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The effect of sintering temperature on prepared and properties of calcium hexaluminate/gehlenite composites [PDF]

open access: yesScience of Sintering, 2014
In this paper, the calcium-hexaluminate/gehlenite (CA6/C2AS) composites have been synthesized by traditional high temperature solid state method using magnesium slag as a source of calcium and silicon.
Bai P.   +4 more
doaj   +1 more source

The effect of sintering temperature on the structure and properties of corundum/mullite ceramics [PDF]

open access: yesScience of Sintering, 2015
In this work, samples are prepared by adding secondary raw bauxite and some suitable amount pure silica. After dry pressing molding, using solid phase sintering method sinter them at 1380ºC,1410ºC,1440ºC,1410ºC,1500ºC,1530ºC, respectively.
Yu-Ming T.   +7 more
doaj   +1 more source

Coalescence of Al0.3CoCrFeNi polycrystalline high-entropy alloy in hot-pressed sintering: a molecular dynamics and phase-field study

open access: yesnpj Computational Materials, 2023
Existing hot sintering models based on molecular dynamics focus on single-crystal alloys. This work proposes a new multiparticle model based on molecular dynamics to investigate coalescence kinetics during the hot-pressed sintering of a polycrystalline ...
Qingwei Guo   +5 more
doaj   +1 more source

Designing grain refinement passes for multi-direction forging: A phase-field crystal study

open access: yesJournal of Materials Research and Technology, 2023
Multi-directional forging is an effective plastic deformation method for polycrystalline grain refinement, and the degree of refinement is closely related to the number of forging passes. However, the relationship between the degree of refinement and the
Zhuo Song   +5 more
doaj   +1 more source

Recrystallization behavior and mechanical properties of AZ31B alloy during the hot-rolling process

open access: yesJournal of Materials Research and Technology, 2023
In this work, microstructural characteristics, dynamic recrystallization and mechanical properties of the hot-rolled AZ31B were investigated. The results indicated that the different mechanisms of recrystallization are responsible for the microstructural
Chenhui Li   +5 more
doaj   +1 more source

Predicting the stacking fault energy in FCC high-entropy alloys based on data-driven machine learning

open access: yesJournal of Materials Research and Technology, 2023
The properties of high-entropy alloys (HEAs) depend primarily on the composition and content of elements. However, getting the optimal composition of alloying elements through the traditional ''trial and error'' method is challenging, especially for non ...
Xiaoyang Zhang   +4 more
doaj   +1 more source

Toughening mechanism and delayed fracture analysis of 4145H steel under intercritical quenching heat treatment process

open access: yesJournal of Materials Research and Technology, 2023
Tuning thermal treatment schedule has been confirmed as an effective technical route for achieving optimum properties of steels. In the present work, the intercritical quenching tempering(IQT) process was applied to steel 4145H for oil drilling tools ...
Zhuoran Feng   +5 more
doaj   +1 more source

Phase field simulation for grain refinement in dendrite growth of A356 aluminum alloy

open access: yesJournal of Materials Research and Technology, 2023
Although A356 aluminum alloy has poor ductility and strength, the refinement of the initial α-Al phase has shown promise in improving these properties. The impact of grain refinement mechanisms on the organization and morphology of A356 aluminum alloys ...
Jiaqi Pei   +4 more
doaj   +1 more source

Hardening-softening of Al0.3CoCrFeNi high-entropy alloy under nanoindentation

open access: yesMaterials & Design, 2023
The competition and balance mechanism between work hardening resulting from the surge in dislocations and material softening caused by plastic deformation during contact loading in Al0.3CoCrFeNi high-entropy alloy is unclear.
Qingwei Guo   +6 more
doaj   +1 more source

Enhanced strength in Co-free Ni47.5-xFe25Cr25AlxTi2.5 high entropy alloys via introducing dual precipitates

open access: yesJournal of Materials Research and Technology, 2023
Synergistic strengthening mechanisms (e.g. solid solution strengthening, grain/twin boundary strengthening, dislocation strengthening, and precipitation strengthening) have been shown to effectively achieve a balance between strength and ductility of ...
Xiaotao Xu   +6 more
doaj   +1 more source

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