Texture and anisotropy of a hot rolled Ti–16Nb alloy

Banumathy, S.; Mandal, R.K.; Singh, A. K.

doi:10.1016/j.jallcom.2010.04.022

Cited by 39 publications

(7 citation statements)

References 15 publications

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“…Different texture components occur under different processing parameters, and the evolution of texture would determine the mechanical properties of titanium alloys [7]. Kou et al [8] revealed the texture revolution of Ti-15Mo-3Al-2.7Nb-0.2Si alloy during hot rolling.…”

Section: Introductionmentioning

confidence: 99%

The Formation of Strong {100} Texture by Dynamic Strain-Induced Boundary Migration in Hot Compressed Ti-5Al-5Mo-5V-1Cr-1Fe Alloy

Yang

2017

Metals

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Abstract:The microstructure and texture evolution of Ti-5Al-5Mo-5V-1Cr-Fe alloy during hot compression were investigated by the electron backscatter diffraction technique. The results reveal that two main texture components containing <100> and <111> fiber textures form after the hot compression. The fraction of each component is mainly controlled by deformation and strain rate. Dynamic strain-induced boundary migration (D-SIBM) is proved to be the reason that <100>-oriented grains grow towards <111>-oriented grains. The <100>-oriented grains coarsen with the increasing <100> texture intensity. Dynamic recrystallization (DRX) occurs under a low strain rate and large deformation. The DRX grains were detected by the method of grain orientation spread. The DRX grains reserve a <100> fiber texture similar to the deformation texture; however, DRX is not the main reason causing the formation of a strong <100> texture, due to its low volume fraction.

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Section: Introductionmentioning

confidence: 99%

The Formation of Strong {100} Texture by Dynamic Strain-Induced Boundary Migration in Hot Compressed Ti-5Al-5Mo-5V-1Cr-1Fe Alloy

Yang

2017

Metals

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“…where YS BD is the yield strength of the longitudinal, YS 45 • is specimen axis at 45 • direction, and YS SD is the yield strength of the transverse. For the tensile property test results in the directions of the longitudinal, 45 • and transverse, Formula (1) could be simplified as follows [28]:…”

Section: Tensile Propertiesmentioning

confidence: 99%

Effects of Solution Treatment on Laser Welding of Ti–6Al–4V Alloy Plate Produced through Wire Arc Additive Manufacturing

Chen

Zhang

et al. 2020

Metals

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Laser beam welding (LBW) had been successfully applied to the welding of Ti–6Al–4V plates by wire arc additive manufacturing. The effects of solution treatment on microstructure, tensile properties, and microhardness after LBW in different deposition directions were studied. When the wire speeding was 3 m/min and travel speed was 0.36 m/min, the difference in mechanical properties was related to the anisotropy of the microstructure. The long columnar grain along the building direction could provide an α path with a large aspect ratio and high elongation. More grain boundaries are present along the scanning direction than in others, showing high strength. The microstructure of the as-deposited condition mainly consists of coarse prior-β grains, partial basket-weave structure, and numerous martensite α′ phase. In LBW without solution treatment, the microstructure of the welds mainly consists of a large amount of martensite α′ and a small amount of basket-weave structure. The weld had high strength and hardness. The tensile strength was between 930 and 970 MPa. The hardness was between 415 and 456 HV. The elongation ranged from 5% to 7%. Afterwards, the temperature was maintained at 870 °C for 2 h, cooled to 600 °C in the furnace for 1 h, and finally air cooled to room temperature. The martensite α′ was almost completely transformed into platelet α. The microstructure of the welds mainly consists of partial β grains, thimbleful martensite α′, and a large of α path. The strength and hardness of the welds were reduced. The tensile strength is between 910 and 950 MPa. The hardness was between 398 and 445 HV. However, the elongation was significantly improved, and the elongation ranged from 10% to 12%.

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“…This anisotropy was studied on several aspects; some authors have investigated its effect on the cyclic behaviour, essentially for the aluminium alloys [1,42,43]. Others have tried to show the importance of this anisotropic behaviour and its consideration in design of structures [44][45][46]. Furthermore, modelling of anisotropic behaviour in aluminium alloys has attracted extensive attention of many researchers due to its complexity and its effect on predicting fatigue damage behaviours [47][48][49].…”

Section: Introductionmentioning

confidence: 99%

On the origins of the anisotropic mechanical behaviour of extruded AA2017 aluminium alloy

May

2017

Bull Mater Sci

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This paper presents some experimental investigations about the origins of the anisotropic behaviour in cyclic loadings of AA2017 aluminium alloy. In the first step, fatigue damage evolutions were quantified for controlled proportional cyclic loadings in axial and shear directions. In this stage, the aim was to confirm the anisotropic mechanical behaviour, which has recently been revealed. To this end, several models of fatigue damage quantification were used. After a comparative study between the obtained results we confirmed the anisotropic nature of the used material. In the second step, microstructural investigations were performed in order to understand the origins of the anisotropic mechanical behaviour. We used scanning electron microscopy to analyse phases and precipitates in the transversal and the longitudinal sections. It was deduced that the structure and the morphology of these entities are responsible for the anisotropic behaviour of the used aluminium alloy. Moreover, the results obtained using Kikushi diagrams, poles figure and inverse poles figures have also confirmed these conclusions. Indeed, these results have shown great differences in crystallographic texture of the material.

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Texture and anisotropy of a hot rolled Ti–16Nb alloy

Cited by 39 publications

References 15 publications

The Formation of Strong {100} Texture by Dynamic Strain-Induced Boundary Migration in Hot Compressed Ti-5Al-5Mo-5V-1Cr-1Fe Alloy

The Formation of Strong {100} Texture by Dynamic Strain-Induced Boundary Migration in Hot Compressed Ti-5Al-5Mo-5V-1Cr-1Fe Alloy

Effects of Solution Treatment on Laser Welding of Ti–6Al–4V Alloy Plate Produced through Wire Arc Additive Manufacturing

On the origins of the anisotropic mechanical behaviour of extruded AA2017 aluminium alloy

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