Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
EFFECT OF BUILD DIRECTION ON CRACK GROWTH BEHAVIOR OF Ti6Al4V ALLOY MANUFACTURED BY ELECTRON BEAM MELTING
Download
index.pdf
Date
2022-12-01
Author
Çalık, Feyziye
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
242
views
125
downloads
Cite This
The effects of build orientation on the crack propagation behavior of Ti6Al4V fabricated by elecron beam melting which is one of metal additive manufacturing methods were examined in this study. Firstly, Ti6Al4V blocks were manufactured at different building angles (00,300,450and 900) regarding as base plane using EBM. Subsequently, test specimens were machined from these blocks in compliance with ASTM E8, ASTM E399 and ASTM E647 standards for tensile, fracture toughness and crack growth rate specimens, respectively. Computed tomography was used to determine the amount of defects prior to fatigue crack growth test. dadN vs. ΔK graphs of these specimens constructed at four different angles were investigated. Scanning electron microscope was used to analyse fracture surfaces. It was noted that parts produced at 00 angle have higher tensile mechanical properties. On the other hand, parts EBM processed with 300 have less elongated structure due to the unmelted regions. Regarding as crack propagation, part EBM processed with 300 has the lowest resistance to fatigue crack propagation.
Subject Keywords
electron beam
,
crack growth rate
,
additive manufacturing
URI
https://hdl.handle.net/11511/101868
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Effect of post-processing heat treatment on the mechanical properties of inconel 718 fabricated by selective laser melting
Özer, Seren; Dericioğlu, Arcan Fehmi; Department of Metallurgical and Materials Engineering (2020)
In this study, effect of the building direction and post-processing heat treatments on the microstructure and high temperature mechanical properties of as-fabricatedInconel 718 alloys have been investigated. Inconel 718 samples were fabricated in two different building directions such that their longitudinalaxes wereeither parallel (horizontally built) or perpendicular (vertically built) to the building plate. During the selective laser melting (SLM)process, some undesired features can...
Effects of chromic acid anodizing on fatigue behavior of 7050 T7451 aluminum alloy
Ilhan, Cagri; Gürbüz, Rıza (2021-09-01)
The effect of chromic acid anodizing (CAA) surface treatment on 7050 T7451 aluminum alloy was presented in this study in terms of fatigue behavior. CAA is a treatment against corrosion by producing aluminum oxide layer (Al2O3) at the surface. However, fatigue performance of 7050 T7451 is affected by the coating. In this study, eight different CAA processes were examined with regard to etching stage of pre-treatments by using an alkaline etchant and/or acid etchants with various immersion times. Optical micr...
Effect of Cu addition on the microstructural constituents and mechanical properties of twin roll cast AlFeMnSi alloys
Meydanoglu, Onur; Birbaşar, Onur; Ulus, Ali; Beyhan, Bariş; Kalay, Yunus Eren (2015-01-01)
In this study, the effect of copper addition on microstructural evolution, mechanical and corrosion properties of twin roll cast (TRC) AlFeMnSi alloy system mainly used in container foil applications was investigated. Microstructural characterization studies were conducted on as-cast, homogenization annealed and final products by employing optical and scanning electron microscopes. The mechanical properties of the samples obtained from compositional were determined at the thickness of final product by tensi...
Effect of (Mo, W) substitution for Nb on glass forming ability and magnetic properties of Fe-Co-based bulk amorphous alloys fabricated by centrifugal casting
Kucuk, Ilker; Aykol, Muratahan; Uzun, Orhan; Yıldırım, Mehmet; Kabaer, Mehmet; Duman, Nagehan; Yilmaz, Fikret; Erturk, Kadir; Akdeniz, Mahmut Vedat; Mehrabov, Amdulla (Elsevier BV, 2011-02-03)
In this study, effects of simultaneous Mo and W substitution for Nb additions on the stability and magnetic properties of Fe-Co-based bulk metallic glass (BMG) alloys fabricated by centrifugal casting are investigated. The saturation magnetization (J(s)) and coercivity (H(c)) for the as-cast Fe(36)CO(36)B(19.2)Si(4.8)X(4) (X = Nb or Mo(0.5)W(0.5)) BMG alloys and melt-spun Fe(36)Co(36)B(19.2)Si(4.8)Mo(2)W(2) were in the range of 1.02-1.57T and 11.13-1685 A/m, respectively. The Fe(36)Co(36)B(19.2)Si(4.8)X(4) ...
Effect of irradiation damage on the shear strength of Cu-Nb interfaces
MAO, Shimin; Özerinç, Sezer; King, William P.; Averback, Robert S.; Dillon, Shen J. (2014-11-01)
The influence of irradiation-induced damage on the interfacial shear strength of Cu-Nb interfaces was characterized via compression of nanolaminate pillars performed in situ in a transmission electron microscope. Chemical mixing and interfacial roughening during MeV Kr ion irradiation leads to increased interfacial shear strength by as much as 60%, from 0.6 GPa for the as-deposited material to 0.95 GPa for samples irradiated at liquid nitrogen temperature. The increase in interfacial shear strength was most...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
F. Çalık, “EFFECT OF BUILD DIRECTION ON CRACK GROWTH BEHAVIOR OF Ti6Al4V ALLOY MANUFACTURED BY ELECTRON BEAM MELTING,” M.S. - Master of Science, Middle East Technical University, 2022.
