Browsing by Subject "Powder metallurgy"
Now showing items 1-20 of 38
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A parallel finite-element framework for the thermal analysis of metal additive manufacturing with powder methods
(Universitat Politècnica de Catalunya, 2016-10-21)
Master thesis
Restricted access - author's decisionVirtual design process and validation of products built with metal additive manufacturing technologies with powder methods is not possible without a coupled thermomechanical numerical analysis tool that is capable of ... -
A review on mechanical alloying and spark plasma sintering of refractory high-entropy alloys: Challenges, microstructures, and mechanical behavior
(Elsevier, 2024-05-31)
Article
Open AccessRefractory high-entropy alloys (RHEAs) are promising candidates for those applications requiring of strong materials at high temperatures with elevated thermal stability and excellent oxidation, irradiation, and corrosion ... -
Advanced characterization of two novel Fe-rich high entropy alloys developed for laser powder bed fusion in the Al-Co-Cr-Fe-Ni-Zr system
(2022-12-01)
Article
Open AccessLaser powder bed fusion (LPBF) was used to manufacture two high entropy alloys (HEAs) within the Al-Co-Cr-Fe-Ni-Zr system. The selected compositional ranges were similar to alumina forming austenitic (AFA) steels but ... -
Aplicación del ensayo brasileño a la determinación del comportamiento a fractura de compactos pulvimetalúrgicos
(Centre de Publicacions d'Abast (CPDA - ETSEIB), 1999)
Conference report
Open Access -
Biomedical applications of powder metallurgy
(Elsevier, 2021-09-01)
Part of book or chapter of book
Restricted access - publisher's policyThe performance and properties of Titanium (Ti) and its alloys can be fully exploited for biomedical applications such as orthopedic and dental implants, when porous structures are used. Such Ti structures can matched the ... -
Characterization and optimization of Cu-Al2O3 nanocomposites synthesized via high energy planetary milling: a morphological and structural study
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-22)
Article
Open AccessThis study examines the synthesis and characterization of a copper–alumina nanocomposite powder. Mechanical milling is employed to synthesize the powder, and a holistic analysis is conducted to evaluate its morphological ... -
Cobalt manganese based coatings via inkjet printing for metallic interconnects in solid oxide cell applications (B0516)
(2018)
Conference lecture
Open AccessThe lowering of the operational temperature of Solid Oxide Cells (SOCs) has made possible the use of ferritic stainless steels (FSS) produced by conventional powder metallurgic (PM). FSS can ensure good electrical conductivity, ... -
Development of tantalum scaffold for orthopaedic applications produced by space-holder method
(2015-10-15)
Article
Open Access
Covenantee: University of Minnesota School of DentistryIn the present study, production of tantalum porous scaffolds using the space holder technique was performed. The effect of size and content of sodium chloride particles, used as space holder, as well as compacting pressure ... -
Disseny de la matriceria per a la compactació d’una peça PM en una premsa multiplat
(Universitat Politècnica de Catalunya, 2024-11)
Bachelor thesis
Restricted access - confidentiality agreement
Covenantee: AMES PM TECH CENTER, S.A.El món de la fabricació de components metàl·lics està en constant desenvolupament per millorar els resultats de les peces. AMES Sintered Metallic Components és una empresa dedicada a la fabricació de components metàl·lics ... -
Effect of heat treatments on the mechanical and microstructural behavior of a hypoeutectic Al alloy obtained by laser power bed fusion
(2022-11)
Article
Open AccessLarge gains in strength and ductility are of little significance if the material’s anisotropy is high. Therefore, improving the mechanical properties and reducing the anisotropy of Al alloys obtained by additive manufacturing ... -
Effect of Nb and Mo on the hot ductility behavior of a high-manganese austenitic Fe-21Mn-1.3Al-1.5Si-0.5C TWIP steel
(2014-10-20)
Article
Restricted access - publisher's policyThis research work studies the influence of single microalloying elements (Nb and Mo) and the solidification route on the hot ductility behavior of a high-manganese austenitic Twinning Induced Plasticity (TWIP) steel. For ... -
Estudi i definició del procés de fabricació d'un component metàl·lic d'un pretensor d'un cinturó de seguretat
(Universitat Politècnica de Catalunya, 2016-01)
Bachelor thesis
Restricted access - author's decisionEn el present treball presenta l’estudi i la definició del procés de fabricació d’un element metàl·lic, concretament d’una lleva excèntrica que forma part d’un pretensor, un mecanisme del cinturó de seguretat. Tot aquest ... -
Estudio experimental del llenado de moldes pulvimetalúrgicos
(2005-10)
Article
Open AccessEn el proceso de conformado pulvimetalúrgico, la consolidación del polvo se inicia con el llenado del molde en el que se fabricará la preforma porosa, el cuál está caracterizado por la distribución de densidades del polvo ... -
Etude du nickel fritté au SPS et de l’écrouissage du Fe-3%Si GO
(Universitat Politècnica de Catalunya / Université de Caen Basse-Normandie, 2011)
Master thesis (pre-Bologna period)
Restricted access - author's decisionLes objectifs de ce projet consistent à caractériser deux types de matériaux métalliques. La première partie porte sur le frittage d’une poudre de nickel pure par Spark Plasma Sintering (SPS) et la seconde s’intéresse à ... -
Finite element modelling of ejection cracks in powder metallurgy die compaction processes: case study
(2012)
Article
Open AccessTo date, the modelling of crack formation during the ejection stage in powder metallurgy die compaction processes has fallen outside the scope of conventional finite element studies on this process. In this paper, we attempt ... -
Flow regime analyses during the filling stage in powder metallurgy processes: experimental study and numerical modelling
(2011-01)
Article
Open AccessExperimental and numerical studies of powder flow during the die filling stage in powder metallurgy cold compaction processes are presented. An experimental setting consisting of a horizontal pneumatically activated ... -
High-temperature wettability in hard materials: Comparison of systems with different binder/carbide phases and evaluation of C addition
(Elsevier, 2023-02-01)
Article
Open AccessMetal-ceramic wettability is a decisive parameter in the high-temperature sintering of hard materials. Wettability tests enable the study of this property with minimum material waste, especially useful in the search of ... -
Influència dels paràmetres de molturació en els propietats de materials compostos base Al-12Si reforçats amb un 20% de partícules ceràmiques de SiC
(Universitat Politècnica de Catalunya, 2011-01-27)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Centre de Disseny d’Aliatges Lleugers i Tractaments de SuperfíciesLes necessitats de la tecnologia moderna, juntament amb les mesures mediambientals cada cop més restrictives, han impulsat en els últims anys a la recerca de nous materials d’elevades prestacions que superin les propietats ... -
Ligantes base agua para pulvimetalurgia
(Universitat Politècnica de Catalunya, 2010-02)
Master thesis
Restricted access - author's decisionLa problemática de salud laboral y medioambiental que presenta el tricloroetileno (TCE: R40, 45, 52/53) ha condicionado en gran medida los esfuerzos realizados para su sustitución. Uno de los procesos afectados es la ... -
Micropillar compression of Ti(C,N)-FeNi cermets: microstructural, processing, and scale effects
(Elsevier, 2022-09)
Article
Open AccessThe influence of microstructure and processing route on the small-scale mechanical response as well as on the deformation and failure mechanisms of Ti(C,N)-FeNi cermets were investigated by uniaxial compression of micropillars ...
