@article{
	11589_76924,
	author = { SERIO  Livia Maria  and  PALUMBO  Davide  and  DE FILIPPIS  Luigi Alberto Ciro  and  GALIETTI  Umberto  and  LUDOVICO  Antonio Domenico },
	title = {Effect of friction stir process parameters on the mechanical and thermal behavior of 5754-H111 aluminum plates},
	year = {2016},
	journal = {MATERIALS}
}
@conference{
	11589_18377,
	author = { De Filippis L  and  Galietti U  and  Ludovico A  and  Serio L  and  Palumbo D },
	title = {ANALISI DEL PROCESSO DI FRICTION STIR WELDING APPLICATO ALLA LEGA AA 5754 H111: COMPORTAMENTO MECCANICO E TERMICO DEI GIUNTI},
	year = {2014},
	booktitle = {Atti del 43° CONVEGNO NAZIONALE AIAS},
	abstract = {Il presente lavoro è finalizzato ad esaminare l'influenza dei parametri di processo sulle variazioni delle proprietà meccaniche subite dalla lega di alluminio AA5754-H111, saldata mediante la tecnica di Friction Stir Welding (FSW). Il processo è stato monitorato mediante l’utilizzo di termocamere ad infrarossi, al fine di correlare le informazioni derivanti dai campi termici registrati sul materiale durante la saldatura, con eventuali mutazioni del comportamento meccanico dei giunti saldati. Le indagini termiche hanno consentito di ricavare la distribuzione delle temperature in prossimità di tutti i cordoni di saldatura. Da esse è emersa una rilevante asimmetria termica tra i lembi dei giunti e una distribuzione delle temperature non uniforme dall’inizio alla fine delle saldature. Tali risultati hanno evidenziato come le tecniche termografiche rappresentino un importante strumento di controllo e di analisi delle proprietà meccaniche dei giunti realizzati con il processo di FSW.},
	keywords = {Friction Stir Welding},
	pages = {366--376}
}
@conference{
	11589_20461,
	author = { R  Surace  and  G  Marinzuli  and  L A C  De Filippis  and  Ludovico A },
	title = {Effect of Laser Welding on Intermetallic Phase Formation between Aluminium Alloys Foam and Steel Bulk Skin},
	year = {2014},
	booktitle = {Proceedings of International Conference CellMat 2014},
	abstract = {Metal foams are conquering an increasing interest in the industrial stage. Aluminium foams have a high potential for use in weight-sensitive construction parts. The stiffness to weight ratio is the main criteria for material selection in light-weight design. Many processes are available to manufacture metal foams classified according to the state in which the metal is processed (liquid,
solid, vapour or a solution of metal ions) and similarly different techniques can be applied to join the foam to bulk elements. In this context, the aim of this work is to perform an experimental
study of laser welding for realising parts with an aluminium foam core (AlSi10 and AlSi0.6Mg1) and a steel external skin. The goal of the paper is to point out the feasibility of the process with the formation of an intermetallic phase between steel and aluminium and then the influence of the main process parameters. The experimentation was carried out in two steps: a preliminary study about an overlapped joint between steel and foam sheets and then the joining of steel hollow
profile and aluminium foam obtained by a precursor material foamed directly inside the profile. A full
factorial plan was designed by varying different process parameters referred to the laser (power of the laser source, execution speed, heat input and focal distance of the laser beam) while, except the precursor material, all the factors relative to the foam were kept constant. As results an intermetallic phase formation between aluminium foams and a stainless steel sheets and moulds have been obtained observed by micrograph examination.},
	keywords = {Aluminium Alloys Foam; Laser Welding; Intermetallic Phase Formation}
}
@article{
	11589_5513,
	author = { De Filippis L  and  Galietti U  and  Ludovico A  and  Serio L  and  Palumbo D },
	title = {ANALISI DEL PROCESSO DI FRICTION STIR WELDING APPLICATO ALLA LEGA AA 5754 H111: COMPORTAMENTO MECCANICO E TERMICO DEI GIUNTI},
	year = {2014},
	journal = {RIVISTA ITALIANA DELLA SALDATURA},
	volume = {Issue 4 , luglio-agosto 2014},
	abstract = {L’attività oggetto del presente articolo è finalizzata allo studio dell'influenza dei parametri di processo sulle proprietà meccaniche di giunti saldati in lega di alluminio AA 5754 H111 dello spessore di 6 mm, mediante Friction Stir Welding (FSW). 
