Influence of Plastic Deformation on the Microstructure and Corrosion Behaviour of Ti–10Mo–4Zr and Ti–6Al–4V Alloys in the Ringer's Solution at 37 °C. PDF Download
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Languages : en
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Author: Christine Blanc
Publisher: Elsevier
ISBN: 0128192410
Category : Technology & Engineering
Languages : en
Pages : 574
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Mechanics - Microstructure - Corrosion Coupling: Concepts, Experiments, Modeling and Cases presents the state-of-the-art on scientific and technological developments relating to the durability of materials and structures subjected to mechanical and environmental stress in industries such as energy, aeronautics, chemistry and oil. Experimental, theoretical and numerical aspects are tackled at different scales, providing readers with the most advanced tools and scientific approaches to apprehend coupling phenomena by understanding associated mechanisms, identifying variables of the first order, and proposing strategies to control and/or extend the lifespan of structures in a multi-process coupling situation. In addition, the book presents the latest advances in research in these areas (hydrogen embrittlement, stress corrosion, fatigue, etc.), especially in the consideration of the multi-scale aspect of the phenomena in the implementation of dedicated experiments. - Reviews the status of scientific and technological developments related to the durability of materials - Addresses experimental, theoretical and numerical aspects at different scales - Provides the most advanced tools and scientific approaches - Focuses on the latest advances, such as hydrogen embrittlement, stress corrosion, fatigue, and more
Author: Triwiyanto
Publisher: Springer Nature
ISBN: 9813369264
Category : Technology & Engineering
Languages : en
Pages : 719
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This Conference proceeding presents high-quality peer-reviewed papers from the International Conference on Electronics, Biomedical Engineering, and Health Informatics (ICEBEHI) 2020 held at Surabaya, Indonesia. The contents are broadly divided into three parts: (i) Electronics, (ii) Biomedical Engineering, and (iii) Health Informatics. The major focus is on emerging technologies and their applications in the domain of biomedical engineering. It includes papers based on original theoretical, practical, and experimental simulations, development, applications, measurements, and testing. Featuring the latest advances in the field of biomedical engineering applications, this book serves as a definitive reference resource for researchers, professors, and practitioners interested in exploring advanced techniques in the field of electronics, biomedical engineering, and health informatics. The applications and solutions discussed here provide excellent reference material for future product development.
Author: Lucas F. M. da Silva
Publisher: Springer
ISBN: 3030022579
Category : Technology & Engineering
Languages : en
Pages : 502
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This book highlights fundamental research on the design and application of engineering materials, and predominantly mechanical engineering applications. This area includes a wide range of technologies and materials, including metals, polymers, composites, and ceramics. Advanced applications include manufacturing cutting-edge materials, testing methods, and multi-scale experimental and computational aspects. The book introduces readers to a wealth of engineering applications in transport, civil, packaging and power generation.
Author: Euan Wielewski
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Languages : en
Pages :
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The core aim of this research project was to improve understanding of the effects of microstructure and crystallographic texture on the high strain rate plastic deformation behaviour of the industrially important Titanium alloy, Ti-6AI-4V. To facilitate this study, four rolled plates of Ti-6AI-4V, with varying thermo-mechanical processing histories, were provided by TIMET Corp., the world's largest supplier of Titanium product. To determine the nature of each plate's microstructure and the crystallographic texture of the dominant a phase, the four Ti-6AI-4V plates were microstructurally characterised using techniques such as optical microscopy and electron backscatter diffraction (EBSD). The effects of the measured microstructures and textures on the strain rate dependent plastic deformation behaviour of the four Ti-6AI-4V plates were investigated via a series of uniaxial compression and tension tests in the three orthogonal material orientations at quasi-static (10 3 s -1) and high strain rates (10 3 s -1) using a standard electro-mechanical test device and split-Hopkinson pressure bars (SHPB), respectively. To provide further understanding of the effects of microstructure and texture on the plastic deformation behaviour of Ti-6AI-4V, this time under complex impact loading conditions, the classic Taylor impact experiment was adapted to include an optical measurement and geometry reconstruction technique. A novel experimental setup was designed that consists of an ultra-high speed camera and mirror arrangement, allowing the Taylor impact specimen