Fundamentals of Severe Plastic Deformation

Faraji, Ghader; Kim, Hyoung Seop; Kashi, Hessam Torabzadeh

doi:10.1016/b978-0-12-813518-1.00001-1

Cited by 39 publications

(10 citation statements)

References 48 publications

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“…In addition, the equivalent von Mises strain ( ε eq ) contours were extracted from the DIC and FEM studies as shown in the presented plots. It must be noted that ε eq was obtained in accordance with the continuum mechanics theory 30 …”

Section: Analysis and Resultsmentioning

confidence: 99%

A fracture study of slanted cracks using the stress dead‐zone hypothesis

Farahani

Melo

Tavares

et al. 2020

Fatigue Fract Eng Mat Struct

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This manuscript investigates the effect of existing slant cracks in finite plates subjected to the mode I loading condition using the stress dead-zone (SDZ) concept. For this purpose, standardised polymeric middle tension (MT) specimens containing slant notches with different orientations were mechanically tested under a unidirectional tensile load. The experimental data were collected and analysed using 3D digital image correlation (DIC) contributing to document the deformation field around slanted cracks and stress intensity factor (SIF) evaluation. Computationally, the fracture model was solved using the finite element method (FEM) to obtain results on the SIF, deformation field and the SDZ characterisations. The obtained SIFs were compared with a reference solution from the literature. An acceptable agreement has been accomplished amongst the results. Furthermore, the SDZ was assessed through deformation field obtained from DIC and FEM.

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Section: Analysis and Resultsmentioning

confidence: 99%

A fracture study of slanted cracks using the stress dead‐zone hypothesis

Farahani

Melo

Tavares

et al. 2020

Fatigue Fract Eng Mat Struct

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“…Finally, vapors are condensed on the specimen's surface to form a thin coating. 98,157 In the ion plating method, numbers of energized particles are allowed to strike with the Ti-surface to make a thin layer. This is attributed to achieving the required tribology properties of the coated film.…”

Section: Physical Techniquesmentioning

confidence: 99%

Potential of titanium based alloys in the biomedical sector and their surface modification techniques: A review

Asad

Sana

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Titanium and its alloys are belonging to the class of biomedical materials and have amazing characteristic features, including high corrosion protection, incredible wear resistance, superb hardness, and extraordinary bio-degradability and activity. Due to these remarkable qualities, titanium materials are considerably treated in medical applications like bone implantation, surgical devices and prosthesis, dental implants, and fracture bone fixation by screws, plates, nails and abutments. However, there is a property of titanium alloys that it holds layers of oxygen over the surface, but the atmospheric reactions/changes at extremely high temperature alter the morphology of the films, resulting in the loss of biological performance. In order to cover up this barrier, surface treatments are performed through different mechanical, chemical, and physical means. The treatments over the surface enhance the micro-features, improve the biocompatibility, and extend the life of coatings on titanium substrate. These modifications allow the various titanium alloys to be principally used in medical and dental applications. Considering the significance and applications of these alloys, this article is mainly conducted to scrutinize the various aspects, that is, biomedical applications and surface modification techniques, of titanium-based materials.

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“…These processes create plasmas in which intimate mixing of the sputtered components occurs at the atomic level. 64–68 This mixing could remove the diffusion limitation and significantly increase the extent of reaction between Li 2 O and LiCl. Furthermore, these deposition techniques are performed in vacuum chambers free of moisture, preventing hydration during synthesis.…”

Section: Introductionmentioning

confidence: 99%

“…Advantages of RF magnetron sputtering over PLD include the ability to use an unpressed and unsintered mixture of the precursor powders as the target, which simplifies processing and allows continual adjustment of the precursor ratio, and easier deployment of the process at an industrial scale. 64,65,67,70,71 In this investigation we developed a radio frequency (RF) magnetron sputtering process to deposit thin film electrolytes containing a quantity of antiperovskite phase from mixtures of Li 2 O and LiCl powders, taking rigorous precautions to avoid exposure to moisture at all stages of synthesis and characterization. Deposition of films from Li 2 OHCl powder was also performed for comparison.…”

Section: Introductionmentioning

confidence: 99%