Micromechanical Characterization of Additively Manufactured Ti-6Al-4V Parts Produced by Electron Beam Melting

2021-08-01
Özerinç, Sezer
KAŞ, MUSTAFA
Motallebzadeh, Amir
Nesli, Safak
Duygulu, Ozgur
YILMAZ, OĞUZHAN
Ti-6Al-4V is one of the most promising alloys for electron beam melting (EBM) of structural parts due to its outstanding properties and its extensive use in the aerospace, automotive, and energy industries. In this study, we report a detailed and systematic micromechanical characterization of additively manufactured Ti-6Al-4V parts produced via EBM. The specimens were characterized by microhardness, nanoindentation, micropillar compression, and microscratch measurements. The results show that the Ti-6Al-4V exhibits a strong indentation size effect and higher strain rate sensitivity compared to those obtained from macroscale measurements. The high scratch resistance and the high hardness of the alloy at small indentation depths suggest that the EBM-produced Ti-6Al-4V parts can provide good performance in service under sliding wear conditions.

Suggestions

Microstructure hierarchy - Mechanical property relationship for hypereutectic Al-Si alloy powders solidified far from equilibrium
Kalay, Yunus Eren; Chumbley, L.s. (2006-12-01)
Microstructural selection in aluminum silicon powder alloys can directly influence the consolidated materials' mechanical properties. However, due to processing and characterization difficulties, a complete understanding of powder microstructure as a function of undercooling and solidification velocity, and the role microstructure plays on mechanical properties, remains an elusive goal. In this study high pressure gas atomization processing was used to produce rapidly solidified hypereutectic Al-Si alloys. ...
Polystyrene-based and carbon fabrİc-reİnforced polymer composİtes containing carbon nanotubes: preparation,modification and characterization
Erkmen, Berrak; Bayram, Göknur; Department of Chemical Engineering (2020-11-23)
Carbon Fabric-Reinforced Polymers (CFRPs) attract attention due to their high mechanical properties, electrical conductivity, and providing weight reduction solutions in aerospace, automotive, marine, and energy industries. Since recycling, long processing times, non-visible damages, and complex repair procedures of thermoset-based CFRPs cause problems, studies are performed on the application of thermoplastic-based CFRPs. This study aims to produce polystyrene (PS)-based and carbon nanotubes (CNTs) and car...
Microstructural and dielectric properties of naphthalene based polyamide/β-Ni(OH)2 nanocomposites
Sezer, Selda; Öz, Erdinc; ALTIN, SERDAR; Vural, Sema; GÜLTEK, AHMET; KÖYTEPE, SÜLEYMAN; Nilüfer Kıvılcım, F. (2018-01-01)
Background: Aromatic polyamides are important materials having outstanding thermal, electronic and mechanical properties among high performance polymers and industrial plastics. In addition, aromatic polyamides can be utilized in electronic devices with their low dielectric constant which indicates the storage capacity of these devices. Objective: Free volume is very important for dielectric materials and increase in free volume of a polymer reduces its dielectric constant. The aims of the current study are...
Synthesis and characterization of high temperature resistant bismaleimide based resins and their composites
Günalp, Süreyya Esin; Küçükyavuz, Savaş; Department of Chemistry (2010)
Bismaleimide resins are important in aerospace applications as matrix component of composite materials due to their high thermal and mechanical properties. 4,4’-bismaleimidodiphenylmethane (BMI) which is the most widely used bismaleimide, was synthesized starting from maleic anhydride and 4,4’-diaminodiphenylmethane (MDA). N,N’-diallylaminodiphenyl methane (ADM), N,N’-diallylaminodiphenyl sulfone (ADS) and N,N’-diallyl p-phenyl diamine (PDA) were synthesized by allylating primary aromatic diamines. Nine dif...
Micromechanical Modelling of Carbon Nanotube Reinforced Composite Materials with a Functionally Graded Interphase
Gülaşık, Hasan; Göktepe, Serdar; Gürses, Ercan (null; 2018-10-10)
This paper introduces a new method of determining the mechanical properties of carbon nanotube-polymer composites using a multi-inclusion micromechanical model with functionally graded phases. The nanocomposite was divided into four regions of distinct mechanical properties; the carbon nanotube, the interface, the interphase and bulk polymer. The carbon nanotube and the interface were later combined into one effective fiber using a finite element model. The interphase was modelled in a functionally graded m...
Citation Formats
S. Özerinç, M. KAŞ, A. Motallebzadeh, S. Nesli, O. Duygulu, and O. YILMAZ, “Micromechanical Characterization of Additively Manufactured Ti-6Al-4V Parts Produced by Electron Beam Melting,” JOM, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/91634.