X-ray Diffraction Study and Texture Evolution for a Ti-Nb-Ta Biomedical Alloy Processed by Accumulative Roll Bonding

Nocivin, Anna; Răducanu, Doina; Cincă, Ion; Trisca-Rusu, Corneliu; Butu, Mihai; Thibon, I.; Cojocaru, Vasile Dănuț

doi:10.1007/s11665-015-1414-4

Cited by 7 publications

(3 citation statements)

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“…It is well known that in the ARB process, a large amount of redundant shear strain owing to large friction between the rolls and the sheets can be introduced in the surface region ( Ref 2,[12][13][14]. In fact, the large friction between the sheet and the roll surfaces leads to significant shear deformation near the sheet surfaces, in addition to plane strain compression as in conventional rolling.…”

Section: Resultsmentioning

confidence: 99%

“…The texture evolution in ARB-processed materials has not been studied as extensively as the microstructural evolution. In the ARB process, evolution of texture is often compared to that of conventional rolling or simple shear deformation and is generally characterized by rolling-type components at the center or the mid-thickness and shear-type components near the surface ( Ref 9,12,13). It has been pointed out by Kamikawa et al (Ref 14) that the morphology and textural distribution of obtained structures deformed up to high strains strongly depend on the lubrication conditions.…”

Section: Introductionmentioning

confidence: 99%

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Annealing Texture of Nanostructured Steel-Based Nanocomposite

Jamaati

2015

J. of Materi Eng and Perform

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In this research, the evolution of annealing texture in nanostructured steel-based nanocomposite fabricated via accumulative roll bonding (ARB) process was investigated. Textural evolution after post-annealing of ARB-processed samples was evaluated using x-ray diffraction. Average grain size of the sample before and after the post-annealing was 55 nm and 1.5 lm, and the microstructures were uniform. All the samples indicated a strong a-fiber and c-fiber and a relatively weak f-fiber. Also, there were texture transitions in the a-fiber, e-fiber, c-fiber, g-fiber, and h-fiber. In addition, for all the samples, the intensities of the rolling textures were higher than those of the shear textures. Moreover, there was a progressive increase in the fraction of high-angle grain boundaries with the increasing strain. Finally, with increasing number of ARB cycles, the intensities of rolling and shear textures changed, and no stable texture was formed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Annealing Texture of Nanostructured Steel-Based Nanocomposite

Jamaati

2015

J. of Materi Eng and Perform

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“…Currently, the question of how to form UFG and NS states in bio-medical metal materials by SPD is being addressed by a number of research groups. These states can be achieved using the following methods: equal channel angular pressing and its modifications (ECAP) [34][35][36][37][38][39][40][41][42], high-pressure torsion [43][44][45], multidirectional forging (MDF) [46][47][48][49], and cyclic extrusion and compression (CEC) [49][50][51], as well as various methods of severe plastic deformation and rolling [52][53][54][55][56][57] and combined methods [58][59][60][61][62][63][64][65]. These methods can be used for the formation of UFG and NS structures in commercially pure titanium [36][37][38][39]50,51,65,66], in Ti-Nb alloy systems [67][68][69][70][71]…”

Section: Introductionmentioning

confidence: 99%

Development of Ultrafine–Grained and Nanostructured Bioinert Alloys Based on Titanium, Zirconium and Niobium and Their Microstructure, Mechanical and Biological Properties

Sharkeev

Eroshenko

Легостаева

et al. 2022

Metals

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For this paper, studies of the microstructure as well as the mechanical and biological properties of bioinert titanium, zirconium, and niobium alloys in their nanostructured (NS) and ultrafine-grained (UFG) states have been completed. The NS and UFG states were formed by a combined two-step method of severe plastic deformation (SPD), first with multidirectional forging (MDF) or pressing into a symmetrical channel (PSC) at a given temperature regime, and then subsequent multi-pass groove rolling (MPGR) at room temperature, with pre-recrystallization annealing. Annealing increased the plasticity of the alloys in the NS and UFG states without changing the grain size. The UFG structure, with an average size of structural elements of no more than 0.3 μm, was formed as a result of applying two-step SPD and annealing. This structure presented significant improvement in the mechanical characteristics of the alloys, in comparison with the alloys in the coarse-grained (CG) or small-grained (SG) states. At the same time, although the formation of the UFG structure leads to a significant increase in the yield strength and tensile strength of the alloys, their elastic modulus did not change. In terms of biocompatibility, the cultivation of MG-63 osteosarcoma cells on the polished and sandblasted substrates demonstrated high cell viability after 10 days and good cell adhesion to the surface.

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