Hot Deformation Behaviour of SiC/AA6061 Composites Prepared by Spark Plasma Sintering

Li, Xiaopu; Liu, Chongyu; Luo, Kun; Ma, Mingzhen; Liu, Riping

doi:10.1016/j.jmst.2015.12.006

Cited by 39 publications

(3 citation statements)

References 31 publications

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“…115 In the majority of industrial applications, coatings consisting of a single material may not fully meet difficult specifications such as high wear and corrosion resistance, excellent chemical stability, while composites, which combine the properties of different components, can be useful. In particular, compared to traditional composite fabrication technologies, such as powder metallurgy (PM), pressure infiltration, 116 spark plasma sintering, 117 in-situ reaction spraying and thermal spraying, friction stir processing, 118 CS does not possess deleterious effects of interface reaction, oxidation, and under-utilization of the reinforcement phase 119,120 . Therefore, CS shows great potential in the fabrication of composite coatings.…”

Section: Introductionmentioning

confidence: 99%

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Assadi

Gaertner

et al. 2018

Critical Reviews in Solid State and Materials Sciences

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Cold spraying (CS) has been widely explored over the last decade due to its low process temperature and limited thermal effect on spray materials. As a solid-state process, the inherent deficiencies of traditional thermal spraying such as oxidation, decomposition and grain growth are avoided. This article summarizes the research work on the fabrication of composites and nanostructured coatings by the promising CS process. After a brief introduction to CS and its deposition mechanisms, the preparation methods of spray powders are classified. Different methods are appropriate for particles of various properties, and the tendency is to design composite powders by combined methods in order to create coatings with specified properties. Then the co-deposition mechanism of composite particles as well as research findings on metal-metal, metal-ceramic and metal-intermetallic composite coatings are reviewed concerning the deposition characteristics, microstructure and its relation to properties. Moreover, CS has been used to deposit a variety of nanostructured materials, including metals, metal-ceramic composites, and even ceramics, retaining their nanocrystalline nature in the coating without grain growth or phase transformation. Finally, the potential applications of CS and issues to be addressed in coating deposition are discussed.

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Section: Introductionmentioning

confidence: 99%

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Assadi

Gaertner

et al. 2018

Critical Reviews in Solid State and Materials Sciences

View full text Add to dashboard Cite

show abstract

“…Subsequently, the stress decreases with the increase of strain under the softening effect of dynamic recovery and dynamic recrystallization. On the whole, the true stress-strain curve shifts to the high stress area with the increase of strain rate or the decrease of deformation temperature, which belongs to the temperature and strain rate sensitive material, that is similar to that of sintered Ti-6Al-4V [ 35 ], SiC/AA6061 [ 36 ], Al2024-TIN [ 37 ], and Fe-25Al-1.5Ta [ 38 ], but with a more pronounced softening phenomenon.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

et al. 2022

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Zr-6Al-0.1B alloy rich in Zr3Al phase is prepared by hot-pressing sintering. The thermal deformation behavior of sintered Zr-6Al-0.1B is analyzed by isothermal compression tests at deformation temperatures of 950, 1050, and 1150 °C with strain rates of 0.01, 0.1, and 1 s−1. The results indicate that at the early stage of thermal deformation, the stress increases rapidly with the increase of strain and then reaches the peak value. Subsequently, the stress decreases with the increase of strain under the softening effect. On the whole, the true stress-strain curve shifts to the high stress area with the increase of strain rate or the decrease of deformation temperature, so the sintered Zr-6Al-0.1B alloy belongs to the temperature and strain rate sensitive material. For the microstructure evolution of sintered Zr-6Al-0.1B during the isothermal compression, the high strain rate can improve the grain refinement. However, because sintered Zr-6Al-0.1B is a low plastic material, too high strain rate will exceed the deformation capacity of the material, resulting in an increase in defects. The increase of deformation temperature also contributes to grain refinement, but when the temperature is too high, due to the decomposition of Zr3Al phase, the deformation coordination of the material decreases, leading to the increase of the probability of the occurrence of defects. This study verified the feasibility of hot-pressing sintering to prepare Zr-6Al-0.1B alloy rich in Zr3Al phase and laid the foundation of “hot-pressing sintering + canning hot-extrusion” process of Zr-6Al-0.1B alloy components.

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“…Aluminum matrix composites (AMCs) reinforced with ceramic particles, carbon nanotubes, or graphene, as lightweight structural materials, have wide applications in the aerospace and military industries [1][2][3]. Especially for the SiC particles, the reinforced AMCs have attracted great attention for their low costs and high strengthening efficiency [4][5][6], and have been widely used in spacecraft such as the dual-axis antenna drive mechanism in the Zhurong rover. In consideration of the strict service conditions of aerospace and military, AMCs are required to be lighter, stronger, and more ductile [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

背应力平衡策略实现非均质Al-SiC复合材料的强塑性协同

et al. 2022

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Strength-ductility trade-off dilemma remains a significant obstacle to high-strength composites due to the undesirable dislocation storability. Herein, an ingenious nano-micro SiC-reinforced Al matrix composite (AMC) with heterogeneous grain structures of coarse and fine grains was designed via a novel deformation-driven metallurgy method. The accumulated geometrically necessary dislocations and the intragranularly dispersed SiC particles were tailored based on the principle of back stress amelioration, which was a key point to maintain the dynamic balance with the applied stress toward strength-ductility synergy. The ultimate tensile strength and uniform elongation of the designed SiC 5np-5μp /Al composite reached 324 MPa and 12.9%, respectively, and the strength was 181% as high as that of the SiC 10μp /Al with only 3% ductility loss. As such, a new strategy was provided herein to promote strength-ductility synergy via the further modified back stress.

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Hot Deformation Behaviour of SiC/AA6061 Composites Prepared by Spark Plasma Sintering

Cited by 39 publications

References 31 publications

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

背应力平衡策略实现非均质Al-SiC复合材料的强塑性协同

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Hot Deformation Behaviour of SiC/AA6061 Composites Prepared by Spark Plasma Sintering

Cited by 39 publications

References 31 publications

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

A Review of Advanced Composite and Nanostructured Coatings by Solid-State Cold Spraying Process

Microstructure and Thermal Deformation Behavior of Hot-Pressing Sintered Zr-6Al-0.1B Alloy

背应力平衡策略实现非均质Al-SiC复合材料的强塑 性协同

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背应力平衡策略实现非均质Al-SiC复合材料的强塑性协同