Mechanical properties and abrasive wear behaviors of in situ nano-TiCx/Al-Zn-Mg-Cu composites fabricated by combustion synthesis and hot press consolidation
Mechanical properties and abrasive wear behaviors of in situ nano-TiCx/Al-Zn-Mg-Cu composites fabricated by combustion synthesis and hot press consolidation
复制标题
燃烧合成热压固结原位纳米TiCx/Al-Zn-Mg-Cu复合材料的力学性能和磨料磨损行为
DOI：
10.1016/j.acme.2017.06.009
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发表时间：
2018-01-01
影响因子：
4.4
通讯作者：
Jiang, Qi-Chuan
中科院分区：
文献类型：
--
作者：
Gao, Yu-Yang;Qiu, Feng;Jiang, Qi-Chuan
采用燃烧合成法和热压固结法在Al-Ti-C/CNTs体系中制备了不同TiCx含量(20、25和30%)的原位纳米TiCx/Al-锌-镁-铜复合材料。复合材料的压缩性能和耐磨粒磨损性能随TiCx含量的增加而提高。在Al-Ti-C/CNTs体系中，碳源由纯炭黑转变为炭黑和碳纳米管的混合物后，复合材料的压缩性能和耐磨性显著提高，TiCx颗粒的平均尺寸显著减小。以碳纳米管为碳源合成的纳米TiCx颗粒平均尺寸为81 nm，屈服强度、极限压缩强度和断裂应变分别达到597 Mpa、882 Mpa和21.7%。(C)2017年Politechnika Wroclawska。作者：Elsevier Sp.ZO.O。版权所有。
The in situ nano-TiCx/Al-Zn-Mg-Cu composites with different TiCx content (20, 25 and 30 vol.%) were successfully fabricated by combustion synthesis and hot press consolidation in Al-Ti-C/CNTs systems. The compressive properties and abrasive wear resistance of the composites improved with the increase in the TiCx content. The transformation of carbon source from pure C black to the mixture of C black and CNTs to pure CNTs in Al-Ti-C/CNTs systems leaded to a significant improvement in the compressive properties and wear resistance of the composites as well as a significant decrease in the average size of TiCx particles. The average size of the nano-TiCx particles in 30 vol.% TiCx/Al-Zn-Mg-Cu composite synthesized by the carbon source of CNTs reached 81 nm, moreover, the yield strength (sigma(0.2)), the ultimate compression strength (sigma(UCS)) and the fracture strain (epsilon(f)) of the composite reached 597 MPa, 882 MPa and 21.7%, respectively. (C) 2017 Politechnika Wroclawska. Published by Elsevier Sp. z o.o. All rights reserved.