Texture Evolution and Their Effects on the Mechanical Properties of Duplex Mg-Li Alloy

Texture Evolution and Their Effects on the Mechanical Properties of Duplex Mg-Li Alloy PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description
Texture evolution is strongly dependent on the deformation mode during thermo-mechanical treatments. In this paper, we report the texture evolution in a duplex Mg-Li alloy. The results provide an evidence of deformation mode transition in the hexagonal-close-packed (hcp) alpha phase with various thickness reductions. The activation sequence of deformation modes is basal slip first, and then pyramidal slip during hot-rolling to a thickness reduction of 40%. The relative activity of c+a slip decreases with further thickness reduction. After annealing, basal texture is strengthened and pyramidal component disappears due to static recrystallization and grain growth. The microstructure, specifically texture evolution in both hcp alpha and body-centered cubic (bcc) beta phase and their effects on mechanical properties are quantitatively analyzed and assessed. (C) 2016 Elsevier B.V. All rights reserved.

Texture Evolution and Their Effects on the Mechanical Properties of Duplex Mg-Li Alloy

Texture Evolution and Their Effects on the Mechanical Properties of Duplex Mg-Li Alloy PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7

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Book Description
Texture evolution is strongly dependent on the deformation mode during thermo-mechanical treatments. In this paper, we report the texture evolution in a duplex Mg-Li alloy. The results provide an evidence of deformation mode transition in the hexagonal-close-packed (hcp) alpha phase with various thickness reductions. The activation sequence of deformation modes is basal slip first, and then pyramidal slip during hot-rolling to a thickness reduction of 40%. The relative activity of c+a slip decreases with further thickness reduction. After annealing, basal texture is strengthened and pyramidal component disappears due to static recrystallization and grain growth. The microstructure, specifically texture evolution in both hcp alpha and body-centered cubic (bcc) beta phase and their effects on mechanical properties are quantitatively analyzed and assessed. (C) 2016 Elsevier B.V. All rights reserved.

Severe Plastic Deformation and Thermomechanical Processing: Nanostructuring and Properties

Severe Plastic Deformation and Thermomechanical Processing: Nanostructuring and Properties PDF 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.

Magnesium Technology 2016

Magnesium Technology 2016 PDF Author: Alok Singh
Publisher: John Wiley & Sons
ISBN: 1119274796
Category : Technology & Engineering
Languages : en
Pages : 432

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Book Description
The Magnesium Technology Symposium, the event on which this collection is based, is one of the largest yearly gatherings of magnesium specialists in the world. Papers represent all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2016 covers a broad spectrum of current topics, including alloys and their properties; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; ecology; and structural applications. In addition, there is coverage of new and emerging applications. The collection includes more than 50 papers.

2021 Retrospective: Structural Materials

2021 Retrospective: Structural Materials PDF Author: John L. Provis
Publisher: Frontiers Media SA
ISBN: 2832500498
Category : Technology & Engineering
Languages : en
Pages : 174

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Book Description


Magnesium Materials

Magnesium Materials PDF Author: Yoshiki Oshida
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 311067694X
Category : Technology & Engineering
Languages : en
Pages : 822

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Book Description
The book provides an introduction to the topic of magnesium materials for biomedical applications. Additional to the background on magnesium’s physical, chemical and mechanical properties, areas of use, related diseases and pathways for biodegradation will be discussed. Also, an outlook of the future of magnesium material applications will be provided.

Magnesium Technology 2022

Magnesium Technology 2022 PDF Author: Petra Maier
Publisher: Springer Nature
ISBN: 3030925331
Category : Technology & Engineering
Languages : en
Pages : 335

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Book Description
The Magnesium Technology Symposium at the TMS Annual Meeting & Exhibition is one of the largest yearly gatherings of magnesium specialists in the world. Papers represent all aspects of the field, ranging from primary production to applications and recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2022 is a definitive reference that covers a broad spectrum of current topics, including novel extraction techniques; primary production; alloys and their production; integrated computational materials engineering; thermodynamics and kinetics; plasticity mechanisms; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; fatigue and fracture; dynamic response; structural applications; degradation and biomedical applications; emerging applications; additive manufacturing of powders; and recycling, ecological issues, and life cycle analysis.

