Temperature dependent strengthening mechanisms and yield strength for CNT/metal composites

被引：38

作者：

Zhang, Xuyao ^{[1
,2
]}

Li, Weiguo ^{[1
,2
]}

Ma, Jianzuo ^{[1
,2
]}

Li, Ying ^{[2
]}

Deng, Yong ^{[2
]}

Yang, Mengqing ^{[2
]}

Zhou, Yubo ^{[3
]}

Zhang, Xin ^{[2
]}

Dong, Pan ^{[2
]}

机构：

[1] State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China

[2] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China

[3] Chongqing Nankai Middle Sch, Chongqing 400030, Peoples R China

来源：

COMPOSITE STRUCTURES | 2020年 / 244卷

基金：

中国国家自然科学基金;

关键词：

CNT/metal composites; High-temperature; Yield strength; Strengthening mechanisms; CARBON NANOTUBE; THEORETICAL PREDICTION; FAILURE MECHANISMS; TENSILE PROPERTIES; MATRIX COMPOSITES; YOUNGS MODULUS; BEHAVIOR; ENERGY; MODEL; DEFORMATION;

D O I：

10.1016/j.compstruct.2020.112246

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Strengthening mechanisms in CNT/metal composites are significant guidelines on composites design. However, the strengthening mechanisms at high temperatures have few been reported. In this work, the evolution of four common strengthening mechanisms in CNT/metal composites, including load transfer strengthening, grain refinement strengthening, enhanced dislocation density strengthening and Orowan strengthening, with temperature was investigated by our developed theoretical models. Then by considering those temperature dependent strengthening mechanisms, a temperature dependent yield strength model for CNT/metal composites was established. Further, the effects of residual thermal stress and quicker softening of matrix on the temperature dependent yield strength of composites were also taken into account. Good agreement is obtained between the model predictions and available experimental results. This study contributes a simple method to predict the yield strength for CNT/metal composites over a wide range of temperatures. In addition, the contribution of each strengthening mechanism to the yield strength of composites at different temperatures was extensively discussed. Some useful suggestions for the design of new CNT/metal composites with high yield strength at elevated temperatures were provided.

引用

页数：7

共 37 条

[1] Length effect of carbon nanotubes on the strengthening mechanisms in metal matrix composites [J].

Chen, B. ;

Shen, J. ;

Ye, X. ;

Jia, L. ;

Li, S. ;

Umeda, J. ;

Takahashi, M. ;

Kondoh, K. .

ACTA MATERIALIA, 2017, 140 :317-325

[2] Effect of Temperature on Elastic Properties of Single-Walled Carbon Nanotubes [J].

Chen, X. ;

Wang, X. ;

Liu, B. Y. .

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, 2009, 28 (05) :551-569

[3]

Chen Y, 2015, J MECH PHYS SOLIDS, V84

[4] Size- and edge-effect cohesive energy and shear strength between graphene, carbon nanotubes and nanofibers: Continuum modeling and molecular dynamics simulations [J].

Chen, Yinfeng ;

Ding, Dongqing ;

Zhu, Chunhua ;

Zhao, Junhua ;

Rabczuk, Timon .

COMPOSITE STRUCTURES, 2019, 208 :150-167

[5] Grain size effect on the strengthening behavior of aluminum-based composites containing multi-walled carbon nanotubes [J].

Choi, H. J. ;

Shin, J. H. ;

Bae, D. H. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2011, 71 (15) :1699-1705

[6] Differential quadrature method for thermal shock analysis of CNT reinforced metal-ceramic functionally graded disc [J].

Daviran, Samaneh ;

Mohasseb, Sassan ;

Kasaeian, Alibakhsh ;

Mahian, Omid .

COMPOSITE STRUCTURES, 2017, 161 :299-307

[7] A quantitative understanding on the mechanical behaviors of carbon nanotube reinforced nano/ultrafine-grained composites [J].

Dong, Shuhong ;

Zhou, Jianqiu ;

Hui, David .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2015, 101 :29-37

[8] Strength and failure mechanisms of cnt-reinforced copper nanocomposite [J].

Faria, Bruno ;

Guarda, Catia ;

Silvestre, Nuno ;

Lopes, Jose N. C. ;

Galhofo, Diogo .

COMPOSITES PART B-ENGINEERING, 2018, 145 :108-120

[9] Hysteretic damping optimization in carbon nanotube nanocomposites [J].

Formica, Giovanni ;

Milicchio, Franco ;

Lacarbonara, Walter .

COMPOSITE STRUCTURES, 2018, 194 :633-642

[10] Strengthening in carbon nanotube/aluminium (CNT/Al) composites [J].

George, R ;

Kashyap, KT ;

Raw, R ;

Yamdagni, S .

SCRIPTA MATERIALIA, 2005, 53 (10) :1159-1163

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