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 Download
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![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=w150-h200)
Author: Paweł Żywicki
Publisher:
ISBN:
Category :
Languages : en
Pages :
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![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
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Andrea Bachmaier
Publisher: MDPI
ISBN: 3039436872
Category : Science
Languages : en
Pages : 224
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Book Description
Severe plastic deformation (SPD) is a very attractive research field for metallic materials because it provides new possibilities for manufacturing nanostructured materials in large quantities and allows microstructural design on different hierarchical levels. The papers included in this issue address the following topics: novel SPD processes as well as recent advancements in established processing methods, microstructure evolution and grain refinement in single- and multi-phase alloys as well as composites, strategies to enhance the microstructure stability at elevated temperatures, mechanically driven phase transformations, surface nanostructuring, gradient and multilayered materials, and mechanical and physical properties of SPD-processed materials.
![Mechanical Properties Optimization Via Microstructural Control of a Metastable [beta]-type Ti-Nb Based Gum Metal PDF](https://books.google.com/books/content/images/frontcover/vOsgygEACAAJ?fife=w80-h100)
Author: Sumin Shin
Publisher:
ISBN:
Category :
Languages : en
Pages : 195
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Book Description
Metastable [beta] titanium alloys are essential materials for biomaterials and aerospace applications. It is well known that their properties can be manipulated by tailoring the [beta] phase stability and/or microstructural design, which not only results in the activation of multiple deformation mechanisms but also leads to non-homogeneous plastic deformation. Aiming at an improved understanding of the deformation mechanisms associated with the [beta] phase stability, especially the effects of elemental distributions on the deformation mechanisms, three groups of Ti-23Nb-0.8Ta-2Zr-O (at%) alloys with varied [beta] phase stability were produced, which correspond to the occurrence of stress induced [alpha]" martensite transformation, mechanical twinning and slip dislocation, respectively. The [beta]-phase stability dependence of deformation features can explain the possibility of manipulating the mechanical properties without the evident elastic properties. In twin-dominated metal, the prevailed deformation mechanism is found to be modified into multiple twinning systems based on the dependence of crystallographic orientation. Twinned structure mainly composed of {332}112 twin system is proposed to account for the Twin-Induced Plasticity (TWIP) effect. Thermomechanical-cycling processes are systemically applied to control a volume fraction of mechanical twins. The dissociation residual stress and passage of {332}113[beta] twin can render multiple mechanical twins form into the [beta]-phase matrix and thus induce a softening effect for enhancing uniform ductility of Ti-Nb Gum metal, attributed to well-distributed twins throughout the entire microstructure based on the 'composite effect'. Lastly, this paper reports on a heterogeneous-structured [beta]-Ti alloy with an exceptional combination of high strength and ductility, resulting from optimized hierarchical features in a lamellar microstructure. The microstructure is achieved by controlling a fraction of coarse/fine domains, spatial grain-size distribution, and different types of grain boundaries. The large degree of microstructural heterogeneity leads to obvious mechanical incompatibility and strain partitioning during plastic deformation. These experimental results demonstrate that the microstructure design can be undertaken to open new possibilities to expand the material property window between the relatively low Young's modulus related to chemical composition optimization and better formability linked to improved ductility and enhanced strain hardening.
Author: Maciej Motyka
Publisher: BoD – Books on Demand
ISBN: 183962552X
Category : Technology & Engineering
Languages : en
Pages : 156
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Book Description
Titanium alloys, due to unique physical and chemical properties (mainly high relative strength combined with very good corrosion resistance), are considered as an important structural metallic material used in hi-tech industries (e.g. aerospace, space technology). This book provides information on new manufacturing and processing methods of single- and two-phase titanium alloys. The eight chapters of this book are distributed over four sections. The first section (Introduction) indicates the main factors determining application areas of titanium and its alloys. The second section (Manufacturing, two chapters) concerns modern production methods for titanium and its alloys. The third section (Thermomechanical and surface treatment, three chapters) covers problems of thermomechanical processing and surface treatment used for single- and two-phase titanium alloys. The fourth section (Machining, two chapters) describes the recent results of high speed machining of Ti-6Al-4V alloy and the possibility of application of sustainable machining for titanium alloys.
Author: Vasisht Venkatesh
Publisher: John Wiley & Sons
ISBN: 1119296110
Category : Technology & Engineering
Languages : en
Pages : 4024
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Book Description
This book contains the Proceedings of the 13th World Conference on Titanium.
