Improving the high-temperature ductility of Al composites by tailoring the nanoparticle network

Nie, Jinfeng; Lu, Fenghua; Huang, Zhiwei; Ma, Xia; Zhou, Hao; Chen, Xiang; Yang, Huabing; Cao, Yang; Liu, Xiangfa; Zhao, Yonghao; Zhu, Yuntian

doi:10.1016/j.mtla.2019.100523

Cited by 15 publications

(2 citation statements)

References 46 publications

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“…Lu et al [104] prepared a UFG AlNp/Al composite with a hierarchical microstructure using cold RS, and its UTS exceeded 410 MPa primarily due to a homogeneous distribution of nano-sized AlN precipitates. Similar conclusions for this type of material were drawn by Nie et al [105].…”

Section: Fcc Compositessupporting

confidence: 90%

Structural Phenomena Introduced by Rotary Swaging: A Review

Kunčická

2024

Materials

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Rotary swaging is an industrially applicable intensive plastic deformation method. Due to its versatility, it is popular, especially in the automotive industry. Similar to the well-known methods of severe plastic deformation (SPD), rotary swaging imparts high shear strain into the swaged materials and thus introduces grain refinement down to a very fine, even ultra-fine, level. However, contrary to SPD methods, one of the primary characteristics of which is that they retain the shapes and dimensions of the processed sample, rotary swaging enables the imparting of required shapes and dimensions of workpieces (besides introducing structure refinement and the consequent enhancement of properties and performance). Therefore, under optimized conditions, swaging can be used to process workpieces of virtually any metallic material with theoretically any required dimensions. The main aim of this review is to present the principle of the rotary swaging method and its undeniable advantages. The focus is primarily on assessing its pros and cons by evaluating the imparted microstructures.

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Section: Fcc Compositessupporting

confidence: 90%

Structural Phenomena Introduced by Rotary Swaging: A Review

Kunčická

2024

Materials

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“…Due to the brittle nature of some intermetallic lamellar, the lamellar structure does not provide much resistance for crack propagation. Therefore, some eutectic alloys or lamellar-structured composites usually have limited ductility (elongation < 10%) even at high temperatures, and only through modification of microstructures can the ductility be improved [41,42].…”

Section: Enhanced High-temperature Mechanical Properties By Equiaxed Structurementioning

confidence: 99%

A novel equiaxed eutectic high-entropy alloy with excellent mechanical properties at elevated temperatures

Han

et al. 2020

Materials Research Letters

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Al 1.7 (at. %) eutectic high-entropy alloy (EHEA) consisting of facecentered-cubic (FCC) and C14 Laves phases was produced by powder metallurgy. The EHEA shows an equiaxed morphology that is different from eutectic lamellar structure. Nanometer L1 2 phase (4-5 nm) further precipitates in FCC matrix. The microstructure is highly stable upon annealing at 1000°C for 100 h, which leads to attractive high-temperature strength. The fracture behaviour is observed to be modified by the equiaxed Laves phase, which contains microcracks induced by multiple dislocation slips. The diversified cracking modes help to relieve stress concentration and therefore enhance ductility at high temperatures. IMPACT STATEMENTHigh-temperature tensile properties of a eutectic high-entropy alloy (EHEAs) are significantly improved compared to those of casted EHEAs, through modification of lamellar structure to an equiaxed one by powder metallurgy.

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Review: recent progress in aluminum matrix composites reinforced by in situ oxide ceramics

Rong,

Zhao,

et al. 2023

J Mater Sci

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Improving the high-temperature ductility of Al composites by tailoring the nanoparticle network

Cited by 15 publications

References 46 publications

Structural Phenomena Introduced by Rotary Swaging: A Review

Structural Phenomena Introduced by Rotary Swaging: A Review

A novel equiaxed eutectic high-entropy alloy with excellent mechanical properties at elevated temperatures

Review: recent progress in aluminum matrix composites reinforced by in situ oxide ceramics

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