti-Al Matrix Composites Reinforced by Ti₂AlC Prepared in TiC-Ti-Al-CNTs System[J]. Special Casting & Nonferrous Alloys, 2015,35(9):970-972. DOI： 10.15980/j.tzzz.2015.09.021.

摘要

利用TiC-Ti-Al-CNTs体系的原位热压技术制备Ti2AlC增强的钛铝基复合材料。借助XRD和SEM分析不同配方对应产物的相组成、显微结构及性能。结果表明

由于CNTs的掺杂消耗了Ti

导致形成的产物组成不同。对于Ti2AlC/TiAl基复合材料

Ti2AlC增强相呈颗粒状分布

Ti2AlC含量低时

综合性能较好;对于Ti2AlC/TiAl3基复合材料

由于形成了搭接层状结构

弯曲强度和断裂韧度分别为290.97MPa和5.08MPa·m1/2

较TiAl3合金分别提高了79.62%和154%。

Abstract

Ti2AlC reinforced titanium aluminide composites were fabricated successfully by in situ hot pressing technique in TiC-Ti-Al-CNTs system.The phase composition

microstructure and mechanical properties of the composites prepared were investigated by XRD and SEM.The results show that CNTs can consume Ti element

which results in different phase composition in the products.For Ti2AlC/TiAl composites

Ti2 AlC reinforcements exhibit particle morphology

and the composite with lower Ti2 AlC content has better comprehensive properties.For Ti2AlC/TiAl3 composites

the structure presents overlap joint lamellar structure

and the flexural strength and fracture toughness reach 290.97 MPa and 5.08MPa·m1/2

respectively

increased by 79.62% and by 154%

compared with those of the TiAl3 alloy.

关键词

金属间化合物Ti2AlC微观结构力学性能

Keywords

IntermetallicsTi2AlCMicrostructureMechanical Properties

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TiC-Ti-Al-CNTs体系原位制备Ti2AlC增强钛铝基复合材料

In Situ Ti-Al Matrix Composites Reinforced by Ti2AlC Prepared in TiC-Ti-Al-CNTs System

DOI： 10.15980/j.tzzz.2015.09.021

摘要

Abstract

关键词

Keywords

references

TiC-Ti-Al-CNTs体系原位制备Ti₂AlC增强钛铝基复合材料

In Situ Ti-Al Matrix Composites Reinforced by Ti₂AlC Prepared in TiC-Ti-Al-CNTs System