Le analisi compiute hanno coinvolto parametri di processo quali velocità di avanzamento e velocità di traslazione, imposte all'utensile durante la saldatura. Nel corso delle prove eseguite sono state monitorate le temperature raggiunte per mezzo di termocoppie e di termocamere a infrarossi. 
I campi termici rilevati durante il processo di FSW hanno fornito importanti informazioni circa le distribuzioni delle temperature per ogni combinazione di parametri di processo assegnata. Le osservazioni più rilevanti hanno riguardato le disuniformità termiche registrate lungo la lunghezza di tutti i giunti saldati e le asimmetrie in termini di temperature massime raggiunte tra i due lati della saldatura. In particolare è stato osservato che le temperature più elevate sono sempre state registrate lungo il Retreating Side rispetto all’Advancing Side.
Tali risultati attestano l’importanza delle tecniche termografiche quale strumento utilissimo ed efficace per il controllo e il monitoraggio delle numerose variabili che entrano in gioco nel processo FSW. 
Inoltre le prove meccaniche statiche condotte sui giunti precedentemente monitorati, hanno comprovato una distribuzione non uniforme anche delle caratteristiche resistenziali lungo la direzione di saldatura. Tali valutazioni hanno portato ad affermare che, in base ai parametri di processo prescelti e al set-up delle attrezzature impiegato, il processo non poteva essere considerato “stazionario”. 
Alla luce di tali risultati si è ipotizzato quindi si è ipotizzato un legame tra la variazione delle proprietà termiche e la disuniformità delle proprietà meccaniche degli stessi giunti, lungo la direzione di saldatura. Infine è stata dimostrata una influenza rilevante dei parametri di processo impiegati sulle caratteristiche resistenziali, mediante lo sviluppo dell’ANOVA, ovvero Analisi della Varianza dei risultati ottenuti},
	keywords = {Friction Stir Welding; LEGA AA 5754 H111},
	pages = {509--524}
}
@article{
	11589_657,
	author = { Gaia Marinzuli  and  Luigi Alberto Ciro De Filippis  and  Rossella Surace  and  Ludovico A },
	title = {Effect of processing parameters on morphology and plateau stress of 
AlSi and AlSiMg foams},
	year = {2014},
	journal = {PROCEDIA MATERIALS SCIENCE},
	volume = {4 (2014)},
	abstract = {In this work, aluminium foams produced by the powder metallurgy route are evaluated. This kind of aluminium foams have a 
high potential in weight-sensitive construction parts. The aim of this study is to evaluate the properties (in terms of foam 
morphology and plateau stress) and to optimize three control factors chosen: temperature, precursor material and mean of 
cooling. AlSi10 and AlSi0.6Mg1commercial foamable precursors are the starting materials. Different set of samples are realized 
following the DoE approach; manufactured samples have been morphologically and mechanically analyzed to evaluate what 
level of each parameter better influences the final quality of the foam. Temperature and mean of cooling have a great influence
on the mechanical behavior of the foamed structure.},
	keywords = {Aluminum foam, Repeatability, Morphological Characterization, Compressive test, Plateau Stress},
	doi = {10.1016/j.mspro.2014.07.613},	
	pages = {115--120}
}
@conference{
	11589_18454,
	author = { Campanelli S  and  De Filippis L  and  Ludovico A  and  Angelastro A  and  Contuzzi N  and  Serio L  and  Casavola C  and  Pappalettere C  and  Moramarco V },
	title = {TEchnologies for Production, and Maintenance applied to Aeronautic Propulsion (TEMA project)},
	year = {2014},
	booktitle = {Proceeedings of 1st Workshop on the state of the Art and Challenges of Research Efforts at Poliba},
	keywords = {aeronautic propulsion; maintenance}
}
@conference{
	11589_18457,
	author = { Ludovico A  and  Angelastro A  and  Campanelli S  and  Casalino G  and  Casavola C  and  Contuzzi N  and  De Filippis L  and  Moramarco V  and  Serio L },
	title = {Innovative Techniques of Joining for Advanced Materials in Aeronautical Applications},
	year = {2014},
	publisher = {Gangemi Editore},
