Recent advances in the development of aerospace materials

Zhang, Xuesong; Chen, Yongjun; Hu, Junling

doi:10.1016/j.paerosci.2018.01.001

Cited by 793 publications

(238 citation statements)

References 117 publications

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“…in which,  is the Hamilton operator, which represents the gradient of the subsequent quantity; k  is the absolute permeability tensor in um 2 …”

Section: Mathematical Modelmentioning

confidence: 99%

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Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

Xin

et al. 2018

MATEC Web Conf.

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Abstract. In this paper, physical and numerical simulations were applied to investigate the polymer degradation performance and its effect on polymer enhanced oil recovery (EOR) efficiency in homogeneous reservoirs. Physical experiments were conducted to determine basic physicochemical properties of the polymer, including viscosity, rheology, and degradation. A new mathematical model was proposed, and an in-house simulator was designed to further explore polymer degradation. The results of the physical experiments illustrated that polymer could increase polymer solution viscosity significantly, and the relationship between polymer solution viscosity and polymer concentration exhibited a clear power law relationship. However, the viscosity of a polymer solution with the same polymer concentration decreased with an increase in the shear rate, showing shear thinning performance. Moreover, the viscosity decreased with an increase in time, which was caused by polymer degradation. The validation of the designed simulator was improved when compared to the simulation results using ECLIPSE V2013.1 software. The difference between 0 and 0.1 day -1 in the polymer degradation rate showed a decrease of 6% in oil recovery after 2,000 days, according to simulation results, which demonstrated that polymer degradation had an adverse effect on polymer flooding efficiency.

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“…in which,  is the Hamilton operator, which represents the gradient of the subsequent quantity; k  is the absolute permeability tensor in um 2 …”

Section: Mathematical Modelmentioning

confidence: 99%

“…They have been widely applied in medicine, aerospace, the chemical industry and other fields [1][2][3]. Polymers have played a significant role, especially in the chemical industry.…”

Section: Introductionmentioning

confidence: 99%

Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

Xin

et al. 2018

MATEC Web Conf.

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“…Aluminum Metal Matrix Composites (Al-MMC's) are now extensively used in automobile and aircraft industries. With the high desire for precision and dimensionally stable aircraft structure, the Al-MMC's have driven the development of new combinations of composites with more specific strength and wear resistance [1,2]. The first successful application of continuous fiber reinforced Boron-Al composite was developed in the form of tubular struts for the frame and rib truss member in the mid-fuselage section and the drag link of the space shuttle Orbiter.…”

Section: Introductionmentioning

confidence: 99%

Inspiration of reinforcements, manufacturing methods, and microstructural changes on wear behavior of metal matrix composites—a recent review

Hariharasakthisudhan¹,

Rajan

2020

Mater. Res. Express

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The Metal Matrix Composites (MMCs) are increasingly replacing the commercial alloys in engineering components and undergoing intense analysis in the development of advanced composite structures. The metal matrix composites exhibit superior mechanical and tribological behavior than alloys in wear critical applications. Profound research works have been carried out in manufacturing the MMCs for improved friction and wear behavior. This study highlights the recent investigations from the perspective of wear behavior of MMCs. The effect of reinforcements and manufacturing processes of composites on wear behavior is elaborated. The significance of mechanical factors such as normal load, sliding speed and sliding distance is explained. The wear mechanisms observed in MMCs and studies on sub surface damages of composites are reported.

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“…The aluminum-lithium alloys have attractive applications in the aerospace industry owing to their lower density, better strength and higher stiffness comparing to the conventionally commercial 2xxx and 7xxx series aluminum alloys [1][2][3][4][5][6][7][8]. However, insufficient plasticity, toughness and obvious anisotropy prevent their universal uptake [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of pre-deformation and artificial aging on fatigue life of 2198 Al-Li alloy

Zhang

Liang

et al. 2020

Mater. Res. Express

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The effects of pre-deformation and artificial aging on fatigue life of 2198 Al-Li alloy were explored to further reveal its fatigue behavior and improve the damage tolerance. Fatigue life was investigated on 2198-T3 alloy after pre-deformation and aging treatments. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to study the fracture morphology, precipitation behavior, fatigue crack initiation and propagation. Results indicated that T 1 (Al 2 CuLi) phase dominated the strengthening of 2198-T3 alloy after the further aging. Pre-deformation increased the number of dislocations in the matrix, which provided favorable position for nucleation of T 1 . The precipitation of θ′ (Al 2 Cu) and δ′ (Al 3 Li) were inhibited. Also, the formation and coarsening of precipitate-free zone (PFZ) were effectively avoided in this condition. Dislocation density in the 2198 Al-Li alloy matrix increased with the amount of pre-deformation, leading to an increase in microcrack defects on the surface and inside alloy. As a result, decreased fatigue life and an increased crack growth rate of the alloy were observed. Overall, 2198 Al-Li alloy had the best fatigue life and damage tolerance enhancement after it underwent 3% pre-deformation and was aged at 155°C for 15 h.

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Recent advances in the development of aerospace materials

Cited by 793 publications

References 117 publications

Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

Inspiration of reinforcements, manufacturing methods, and microstructural changes on wear behavior of metal matrix composites—a recent review

Effect of pre-deformation and artificial aging on fatigue life of 2198 Al-Li alloy

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