Compression-compression fatigue performance of aluminium matrix composite foams reinforced by carbon nanotubes

被引：17

作者：

Yang, Xudong ^{[1
]}

Hu, Qi ^{[1
]}

Li, Weiting ^{[2
]}

Song, Haipeng ^{[1
]}

Zou, Tianchun ^{[3
]}

Zong, Rongrong ^{[4
]}

Sha, Junwei ^{[2
]}

He, Chunnian ^{[2
]}

Zhao, Naiqin ^{[2
]}

机构：

[1] Civil Aviat Univ China, Sino European Inst Aviat Engn, Tianjin 300300, Peoples R China

[2] Tianjin Univ, Sch Mat Sci & Engn, Tianjin, Peoples R China

[3] Civil Aviat Univ China, Coll Airworthiness, Tianjin, Peoples R China

[4] Tianjin Jinliyan Automobile Engn & Technol Co Ltd, Inst New Technol, Tianjin, Peoples R China

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2020年 / 43卷 / 04期

关键词：

carbon nanotubes; fatigue performance; porous materials; quasi-static compression; MECHANICAL-PROPERTIES; ENERGY-ABSORPTION; CNT CONTENT; BEHAVIOR; POWDER; FABRICATION; METALLURGY; STRENGTH;

D O I：

10.1111/ffe.13159

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The compression-compression fatigue performance of carbon nanotube (CNT) reinforced aluminium matrix composite foams (AMCFs) were investigated. The epsilon-N curves of AMCFs are composed of three stages (the elastic, strain hardening, and rapid accumulation stages), while the fatigue strain of AMCFs accumulates very rapidly in stage III compared with Al foams. The fatigue strength of AMCFs with CNT contents of 2.0, 2.5, and 3.0 wt% increases by 6%, 44%, and 102% than Al foams, respectively. Different from Al foams' deformation of layer-by-layer, the main failure modes of AMCFs are the brittle fracture and collapse of pores within significant shear deformation bands under fatigue loading. The uniform distribution of CNTs and good interfacial bonding of CNTs and Al matrix is the important factor for the improvement of fatigue properties of AMCFs.

引用

页码：744 / 756

页数：13

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