Origin of Surface Irregularities on Ti–10V–2Fe–3Al Beta Titanium Alloy

Utama, Muhammad Iman; Ammar, Abdul Aziz; Park, Nokeun; Baek, Eung Ryul

doi:10.1007/s12540-018-0042-6

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…During rolling, numerous elongated grain colonies with similar crystal orientations form and persist even after annealing. The presence of these elongated grain colonies leads to localized strain and banding, which increases surface roughness during forming [130], a challenge that can be addressed through microstructure and texture optimization [130][131][132]. By controlling the development of coarse bands and texture, crystallographic anisotropy can be minimized.…”

Section: Ridging In Fsssmentioning

confidence: 99%

Evolution of Microstructure and Crystallographic Texture in Deformed and Annealed BCC Metals and Alloys: A Review

Tandon,

Park,

Khatirkar

et al. 2024

Metals

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Dislocation slips, twinning, shear banding (SBs), strain localization, and martensite formation are a few deformation modes that are activated in BCC metals and alloys. Strain, strain rate, and deformation temperature are other parameters that determine the activation of deformation modes in BCC alloys. This review focuses on several BCC alloys, such as beta-titanium (β-Ti), tantalum (Ta), and ferritic stainless steels (FSSs), all of which exhibit differences in deformation behavior. These alloys often undergo thermo-mechanical processing (TMP) to enhance their mechanical properties. TMP leads to the evolution of deformation-induced products, such as SBs, strain-induced martensite (SIM), strain localizations, and mechanical/deformation twins (DTs) during plastic deformation, while also influencing crystallographic texture. The deformation modes in β-Ti depend upon the stability of the β-phase (i.e., β-stabilizers); low-stability alloys show the formation of SIM along with slips and twins, whereas in highly stable β-Ti alloys, only slip+twin modes are observed as the primary deformation mechanisms. In the case of Ta, slip activity predominantly occurs on {110} planes, but it can also occur on planes with the highest resolved shear stress. The breakdown of Schmid’s law or non-Schmid behavior for Ta and Ta-W alloys has been discussed in detail. The cold rolling (CR) of FSSs results in the formation of ridges, which is an undesirable phenomenon leading to very low formability. The microstructures of the rolled sheets consist of elongated ferrite grains with in-grain SBs, which are preferentially formed in the γ-fiber-oriented grains. The formation of finer grains after recrystallization improves both the mechanical properties and ridging resistance in FSS. Therefore, this review comprehensively reports on the impact of TMP on the microstructural and crystallographic texture evolution during the plastic deformation and annealing treatment of β-Ti, Ta alloys, and FSSs in BCC materials, using results obtained from electron microscopy and X-ray diffraction.

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Section: Ridging In Fsssmentioning

confidence: 99%

Evolution of Microstructure and Crystallographic Texture in Deformed and Annealed BCC Metals and Alloys: A Review

Tandon,

Park,

Khatirkar

et al. 2024

Metals

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“…Utama et al [61] reported surface height irregularities that occurred during machining Ti-10V-2Fe-3Al beta (β) titanium alloy. The author observed the height differences in two different regions, "soft region" and "hard region."…”

Section: Background/motivationmentioning

confidence: 99%

Spark Plasma Sintered High-Entropy Alloys: An Advanced Material for Aerospace Applications

Afolabi¹,

Popoola²,

Popoola³

2020

Recent Advancements in the Metallurgical Engineering and Electrodeposition

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High-entropy alloys (HEAs) are materials of high property profiles with enhanced strength-to-weight ratios and high temperature-stress-fatigue capability as well as strong oxidation resistance strength. HEAs are multi-powder-based materials whose microstructural and mechanical properties rely strongly on stoichiometry combination of powders as well as the consolidation techniques. Spark plasma sintering (SPS) has a notable processing edge in processing HEAs due to its fast heating schedule at relatively lower temperature and short sintering time. Therefore, major challenges such as grain growth, porosity, and cracking normally encountered in conventional consolidation like casting are bypassed to produce HEAs with good densification. SPS parameters such as heating rate, temperature, pressure, and holding time can be utilized as design criteria in software like Minitab during design of experiment (DOE) to select a wide range of values at which the HEAs may be produced as well as to model the output data collected from mechanical characterization. In addition to this, the temperature-stress-fatigue response of developed HEAs can be analyzed using finite element analysis (FEA) to have an in-depth understanding of the detail of inter-atomic interactions that inform the inherent material properties.

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“…Titanium and its alloy have become attention in the recent year due to their superior mechanical properties, such as low density, susceptible to elevated temperature, good formability, heat treatable material, and excellent corrosion resistance determined by microstructure and chemical composition of the alloys [1][2][3][4][5][6][7][8][9][10]. In particular, Ti-6Al-4V is one of superior titanium α+β due to its capability to control and optimized microstructure to obtain the desired properties [2].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Dynamic Recrystallization Phenomenon in Drawn Ti-6Al-4V Alloy

Nugroho

Suprobo

Park

et al. 2020

MSF

Self Cite

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The microstructure evolution during the drawing process of Ti-6Al-4V alloy with a lamellar morphology as an initial microstructure was investigated. Microstructure analysis on specimens with a different reduction ratio supported by 2D-drawing process simulation using DEFORMTM was utilized to examine the deformed state and microstructure behavior of the alloy. Dynamic recrystallization (DRX) phenomenon on the high reduction ratio (52.7%) was achieved fine equiaxed grain. A Zenner-Holllomon calculation using temperature and strain rates was also conducted to evaluate the DRX. Furthermore, a higher drawing reduction ratio attributed to a high fraction of kinked lamellar, which DRX occurred in the shear band and the regions of broken lath or kinked.

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Origin of Surface Irregularities on Ti–10V–2Fe–3Al Beta Titanium Alloy

Cited by 4 publications

References 23 publications

Evolution of Microstructure and Crystallographic Texture in Deformed and Annealed BCC Metals and Alloys: A Review

Evolution of Microstructure and Crystallographic Texture in Deformed and Annealed BCC Metals and Alloys: A Review

Spark Plasma Sintered High-Entropy Alloys: An Advanced Material for Aerospace Applications

Investigation of Dynamic Recrystallization Phenomenon in Drawn Ti-6Al-4V Alloy

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