	address = {Roma},
	booktitle = {proceedings of 1st Workshop on the state of the Art and Challenges of Research Efforts at Poliba},
	keywords = {Joining; advanced materials; aeronautical applications}
}
@conference{
	11589_20373,
	author = { De Filippis L  and  Campanelli S  and  Ludovico A  and  Angelastro A  and  Contuzzi N  and  Marinzuli G  and  Serio L  and  Surace R },
	title = {Cellular metal materials:production and characterization of aluminum foam},
	year = {2014},
	publisher = {Gangemi Editore},
	address = {Roma},
	booktitle = {Proceedings of 1st Workshop on the State of the Art and Challenges of Research Efforts at Poliba},
	keywords = {Cellular metal materials; aluminum foam}
}
@conference{
	11589_23728,
	author = { Campanelli S  and  Contuzzi N  and  De Filippis L  and  Angelastro A  and  Ludovico A  and  Serio L },
	title = {Advanced Lightweight Structures Fabricated by Selective Laser Melting},
	year = {2014},
	publisher = {Gangemi Editore},
	address = {Roma},
	booktitle = {Proceedings of 1st Workshop on the State Of the Art and Challenges of Research Efforts at Poliba},
	keywords = {Advanced Lightweight Structures ; Selective Laser Melting}
}
@conference{
	11589_23353,
	author = { Pappalettere C  and  De Palma P  and  Pascazio G  and  De Tullio M  and  Camporeale S  and  Dambrosio L  and  Fortunato B  and  Torresi M  and  Fornarelli F  and  Carbone G  and  Afferrante L  and  Bottiglione F  and  Mantriota G  and  Foglia MM  and  Demelio G  and  Ciavarella M  and  Lamberti L  and  Boccaccio A  and  Ludovico AD  and  Csmpanelli SL  and  De Filippis LAC  and  Tricarico L  and  Palumbo G  and  Sorgente D  and  Scintilla LD  and  Galantucci LM  and  Percoco G  and  Lavecchia F  and  Casavola C  and  Naso N  and  Lino P  and  Maione G  and  Stasi S  and  Turchiano B  and  Cupertino F },
	title = {Advanced technologies for reduction of polluting emissions, fuel consumption and
operating costs of Heavy Duty engines, INNOVHEAD},
	year = {2014},
	volume = {Track A},
	booktitle = {Atti del "1st WORKSHOP on the State of the art and Challenges Of Research Efforts @ POLIBA"}
}
@article{
	11589_76974,
	author = { Serio  L M  and  De Filippis  L  A C  and  Palumbo  D  and  Galietti U  and  Ludovico  A D },
	title = {Analysis of the Friction Stir Welding process applied to the alloy AA 5754 Hill: Thermal and mechanical behavior of the joints | [Analisi del processo Friction Stir Welding applicato alla lega AA 5754 H111: comportamento meccanico e termico dei giunti]},
	year = {2014},
	journal = {RIVISTA ITALIANA DELLA SALDATURA}
}
@article{
	11589_52198,
	author = { Marinzuli G  and  De Filippis L A C  and  Surace R  and  Ludovico A },
	title = {A Preliminary Study on Adhesion on Steel Cylinder Filled with Aluminum Foam},
	year = {2013},
	journal = {INTERNATIONAL JOURNAL OF METALS}
}
@article{
	11589_51920,
	author = { R SURACE  and  G MARINZULI  and  L A C DE FILIPPIS  and  LUDOVICO A },
	title = {I processi di fonderia per la produzione di schiume di alluminio},
	year = {2011},
	journal = {FONDERIA PRESSOFUSIONE},
	pages = {22--30}
}
@conference{
	11589_18440,
	author = { Marinzuli G  and  De Filippis L A C  and  Surace R  and  Ludovico A },
	title = {A preliminary study on adhesion on steel cylinder filled with aluminum foam},
	year = {2011},
	booktitle = {Proceedings X Convegno A.I.Te.M.}
}
@inbook{
	11589_12004,
	author = { Surace R  and  De Filippis L },
	title = {Investigation and comparison of aluminium foams manufactured by different techniques},
	year = {2010},
	publisher = {Scyio},
	address = {Rijeka},
	booktitle = {Advanced Knowledge Application in Practice},
	abstract = {Cellular metals offer a large potential for industrial application. Nevertheless, besides the
costs, there are a lot of technical improvements necessary in order to gain more widespread
use. The reasons for the lack of applications, since now, are multiple and they depend from
the physical properties of foams that are still not good enough and not completely
experienced, and from the insufficient spreading of research results to designers.