Dependence of Microstructure Evolution, Texture, and Mechanical Behavior of a Magnesium Alloy on Thermo-mechanical Input During Friction Stir Processing

Dependence of Microstructure Evolution, Texture, and Mechanical Behavior of a Magnesium Alloy on Thermo-mechanical Input During Friction Stir Processing PDF Author: Zhenzhen Yu
Publisher:
ISBN:
Category :
Languages : en
Pages : 148

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Book Description
In this thesis, the relationship among friction stir processing (FSP) parameters, microstructure evolution, texture development, and mechanical hehavior[sic] of AZ31B Mg alloy was investigated. First of all, in order to reveal the correlation among the deformation conditions, dynamic recrystallization (DRX) mechanisms, and microstructure evolution in the Mg alloy, hot compression tests at a wide range of Zener-Hollomon parameter (Z) values were conducted. Through optical microscopic examination, it was found out that above a critical Z value, twinning influences the DRX process resulting in a more effective grain refinement, which is manifested in a significant change in the slope of the Z-d[subscript rec] relationship, where d[subscript rec] is the recrystallized grain size. Moreover, EBSD examination revealed that the twinning also contributed to a distinct change in the recrystallization texture. Compression tests were performed along both through-thickness and in-rolling-plane directions of the plate to study the orientation dependency of twinning activities and its influence on the DRX process. X-ray line profile analysis (XLPA) provides further insights by highlighting the differences in the dislocation density/types, subgrain sizes, and twin densities during the DRX processes operating with or without the twinning. Secondly, the constitutive behaviour study was applied to the investigation of microstructure evolution during FSP. By varying the key FSP parameters systematically, i.e. rotation and travel rates of the tool, a series of FSP specimens were prepared with a wide range of thermo-mechanical inputs in terms of Z. The resulting tensile behavior in the stir zone (SZ) showed a dramatic change as a function of Z, caused by a systematic change in the texture within SZ measured by neutron diffraction. A three-dimensional transient model was developed to investigate the detailed deformation history including the temperature and strain rate profiles and material flow pattern during FSP of the Mg alloy. Such deformation history can be combined with the constitutive study from the compression tests in order to analyze the developments of micro-texture and DRX grains during FSP, which will, in turn, dominate the mechanical properties. Based on the studies above, new fundamental understandings were gained on the governing mechanisms for the deformation and recrystallization processes during FSP and the influence of thermo-mechanical input during FSP on ductility enhancement in the Mg alloy.

Magnesium Technology 2017

Magnesium Technology 2017 PDF Author: Kiran N. Solanki
Publisher: Springer
ISBN: 3319523929
Category : Technology & Engineering
Languages : en
Pages : 642

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Book Description
The Magnesium Technology Symposium, the event on which this collection is based, is one of the largest yearly gatherings of magnesium specialists in the world. Papers represent all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2017 covers a broad spectrum of current topics, including alloys and their properties; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; ecology; and structural applications. In addition, there is coverage of new and emerging applications.

GaN, AIN, InN and their Alloys: Volume 831

GaN, AIN, InN and their Alloys: Volume 831 PDF Author: Christian Wetzel
Publisher: Cambridge University Press
ISBN: 9781558997790
Category : Technology & Engineering
Languages : en
Pages : 0

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Book Description
This book discusses GaN and Related Alloys and reflects an emerging emphasis on the binaries of InN and AlN. The major thrust here is the topical development of thin-film growth, bulk growth techniques, methods to cover the full ternary and quaternary alloy ranges toward InN and AlN and their characterization; strategies for structural defect reduction and their characterization; ways to better control p-type doping and its characterization; device and defect physics, including polarization effects; physics of surfaces and interfaces; and device processing techniques. In addition, advances in MBE devices, high-power electronics, RF performance of electronics, UV emitters, high-efficiency light emitters, photo and chemical sensors, as well as new applications within the group-III nitrides, are also covered. The book captures the current status of this field and will be useful for researchers working with group-III nitrides, as well as for students who seek entry into this subject.

Proceedings of the 8th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-8)

Proceedings of the 8th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-8) PDF Author: FernD.S. Marquis
Publisher: Springer
ISBN: 3319487647
Category : Technology & Engineering
Languages : en
Pages : 3431

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Book Description
PRICM-8 features the most prominent and largest-scale interactions in advanced materials and processing in the Pacific Rim region. The conference is unique in its intrinsic nature and architecture which crosses many traditional discipline and cultural boundaries. This is a comprehensive collection of papers from the 15 symposia presented at this event.