Effect of grinding parameters on microstructure evolution of TC21 titanium alloy with bimodal starting microstructure

Wang, YuShi; Xiu, Shichao; Zhang, Shengnan; Jiang, Chunying

doi:10.1016/j.jallcom.2020.154882

Cited by 12 publications

(4 citation statements)

References 25 publications

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“…The deformation mechanism is related to the dynamic recrystallization of the β phase. For the TC21 alloy with a bimodal microstructure, the optimal processing domain is at the temperature of 880-900 • C/0.001-0.03 s −1 , which reveals that a low strain rate is advantageous to the hot processing of the alloy [16]. For the TC21 alloy with a widmanstätten structure, Wang et al [17] found that lamellar α was crushed into the short bar-like α phase during hot working in the α + β field.…”

Section: Introductionmentioning

confidence: 96%

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Simulation and Experimental Study of Hot Deformation Behavior in Near β Phase Region for TC21 Alloy with a Forged Structure

Ji,

Tian,

Tan

et al. 2023

Crystals

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Quasi-beta processing was considered to be a promising processing method to obtain a component with excellent mechanical properties. To achieve an optimized quasi-beta processing parameter for TC21 alloys, the hot deformation behavior in the near β phase region for the alloy with a forged structure was investigated by the thermal compression test and finite element (FEM) simulation. The obtained results indicated that the flow behavior of the samples was significantly influenced by the hot deformation parameters, and it exhibited a flow hardening behavior at the start stage of deformation. Based on the experimental data, the constitutive equation and processing maps were obtained. The optimum hot processing parameter was 986 °C/10−3 s−1. Based on the FEM simulation results, the evolution of the temperature field, strain field, and stress field in the deformed samples at different strains exhibited a similar trend in the unstable region, which was distributed symmetrically along the center line of the samples, with the center area of the samples being the highest and the center area of the section being the lowest.

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Section: Introductionmentioning

confidence: 96%

“…Nevertheless, only a few studies in the literature on the hot deformation behavior of TC21 alloys were reported [14][15][16][17]. Zhao et al [14] reported the hot working characteristics of TC21 alloys with a cluster of α block structure in the α + β field.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Study of Hot Deformation Behavior in Near β Phase Region for TC21 Alloy with a Forged Structure

Ji,

Tian,

Tan

et al. 2023

Crystals

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“…Heat treatment has an important influence on the mechanical properties of titanium alloys. At present, the commonly used heat treatment process to improve the comprehensive mechanical properties of titanium alloys is the second-stage heat treatment process (solid solution + aging) [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Third-Stage Heat Treatments on Microstructure and Properties of Dual-Phase Titanium Alloy

Mao

Chen

et al. 2021

Materials

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Two-phase TC21 titanium alloy samples were solution-treated at 990 °C (β phase zone) and cooled by furnace cooling (FC), air cooling (AC), and water quenching (WQ), respectively. The second solution stage treatment was carried out at 900 °C (α + β phase zone), then aging treatment was performed at 590 °C. The influence of the size and quantity of the α phase on the properties of the sample were studied. The experimental results showed as the cooling rate increased after the first solution stage treatment, wherein the thickness of primary layer α gradually decreased, and the tensile strength and yield strength gradually increased. After the second solution stage treatment, the tensile properties of samples increased due to the quantity of layers α increased. The aging treatment promoted the precipitation of the dispersed α phase and further improved the tensile strength. After the third solution stage treatments, the FC samples with more β-phase had the best comprehensive mechanical properties.

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“…Titanium alloys are among the most common structural metals used in aviation and space technology, rocket science, medicine, and other industries [1,2]. Titanium-based alloys are used to produce the most critical parts, the surface quality of which is formed during the final processing operations [3][4][5]. Therefore, the study of the titanium alloy grinding process is relevant to the current issues of modern mechanical engineering.…”

Section: Introductionmentioning

confidence: 99%

Morphology and Chemical Composition of Silicon Carbide Surface in Interaction with Titanium Alloy under Micro-Scratching Conditions

Nosenko

Fetisov

Nosenko³

et al. 2020

MATEC Web Conf.

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The article describes features of the wear site morphology formation during micro-scratching of a titanium alloy by a silicon carbide crystal in comparison with a corundum crystal. The initial shape of the crystal top and the rate of micro-scratching were assumed to be constant. No lubricating or cooling process media were used. External factors: micro-scratch depth and cutting path length. The chemical composition of wear sites was studied using micro-x-ray spectral analysis. The content of chemical elements in the surface layer of silicon carbide and adhered metal was studied at separate points and by area scanning. The accelerating voltage of the excitation electrons was changed in the range from 5 to 20 kV. The concentration of chemical elements on the surface of the wear site was determined immediately after micro-scratching and after removing the adhered metal by etching. The regularities of changes in the concentration of chemical elements depending on the accelerating voltage of the excitation electrons were determined.

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Effect of grinding parameters on microstructure evolution of TC21 titanium alloy with bimodal starting microstructure

Cited by 12 publications

References 25 publications

Simulation and Experimental Study of Hot Deformation Behavior in Near β Phase Region for TC21 Alloy with a Forged Structure

Simulation and Experimental Study of Hot Deformation Behavior in Near β Phase Region for TC21 Alloy with a Forged Structure

Effect of Third-Stage Heat Treatments on Microstructure and Properties of Dual-Phase Titanium Alloy

Morphology and Chemical Composition of Silicon Carbide Surface in Interaction with Titanium Alloy under Micro-Scratching Conditions

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