Effect on microstructure and mechanical properties of in situ 6 wt%TiB2/Al–Zn–Mg–Cu composite subjected by two-step orthogonal deformation process

Huang, Jun; Xiang, Zhilei; Li, Jihao; Ma, Xiaocong; Zi-an, Yang; Shen, Gaoliang; Wang, Zhitian; Chen, Ziyong

doi:10.1557/s43578-021-00341-z

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…Lignin fiber/epoxy resin composites were prepared by atmospheric pressure stirring casting. The preparation of lignin fiber / epoxy resin composites includes surface treatment of lignin fiber, dilution of epoxy resin matrix material, stirring and curing of composites, etc [17,18]. E51 bisphenol A epoxy resin (guangzhou Suixin Chemical Co., LTD.) was selected as the matrix of the composite.…”

Section: Methodsmentioning

confidence: 99%

Study on Mechanical Properties and Fracture Mechanisms of Lignin Fiber/epoxy Resin Composites

Wu¹,

Wang²,

Zhang³

et al. 2023

Mater. Plast.

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Lignin fiber/epoxy resin compositeused for energy absorbing was prepared by atmospheric stirring method. Quasi-static compressive mechanics tests were implemented by using the electronic universal mechanics tester (WDW-100KN) under ambient conditions to analyze the compressing behavior of the matrix material and composite at the strain rate of 10-2s-1 .Scanning electron microscope (SEM) was used to observe the microstructure of the composite after quasi-static compression damage. The results showed that when the ratio of epoxy resin and curing agent was 3:1, the internal structure of the matrix material was more uniform with smoother cross-section, which represented better mechanical properties. It was found that the addition of lignin fiber changed the compression characteristics of the matrix material, resulting in a strengthening stage appeared. At the same time, when the lignin fiber content was 2% or 3%, the composite could absorb more impact energy and delay crack generation, which met the performance requirement of energy absorbing materials.

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Section: Methodsmentioning

confidence: 99%

Study on Mechanical Properties and Fracture Mechanisms of Lignin Fiber/epoxy Resin Composites

Wu¹,

Wang²,

Zhang³

et al. 2023

Mater. Plast.

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“…Upon reaching the peak true stress, the deformation behavior achieves a dynamic balance between work hardening and dynamic softening. Dynamic softening encompasses DRV and DRX [43]. During the uniform deformation process, the true stress slightly decreases under low-strain-rate conditions.…”

Section: Plastic Flow Behavior In Hot Compressionmentioning

confidence: 99%

Hot Deformation Behavior and Microstructural Evolution of a TiB2/Al-Zn-Mg-Cu-Zr Composite

Huang,

Xiang,

et al. 2024

Materials

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In the present work, the hot deformation behavior and microstructural evolution of a TiB2/Al-Zn-Mg-Cu-Zr composite were studied. Hot compression tests were conducted within a temperature range of 370 °C to 490 °C and a strain rate of 0.001 s−1 to 10 s−1. We established the Arrhenius constitutive equation with Zener–Hollomon parameters and processing maps and discussed the microstructural evolution during hot deformation. The results indicated that the safe processing parameter region falls within 370 °C–490 °C and 0.001 s−1–0.025 s−1. The influence of the strain rate on the safe processing range is more dominant than that of deformation temperature, which is primarily attributed to TiB2. Dynamic softening is primarily governed by dynamic recovery (DRV). Small particles (η, Al3Zr) can pin dislocations, promoting the rearrangement and annihilation of dislocations and facilitating DRV. Higher temperatures and lower strain rates facilitated dynamic recrystallization (DRX). Continuous dynamic recrystallization (CDRX) occurs near high-angle grain boundaries induced by strain-induced boundary migration (SIBM). TiB2 and large second-phase particles generate high-density geometrically necessary dislocations (GNBs) during hot deformation, which serve as nucleation sites for discontinuous dynamic recrystallization (DDRX). This enhances dynamic softening and improves formability.

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Effect of Y-modified TiB2 ceramic particles on the microstructure and mechanical properties of TIG welded joints of spray-formed 7055 aluminum alloy

Yuan

et al. 2022

Journal of Materials Research and Technology

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Effect on microstructure and mechanical properties of in situ 6 wt%TiB2/Al–Zn–Mg–Cu composite subjected by two-step orthogonal deformation process

Cited by 7 publications

References 37 publications

Study on Mechanical Properties and Fracture Mechanisms of Lignin Fiber/epoxy Resin Composites

Study on Mechanical Properties and Fracture Mechanisms of Lignin Fiber/epoxy Resin Composites

Hot Deformation Behavior and Microstructural Evolution of a TiB2/Al-Zn-Mg-Cu-Zr Composite

Effect of Y-modified TiB2 ceramic particles on the microstructure and mechanical properties of TIG welded joints of spray-formed 7055 aluminum alloy

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