Effect of Cryogenic Treatment on Microstructure and Mechanical Properties of Al0.6CrFe2Ni2 Dual-Phase High-Entropy Alloy

Xie, Sichen; Lv, Qingyao; Zhang, Wei; Qu, Yingdong; Qi, Hao; Yu, Bo; Li, Rongde; Li, Guanglong; Yang, Fei

doi:10.3390/met13020195

Cited by 3 publications

(2 citation statements)

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“…Earlier studies demonstrate that heat treatment significantly affects the Al alloy’s characteristics . Results demonstrate that the heat treatment significantly influences the intermetallic bonding between the reinforcement and matrix material.…”

Section: Introductionmentioning

confidence: 92%

“…17,18 Earlier studies demonstrate that heat treatment significantly affects the Al alloy's characteristics. 19 Results demonstrate that the heat treatment significantly influences the intermetallic bonding between the reinforcement and matrix material. Compared to their as-cast state, Al composites significantly improve their mechanical characteristics after heat treatment.…”

Section: Introductionmentioning

confidence: 96%

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Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Erappa Rajj,

Nagaral,

Chintakindi

et al. 2024

ACS Omega

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Aluminum metal cast composites (AMCCs) are frequently used in high-tech sectors such as automobiles, aerospace, biomedical, electronics, and others to fabricate precise and especially responsible parts. The mechanical and wear behavior of the metal matrix composites (MMCs) is anticipated to be influenced by the cooling agent's action and the cooling temperature. This research paper presents the findings of a series of tests to investigate the mechanical, wear, and fracture behavior of hybrid MMCs made of Al7075 reinforced by varying wt % of nano-sized Al 2 O 3 and Gr and quenched with water and ice cubes. The heat-treated Al7075 alloy hybrid composites were evaluated for their hardness, tensile, and wear behavior, showcasing a significant process innovation. The heat treatment process greatly improved the hybrid composites' mechanical and wear performance. The samples quenched in ice attained the highest hardness of 119 VHN. There is a 45.37% improvement in the hardness of base alloy with the addition of 3% of Al 2 O 3 and 1% of graphite particles. Further, the highest tensile and compression strengths were found in the ice-quenched 3% Al 2 O 3 and 1% graphite hybrid composites with improvements of 34.2 and 48.83%, respectively, compared to the water-quenched base alloy. Under the samples quenched in ice, the mechanical and wear behavior improved. The tensile fractured surface showed voids, particle pullouts, and dimples. The worn-out surface of wear test samples of the created hybrid composite had micro pits, delamination layers, and microcracks.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 96%

Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Erappa Rajj,

Nagaral,

Chintakindi

et al. 2024

ACS Omega

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Enhancing Microstructural, Thermal, Mechanical, and Corrosion Response of a Bio/Eco‐Compatible Mg–2Zn–1Ca–0.3Mn Alloy Using Two Types of Cryogenic Treatments

Sole,

Johanes,

Gupta

2024

Adv Eng Mater

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Biocompatible Mg–2Zn–1Ca–0.3Mn is synthesized using the disintegrated metal deposition process and subjected to two types of cryogenic treatments (refrigeration [RF] at −20 and −196 °C using liquid nitrogen) with a target to improve microstructural, thermal, mechanical, and electrochemical responses. The material exhibits densification and grain refinement after these treatments, which improves the physical, thermal, compressive, and corrosion responses. While both RF and liquid nitrogen exposures improve the overall combination of properties, overall improvement in properties is best met with RF treatment at −20 °C. In the results of this work, the efficacy of low energy option (RF) is convincingly established rather than liquid nitrogen exposure (as conventionally practiced) to enhance microstructure and properties.

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An Insight into the Varying Effects of Different Cryogenic Temperatures on the Microstructure and the Thermal and Compressive Response of a Mg/SiO2 Nanocomposite

Johanes,

Mehtabuddin,

Venkatarangan

et al. 2024

Metals

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This study for the first time reports that insights into microstructure and thermal and compressive responses can be best achieved following exposure to different cryogenic temperatures and that the lowest cryogenic temperature may not always produce the best results. In the present study, a Mg-SiO2 biocompatible and environment-friendly nanocomposite was synthesized by using the Disintegrated Melt Deposition method followed by hot extrusion. Subsequently, it was subjected to four different sub-zero temperatures (−20 °C, −50 °C, −80 °C, and −196 °C). The results reveal the best densification at −80 °C, marginally improved ignition resistance at 50 °C, the best damping response at −80 °C, the best microhardness at −50 °C, and the best compressive response at −20 °C. The results clearly indicate that the cryogenic temperature should be carefully chosen depending on the property that needs to be particularly enhanced governed by the principal requirement of the end application.

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Effect of Cryogenic Treatment on Microstructure and Mechanical Properties of Al0.6CrFe2Ni2 Dual-Phase High-Entropy Alloy

Cited by 3 publications

References 27 publications

Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Enhancing Microstructural, Thermal, Mechanical, and Corrosion Response of a Bio/Eco‐Compatible Mg–2Zn–1Ca–0.3Mn Alloy Using Two Types of Cryogenic Treatments

An Insight into the Varying Effects of Different Cryogenic Temperatures on the Microstructure and the Thermal and Compressive Response of a Mg/SiO2 Nanocomposite

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Effect of Cryogenic Treatment on Microstructure and Mechanical Properties of Al0.6CrFe2Ni2 Dual-Phase High-Entropy Alloy

Cited by 3 publications

References 27 publications

Nano-Sized Al2O3–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Nano-Sized Al2O3–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Enhancing Microstructural, Thermal, Mechanical, and Corrosion Response of a Bio/Eco‐Compatible Mg–2Zn–1Ca–0.3Mn Alloy Using Two Types of Cryogenic Treatments

An Insight into the Varying Effects of Different Cryogenic Temperatures on the Microstructure and the Thermal and Compressive Response of a Mg/SiO2 Nanocomposite

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Product

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Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior

Nano-Sized Al₂O₃–Gr Reinforced Al7075 Hybrid Composite: Impact of Cooling Agents on Mechanical, Wear, and Fracture Behavior