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2017 | Book

Metal Matrix Nanocomposites: An Overview Read chapter Read first chapter

Aluminum and Magnesium Metal Matrix Nanocomposites

Authors: Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh

Publisher: Springer Singapore

Book Series : Engineering Materials

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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About this book

The book looks into the recent advances in the ex-situ production routes and properties of aluminum and magnesium based metal matrix nanocomposites (MMNCs), produced either by liquid or semi-solid state methods. It comprehensively summarizes work done in the last 10 years including the mechanical properties of different matrix/nanoreinforcement systems. The book also addresses future research direction, steps taken and missing developments to achieve the full industrial exploitation of such composites. The content of the book appeals to researchers and industrial practitioners in the area of materials development for metal matrix nanocomposites and its applications.

Table of Contents

Frontmatter
Chapter 1. Metal Matrix Nanocomposites: An Overview
Abstract
In this chapter, an overview on both Al and Mg based nanocomposites is given, emphasizing particularly on the importance of using reinforcements at nano length scale. The strengthening mechanisms at the basis of the reinforcing action exerted by nanoparticles (Orowan mechanism, enhanced dislocation density, grain refinement and load bearing effect) is described and their contribution discussed; modelling of the above mentioned mechanisms is also presented.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Chapter 2. Ex Situ Production Routes for Metal Matrix Nanocomposites
Abstract
Among different production routes hitherto developed for the manufacturing of metal matrix nanocomposites, a distinction can be done depending upon the matrix state during the production process, which can be molten, solid or semi-solid. In this Chapter, an overview of ex situ production routes is given, highlighting their general potential and shortcomings. Relevant case studies on the most promising and widespread casting production routes will be discussed more in detail in Chap. 3.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Chapter 3. Casting Routes for the Production of Al and Mg Based Nanocomposites
Abstract
As previously described in Chap. 2, the different production techniques for metal matrix nanocomposites (MMNCs) may be classified depending on the matrix state: liquid, solid or semi-solid. In comparison to other methods, liquid and semi-solid state MMNCs processing techniques are particularly attractive since they are potentially scalable to industrial level for the high volume production of near-net shape components. Nevertheless, such methods pose critical issues related to the low wettability of nanosized particles, generally leading to clusterization and high casting defects content. In this chapter, the main liquid and semi-solid casting routes (stir casting, compocasting, ultrasonic assisted casting and disintegrated melt deposition, DMD) will be described; the results of recent and relevant case studies on Al and Mg based nanocomposites will be summarized and discussed, by highlighting the main drawbacks of such processes.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Chapter 4. Mechanical Behavior of Al and Mg Based Nanocomposites
Abstract
This chapter provides an insight into the mechanical properties of Al and Mg based nanocomposites. Tensile and compression properties, ductility and the influence of heat treatment on mechanical behavior of both aluminum and magnesium based nanocomposites are discussed. Experimental data (hardness, tensile/compression strength, ductility) reported in recent literature works is presented and compared, to highlight the effect of different processing techniques on the mechanical response of nanocomposites.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Chapter 5. Tribological Characteristics of Al and Mg Nanocomposites
Abstract
Al and Mg nanocomposites have good mechanical properties and are potential tribological candidates for applications where weight-reduction is a critical factor, such as in automotive, aerospace and sports. This chapter presents the tribological characteristics of various Al and Mg nanocomposites. The tribological properties of wear and friction of the light-metals nanocomposites are influenced by several factors such as: process and process parameters, composition and microstructure, mechanical properties, heat treatment to enhance mechanical properties, applied external parameters of velocity and load, and formation of in situ protective films/layers. Examples of tribological investigations of nanocomposites that highlight these influencing factors are presented in the view of providing a comprehensive outlook on the tribology of light-metals nanocomposites. Some suggestions for future work are also mentioned.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Chapter 6. Future Directions
Abstract
Most of the work carried out on microstructural and mechanical characterization of Al and Mg based nanocomposites is currently based on laboratory-scale research activities. Aiming to fully exploit the potential of MMNCs at a larger scale, however, the feasibility of the manufacturing processes to produce nanocomposite components should be investigated at a much larger-scale. In this chapter, industrial scaling-up issues related to casting processes are highlighted and discussed, as well as the translation of MMNCs to the product level. Critical aspects still partially unexplored in the literature, such as fatigue properties, corrosion behavior and recycling of MMNCs will be also presented.
Lorella Ceschini, Arne Dahle, Manoj Gupta, Anders Eric Wollmar Jarfors, S. Jayalakshmi, Alessandro Morri, Fabio Rotundo, Stefania Toschi, R. Arvind Singh
Backmatter
Metadata
Title
Aluminum and Magnesium Metal Matrix Nanocomposites
Authors
Lorella Ceschini
Arne Dahle
Manoj Gupta
Anders Eric Wollmar Jarfors
S. Jayalakshmi
Alessandro Morri
Fabio Rotundo
Stefania Toschi
R. Arvind Singh
Copyright Year
2017
Publisher
Springer Singapore
Electronic ISBN
978-981-10-2681-2
Print ISBN
978-981-10-2680-5
DOI
https://doi.org/10.1007/978-981-10-2681-2

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