Elevated temperature compressive properties and energy absorption response of in-situ grown CNT-reinforced Al composite foams

2017 ◽  
Vol 690 ◽  
pp. 294-302 ◽  
Author(s):  
Kunming Yang ◽  
Xudong Yang ◽  
Enzuo Liu ◽  
Chunsheng Shi ◽  
Liying Ma ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Energy Absorption ◽  
Compressive Properties ◽  
Composite Foams ◽  
Al Composite

Compressive Response and Energy Absorption Characteristics of In Situ Grown CNT-Reinforced Al Composite Foams

2017 ◽  
Vol 19 (12) ◽  
pp. 1700431 ◽  
Author(s):  
Xudong Yang ◽  
Kunming Yang ◽  
Jiwei Wang ◽  
Chunsheng Shi ◽  
Chunnian He ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Compressive Response ◽  
Composite Foams ◽  
Al Composite ◽  
Absorption Characteristics

Compressive properties and energy absorption of aluminum composite foams reinforced by in-situ generated MgAl 2 O 4 whiskers

2015 ◽  
Vol 645 ◽  
pp. 1-7 ◽  
Author(s):  
Cheng Guo ◽  
Tianchun Zou ◽  
Chunsheng Shi ◽  
Xudong Yang ◽  
Naiqin Zhao ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Compressive Properties ◽  
Aluminum Composite ◽  
Composite Foams

scholarly journals Synthesis of an Al-Based Composite Reinforced by Multi-Phase ZrB2, Al3BC and Al2O3 with Good Mechanical and Thermal Properties at Elevated Temperature

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4048
Author(s):  
Yihan Bian ◽  
Tong Gao ◽  
Yongfeng Zhao ◽  
Guiliang Liu ◽  
Xiangfa Liu
Keyword(s):  
Elevated Temperature ◽  
Elasticity Modulus ◽  
High Strength ◽  
Enhancement Effect ◽  
Mechanical And Thermal Properties ◽  
High Modulus ◽  
Synergistic Enhancement ◽  
Al Composite ◽  
Multi Phase

To synthesize Al composite with high strength at elevated temperature, high modulus and thermal stability, ZrB2, Al3BC and Al2O3 particles have been chosen as reinforcements simultaneously. A (9.2 wt.% ZrB2 + 5.6 wt.% Al3BC + 5.5 wt.% Al2O3)/Al composite has been prepared, and the in-situ synthesized particles are nano-sized. Mechanical property tests reveal that the nanoparticles exhibit a remarkable synergistic enhancement effect. The elasticity modulus of the composite is 89 GPa, and the ultimate tensile strengths at 25 °C and 350 °C can be as high as 371 MPa and 154 MPa, respectively.

Effect of Si content on microstructure and compressive properties of open-cell Mg composite foams reinforced by in-situ Mg2Si compounds

2020 ◽  
Vol 159 ◽  
pp. 110045 ◽  
Author(s):  
Jiaan Liu ◽  
Lianren Zhang ◽  
Shengjun Liu ◽  
Zhiwu Han ◽  
Zhiqiang Dong
Keyword(s):  
Compressive Properties ◽  
Open Cell ◽  
Composite Foams ◽  
Si Content

scholarly journals Influences of Increased Pressure Foaming on the Cellular Structure and Compressive Properties of In Situ Al-4.5%Cu-xTiB2 Composite Foams with Different Particle Fraction

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2612
Author(s):  
Zhengyi Niu ◽  
Zhentao An ◽  
Zhibao Jiang ◽  
Zhuokun Cao ◽  
Yang Yu
Keyword(s):  
Cell Wall ◽  
Energy Absorption ◽  
Cellular Structure ◽  
Cell Structure ◽  
Metallic Foams ◽  
Particle Fraction ◽  
Composite Foams ◽  
Tib2 Particles ◽  
Increased Pressure

Metallic foams have drawn increasing attention in applications ranging from lightweight structures to energy absorption devices. Mechanical properties of metallic foams depend on both their microstructure and cellular structure. In situ Al-4.5%Cu-xTiB2 composites were used as start materials for fabrication of closed-cell foams through liquid route under atmosphere pressure and increased pressure, aiming at simultaneously strengthening the cell wall material and optimizing the cellular structure. Macro-structural features of the foams were determined by micro X-ray computed tomography (µCT); results exhibit that increasing weight ratio of in situ TiB2 particles leads to coarsened cell structure for foams made under atmosphere pressure, due to the increase in critical thickness of cell wall rupture. Significant reduction of cell size and increase in cell circularity were observed for foams fabricated under increased pressure. Quasi static compression test results indicate that yield strength of foam samples increases with increasing particle fraction and refinement of cell structure. Microstructure observation shows that the continuous network at interdendritic regions consists of in situ TiB2 particles and intermetallic compounds are responsible for the reduced ductility of cell wall materials and the reduction in energy absorption efficiency of foams with high particle fraction. The influences of cell structure on the normalized strength and specific energy absorption were also discussed, and it was found that the improvement of yield strength and energy absorption of composite foams attributes to both the reinforcement of in situ TiB2 particles and the refinement of cellular structure.

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