to be viewed from multiple angles during the experiment. Using the previously mentioned optical measurement and geometry reconstruction technique, it was then possible to gain valuable, previously unobtainable, data on the deformation history of Taylor impact specimens in-situ, such as the major/minor axes of the anisotropically deforming elliptical specimen cross- sections as a function of time and axial position, true strain as a function of time and axial position, and the true strain rate as a function of axial position. The technique was verified by testing a specimen cut from the in-plane material orientation of a clock-rolled high purity Zirconium plate. The output measurements from a post-deformation image frame were compared with measurements of the recovered specimen made using a coordinate measurement machine (CMM), with analysis showing excellent agreement between the two techniques. The experiment was then carried out on specimens cut from the two orthogonal in-plane material orientations of one of the four Ti-6AI-4V plates. Analysis of the data from these experiments gave significant insight into the plastic deformation behaviour of macroscopically textured Ti-6AI-4V under complex impact loading. Recovered Ti-6AI-4V specimens from the outlined Taylor impact experiments were then sectioned along specific planes and microstructurally characterised using EBSD, with comparisons made between the pre and post-deformation microstructures. From this analysis, and the previously discussed geometry reconstruction technique, insight was gained into the effects of micro-texture on the general anisotropic plastic deformation behaviour of Ti- 6AI- 4V plate materials and in particular the role of micro-texture on the formation of deformation twins. Finally, the understanding gained from these experiments, and a detailed review of the literature, was used to inform a novel, physically based material modelling framework, capable of capturing the effects of microstructure and texture on the strain rate and temperature dependent plastic deformation behaviour of Ti-6AI-4V. The model was implemented in the computational software package, MATLAB, and verified by comparison with the mechanical characterisation results from one of the Ti-6AI-4V plates. A number of frameworks are discussed for implementing the new Ti-6AI-4V model within finite element (FE) analysis software packages, such as ABAQUS, LS-DYNA and DEFORM. It is hoped that the new Ti-6AI-4V model can be used to optimise the design of Ti-6AI-4V components and structures for impact loading scenarios.
Author: W. Barry Lisagor
Publisher:
ISBN:
Category : Methanol
Languages : en
Pages : 52
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Factors affecting stress-corrosion cracking of Ti-6Al-4V alloy in methanol.
Author: Dennis L. Dull
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Anodic and cathodic polarization behaviors of Ti-6Al-4V were determined by potentiostatic and galvanostatic techniques in deaerated 1, 5, and 10N sulphuric acid solutions. In the active region metallurgical processing, which included cold rolling and thermal treatment, had no effect on the corrosion behavior. It is suggested that a titanium hydride film exists on the titanium alloy surface. In the passive region plastic deformation resulting from cold rolling increased the passive current density; whereas crystallographic texturing had no effect. The introduction of an alpha prime phase, resulting from thermal treatment, produced an additional peak in the passive region. (Author).
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Languages : en
Pages : 0
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This research established a constitutive model for high-temperature deformation of Ti-6Al-4V alloy with a transformed microstructure. It further investigated the morphological (alpha platelet thickness) effect on the high-temperature plastic flow of transformed microstructure in view of inelastic deformation theory.
![The Influence of Severe Plastic Deformation on Phase Transformations, Microstructure and Mechanical Properties in Metastable [beta]-Ti-Nb and [beta]-Ti-Nb-Pd Alloys PDF](https://books.google.com/books/content/images/frontcover/LDb3zQEACAAJ?fife=w80-h100)
Author: Paweł Żywicki
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Languages : en
Pages :
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Author: Stephen V. Spletzer
Publisher:
ISBN: 9781423551171
Category :
Languages : en
Pages : 61
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The shock behavior of a new, low-cost Ti-6Al-4V alloy has been characterized up to stress levels of 20 GPa. Examination of the particle velocity histories obtained from specimens of the alloy during 11 plate-on-plate impact/planar shock wave experiments indicates that the alloy deforms in an elastic-plastic manner. The magnitude of the Hugoniot Elastic Limit (HEL) lies between 2.0 and 3.0 GPa and appears to be dependent upon material thickness. Plastic shock velocity increases with increasing stress and varies from 5.20 to 5.53 mm/microsecond. Reshock experiments indicate material work hardening. Shear strength sustained during plastic deformation also tends to increase with stress and ranges from 0.5 to 0.9 GPa. Spall strength thresholds tend to vary with changes in pulse width and ranges from 3.1 to 4.2 GPa.