To fulfill parts of these requirements, this work investigates in detail three foam production
processes, studies the effect of modifications to standard manufacturing methods, clarifies
the influence of process parameters on the structure of foams, characterises relevant
properties, and finally discusses the difference between powder or melt routes. During
experimentation hundreds of samples were realised to reach these objectives. Moreover
mechanical, physical, and microstructural properties of the produced foams have been
studied using various techniques including compression testing, scanning electron
microscopy, visual inspection, and software measurement tool. The three methods for
manufacturing aluminium foams, applied in this investigation, are named TiH2, SDP and
MGI. Two of them (TiH2 and SDP) start from powdered aluminium as row material, while
MGI starts from melt aluminium. Moreover TiH2 and MGI methods let the production of
closed cells foam while SDP of open cells foam named, more correctly, metal sponge.
The term ‘‘foam’’ was firstly reserved for a dispersion of gas bubbles in a liquid. The
morphology of this type of foams can be preserved by letting the liquid solidify, thus
obtaining what is called a ‘‘solid foam’’. When speaking of ‘‘metallic foams’’ one generally
means a solid foam. The liquid metallic foam is a stage that occurs during the fabrication of
the material. For metallic systems it is possible to define the following classification
according with Babcsan et al. (2003):
•
cellular metals are materials with a high volume fraction of voids made up of an
interconnected network of walls and membranes;
•
porous metals have isolated spherical pores and a porosity level of usually less than
about 70%;
•
metal foams are a soubgroup of cellular metals usually having a polyhedral cells with
closed or open cells (even if there are no membranes across the faces and the voids are
inteconnected, the better definition is metal sponges).},
	keywords = {Aluminium Foams; Manufacturing Techniques; Characterization},
	url = {http://www.intechopen.com/books/advanced-knowledge-application-in-practice/investigation-and-comparison-of-aluminium-foams-manufactured-by-different-techniques},
	doi = {10.5772/296},	
	pages = {96--118}
}
@inbook{
	11589_12310,
	author = { De Filippis L  and  Surace R },
	title = {Scale-up of Aluminium Foam Production},
	year = {2010},
	publisher = {Maximilian Lackner MBA ProcessEng Engineering GmbH},
	address = {VIENNA},
	booktitle = {Scale up in Metallurgy}
}
@article{
	11589_444,
	author = { Surace R  and  De Filippis L  and  Ludovico A  and  Boghetich G },
	title = {Application of Taguchi method for the multi-objective optimization of aluminium foam manufacturing parameters},
	year = {2010},
	journal = {INTERNATIONAL JOURNAL OF MATERIAL FORMING},
	volume = {3 (1)},
	abstract = {In this study the Taguchi method is used to find
the optimal process parameters for aluminium foam
manufacturing. Porous metals are the unique materials used
for light weight structural components, for filters and
electrodes and for shock or sound absorbing products.