Author: Michael C. Gao
Publisher: Springer
ISBN: 3319270133
Category : Technology & Engineering
Languages : en
Pages : 524
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Book Description
This book provides a systematic and comprehensive description of high-entropy alloys (HEAs). The authors summarize key properties of HEAs from the perspective of both fundamental understanding and applications, which are supported by in-depth analyses. The book also contains computational modeling in tackling HEAs, which help elucidate the formation mechanisms and properties of HEAs from various length and time scales.
Author: Hee Young Kim
Publisher: Butterworth-Heinemann
ISBN: 0128093846
Category : Technology & Engineering
Languages : en
Pages : 222
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Book Description
Ni-free Ti-based Shape Memory Alloys reviews the fundamental issues of biomedical beta-type Ti base shape memory and superelastic alloys, including martensitic transformation, shape memory and superelastic properties, alloy development, thermomechanical treatment and microstructure control, and biocompatibility. Some unique properties, such as large nonlinear elastic behavior and low Young's modulus, observed in metastable Ti alloys are discussed on the basis of phase stability. As it is expected that superelastic Ti alloys will further expand the applications of shape memory alloys within the biomedical field, this book provides a comprehensive review of these new findings in Ti-base shape memory and superelastic alloys. - Includes coverage of phase transformations in titanium alloys - Discusses mechanical properties and alloy development - Presents a review of Ti-based shape alloys and their applications
Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2566
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Book Description
Author: Robert W. Balluffi
Publisher: John Wiley & Sons
ISBN: 0471749303
Category : Science
Languages : en
Pages : 672
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Book Description
A classroom-tested textbook providing a fundamental understandingof basic kinetic processes in materials This textbook, reflecting the hands-on teaching experience of itsthree authors, evolved from Massachusetts Institute of Technology'sfirst-year graduate curriculum in the Department of MaterialsScience and Engineering. It discusses key topics collectivelyrepresenting the basic kinetic processes that cause changes in thesize, shape, composition, and atomistic structure of materials.Readers gain a deeper understanding of these kinetic processes andof the properties and applications of materials. Topics are introduced in a logical order, enabling students todevelop a solid foundation before advancing to more sophisticatedtopics. Kinetics of Materials begins with diffusion, offering adescription of the elementary manner in which atoms and moleculesmove around in solids and liquids. Next, the more complex motion ofdislocations and interfaces is addressed. Finally, still morecomplex kinetic phenomena, such as morphological evolution andphase transformations, are treated. Throughout the textbook, readers are instilled with an appreciationof the subject's analytic foundations and, in many cases, theapproximations commonly used in the field. The authors offer manyextensive derivations of important results to help illuminate theirorigins. While the principal focus is on kinetic phenomena incrystalline materials, select phenomena in noncrystalline materialsare also discussed. In many cases, the principles involved apply toall materials. Exercises with accompanying solutions are provided throughoutKinetics of Materials, enabling readers to put their newfoundknowledge into practice. In addition, bibliographies are offeredwith each chapter, helping readers to investigate specializedtopics in greater detail. Several appendices presenting importantbackground material are also included. With its unique range of topics, progressive structure, andextensive exercises, this classroom-tested textbook provides anenriching learning experience for first-year graduate students.
Author: Marcello Cabibbo
Publisher: BoD – Books on Demand
ISBN: 9535134256
Category : Science
Languages : en
Pages : 228
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Book Description
Grain size is recognized as a key microstructural factor affecting mechanical and, to some extent, physical properties of metals and metallic materials. For this reason, all the means designed to control and modify the grain size are considered a proper way to design and tailor metallic materials with desired properties. In this sense, microstructure refinement through severe plastic deformation (SPD) techniques can be considered a key method for this purpose. A typical SPD process is currently defined as any method of metal forming under extensive hydrostatic pressure intended to impose a very high strain on a bulk solid without involving any significant change in the overall dimensions and having the ability to produce exceptional grain refinement. What makes SPD processing techniques so popular and attractive is the possibility of using them to enhance the strength behavior of conventional metallic materials by a factor of up to eight for pure metals such as copper and by some 30-50% for alloys. Despite the impressive property improvement achievable with SPD techniques, their uptake by industry has been rather sluggish. This book intends to give a panorama of the typical SPD techniques intended to optimize the mechanical and physical properties of metals through a significant grain size reduction process. Modeling for this purpose is also presented.
