Microstructure and Mechanical Properties of Semi-solid Magnesium Alloys PDF Download
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Author: Stian Sannes
Publisher:
ISBN: 9788271196592
Category : Magnesium alloys
Languages : en
Pages : 167
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Book Description
Author: Stian Sannes
Publisher:
ISBN: 9788271196592
Category : Magnesium alloys
Languages : en
Pages : 167
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Book Description
Author: Shahrooz Nafisi
Publisher: MDPI
ISBN: 3039289756
Category : Technology & Engineering
Languages : en
Pages : 228
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Book Description
Semi-solid metal (SSM) processing, as a viable alternative manufacturing route to those of conventional casting and forging, has not yet been fully exploited despite nearly half a century since its introduction to the metal industry. The slow pace of adopting SSM routes may be due to various reasons, including capital costs, profit margins, and, most importantly, the lack of detailed analysis of various SSM processes in open literature to confidently establish their advantages over more conventional routes. Therefore, the SSM community must disseminate their findings more effectively to generate increased confidence in SSM processes in the eyes of our industrial leaders. As such, we have embarked on the task to invite the leaders in SSM research to share their findings in a Special Issue dedicated to semi-solid processing of metals and composites. SSM processing takes advantage of both forming and shaping characteristics usually employed for liquid and solid materials. In the absence of shear forces, the semi-solid metal has similar characteristics to solids, i.e., easily transferred and shaped; by applying a defined force, the viscosity is reduced and the material flows like a liquid. These unique dual characteristics have made SSM routes attractive alternatives to conventional casting on an industrial scale. With the intention of taking full advantage of SSM characteristics, it is crucial to understand SSM processing, including topics such as solidification and structural evolution, flow behavior through modelling and rheology, new processes and process control, alloy development, and properties in general. This Special Issue focuses on the recent research and findings in the field with the aim of filling the gap between industry and academia, and to shed light on some of the fundamentals of science and technology of semi-solid processing.
Author: Heinrich Möller
Publisher: Trans Tech Publications Ltd
ISBN: 3038138975
Category : Technology & Engineering
Languages : en
Pages : 600
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Book Description
These proceedings of the 12th International Conference on Semi-Solid Processing of Alloys and Composites contain the papers which were presented at the conference, held in Cape Town (South Africa) between the 8th and 11th October 2012. The aim of these international conferences is to provide a forum where the leading researchers, engineers and industrialists in this field can gather in order to share their work and knowledge, and hold lively discussions concerning current fundamental issues in semi-solid metal processing. Volume is indexed by Thomson Reuters CPCI-S (WoS). The contents are divided into 5 distinct sections: Microstructure and Properties; Process Development; Modeling, Simulation and Rheology; Materials Development and Alloy Design and Industrial Applications.
Author: C.G. Kang
Publisher: Trans Tech Publications Ltd
ISBN: 3038130826
Category : Technology & Engineering
Languages : en
Pages : 824
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Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume is dedicated to the science and technology of the semi-solid processing of metals.
Author: Thomas Wilkes Robinson
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages :
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Book Description
In recent years, additive manufacturing (AM) has gained prominence in rapid prototyping and production of structural components with complex geometries. Magnesium alloys, whose strength-to-weight ratio is superior compared to steel and aluminum alloys, have shown potential in lightweighting applications. However, commercial beam-based AM technologies have limited success with magnesium alloys due to vaporization and hot cracking. Therefore, as an alternative approach, we propose the use of a near net-shape solid-state additive manufacturing process, Additive Friction Stir Deposition (AFSD), to fabricate magnesium alloys in bulk. In this study, a parametric investigation was performed to quantify the effect of process parameters on AFSD build quality including volumetric defects and surface quality in magnesium alloy AZ31. In order to understand the effect of the AFSD process on structural integrity in the magnesium alloy AZ31, in-depth microstructure and mechanical property characterization was conducted on a bulk AFSD build fabricated with optimized process parameters. Results of the microstructure analysis of the as-deposited AFSD build revealed bulk microstructure similar to wrought magnesium alloy AZ31 plate. Additionally, similar hardness measurements were found in AFSD build compared to control wrought specimens. While tensile test results of the as-deposited AFSD build exhibited a 20 percent drop in yield strength, nearly identical ultimate strength was observed compared to the wrought control. The experimental results of this study illustrate the potential of using the AFSD process to additively manufacture Mg alloys for load bearing structural components with achieving wrought-like microstructure and mechanical properties.
Author: Barry L. Mordike
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 764
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Book Description
Author: Annalisa Pola
Publisher: Trans Tech Publications Ltd
ISBN: 3036413847
Category : Technology & Engineering
Languages : en
Pages : 200
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Book Description
Special topic volume with invited peer-reviewed papers only
Author: Hajo Dieringa
Publisher: Frontiers Media SA
ISBN: 2889712842
Category : Technology & Engineering
Languages : en
Pages : 192
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Book Description
Author: Frank Czerwinski
Publisher: BoD – Books on Demand
ISBN: 9535117289
Category : Technology & Engineering
Languages : en
Pages : 182
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Book Description
Magnesium alloys with their unique physical and chemical properties are important candidates for many modern engineering applications. Their density, being the lowest of all structural metals, makes them the primary choice in global attempts aimed at reducing the weight of transportation vehicles. However, magnesium also creates challenges at certain stages of raw alloy melting, fabrication of net-shape components and their service. The first one is caused by very high affinity of magnesium to oxygen, which requires protective atmospheres increasing manufacturing cost and heavily contributing to greenhouse gas emissions. The second challenge relates to very high corrosivity of liquid magnesium towards materials it contacts. This imposes restrictions on the selection of materials used to contain, transfer or process molten magnesium during manufacturing operations. A mixture of unique benefits and serious challenges of magnesium alloys in solid and liquid states described here makes the book very useful for a broad audience of scientists and engineers from academia and industry.
Author: Michael Modigell
Publisher: Trans Tech Publications Ltd
ISBN: 3038266035
Category : Technology & Engineering
Languages : en
Pages : 542
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Book Description
Collection of selected, peer reviewed papers from the 13th International Conference on Semi-Solid Processing of Alloys and Composites (S2P 2014), September 15-17, 2014, Muscat, Sultanate of Oman. The 68 papers are grouped as follows: Chapter 1: Material Development and Characterisation, Chapter 2: Rheology, Modelling and Simulation, Chapter 3: Process Development, Chapter 4: Industrial Application