Recently, interesting foaming technology developments
have proposed metallic foams as a valid commercial
chance. Metallic foam manufacturing techniques include
solid state powder methods, gas blowing processes, metal
deposition onto a polymer precursor and liquid state
processing. The aluminium foams presented in this study
are produced by the powder metallurgy route starting from
aluminium powders with titanium hydride as the foaming
agent. During the experimental work, many samples are
made by utilizing the combination of process parameters
based on Taguchi orthogonal design. Three manufacturing
parameters are studied: the silicon carbide content in
powder mixture, the compaction pressure and the foaming
temperature. The Taguchi method is applied to design an
orthogonal experimental array and a multi-objective optimization
approach is then proposed by simultaneously
minimizing the relative density and maximizing the
absorbed energy. Verification test is also performed to
prove the effectiveness of the presented technique.},
	keywords = {Aluminium foam; Powder metallurgy; Taguchi method . Multi-objective optimization},
	doi = {10.1007/s12289-009-0409-9},	
	pages = {1--5}
}
@article{
	11589_4599,
	author = { DE GIORGI M  and  SCIALPI A  and  PANELLA F W  and  DE FILIPPIS L },
	title = {Effect of shoulder geometry on residual stress and fatigue properties of AA6082 fsw joints},
	year = {2009},
	journal = {JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY},
	volume = {23},
	abstract = {The tool geometry is a crucial characteristic of the friction stir welding (FSW) process; its design is the key to the successful FSW application for a wide range of materials and thicknesses improving the weld strength and fatigue life. The present study investigates the influence of three shoulder geometries on the FSW joint performance, in terms of residual stresses state, microhardness profile and mechanical properties of 1.5 mm thick AA 6082-T6 FSW joints in the butt-joint configuration. The three tool geometries are characterized by three different shoulders: a shoulder with scroll, a shoulder with a shallow cavity, and a flat shoulder. Transverse and longitudinal tensile tests at room temperature were performed in order to evaluate the mechanical properties, respectively, of the joints and of the stirred zone, while the fatigue tests were performed transversally to the joint line.},
	keywords = {AA6082T6 - Fatigue - Friction Stir Welding - Shoulder geometry - Residual stresses},
	url = {http://www.springerlink.com/content/x1221k8573201n13/},
	doi = {10.1007/s12206-008-1006-4},	
	pages = {26--35}
}
@article{
	11589_525,
	author = { R  SURACE  and  L A C  DE FILIPPIS  and  LUDOVICO A  and  G  BOGHETICH },
	title = {Influence of processing parameters on aluminium foam produced by space holder technique},
	year = {2009},
	journal = {MATERIALS & DESIGN},
	volume = {30 (6)},
	abstract = {The interesting properties of metal foams as light weight, good energy absorption, low thermal conductivity,
recyclability have spurred new process developments with the goal to obtain materials with a good
relation between properties and costs.
The different manufacturing methods are classified according to the starting metal state: liquid, powdered
or ionized. The aim of this study is to evaluate the morphological and mechanical foam properties
and to optimise the process parameters of a space holder method starting from powders: the Sintering
and Dissolution Process (SDP).
During the experimental work the samples have been realised following the principles of Design Of
Experiment (DOE). The analyzed parameters are: the composition, the pressure and the sintering time.
The final evaluations of the most important features (relative density and plateau stress) have been made
by ANOVA statistical analysis to identify the most influencing variables on foam quality.},
	doi = {10.1016/j.matdes.2008.09.027},	
	pages = {1878--1885}
}
@article{
	11589_8952,
	author = { R  SURACE  and  L A C  DE FILIPPIS  and  E  NIINI  and  LUDOVICO A  and  J ORKAS },
	title = {Morphological Investigation of Foamed Aluminum Parts Produced by Melt Gas Injection},
	year = {2009},
	journal = {ADVANCES IN MATERIALS SCIENCE AND ENGINEERING},
	volume = {2009 - article ID 506024},
	doi = {10.1155/2009/506024},	
}