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
Selective laser melting of Nano-TiN reinforced 17-4 PH stainless steel: Densification, microstructure and mechanical properties
Date
2022-03-01
Author
Ozsoy, Andac
Aydoğan Güngör, Eda
Dericioğlu, Arcan Fehmi
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
200
views
0
downloads
Cite This
In this study, TiN-reinforced 17-4 PH stainless steel was produced by selective laser melting (SLM). It was aimed to utilize nano-sized TiN particles both as inoculants to obtain an equiaxed microstructure in as-built condition and as dislocation barriers to improve mechanical properties. SLM process parameters development was conducted for TiN-reinforced 17-4 PH stainless steel powders. Consistent with the literature, it was observed that SLM processing window shifts to higher energy densities with the addition of ceramic particles. Moreover, it was found that smaller point distance values favor continuous melt tracks and thus, higher densities. TiN-reinforced composites were seen to exhibit a very fine and equiaxed microstructure, effectively eliminating directional solidification and consequent anisotropy. Both strength and ductility in as-built condition increased significantly for the TiN-reinforced composites. Strength further increased after heat treatment with a compromise in ductility due to excessive hardening from both TiN particles and Cu-rich precipitates. Yet, TiN incorporation was found promising for high-temperature applications in the future, where standard 17-4 PH stainless steel fails due to precipitate coarsening.
Subject Keywords
Additive manufacturing
,
Metal matrix composite
,
Laser powder bed fusion
,
Stainless steel
,
Dispersion strengthening
,
Microstructure
,
METAL-MATRIX NANOCOMPOSITES
,
BEHAVIOR
,
STRENGTH
URI
https://hdl.handle.net/11511/96469
Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
DOI
https://doi.org/10.1016/j.msea.2021.142574
Collections
Department of Metallurgical and Materials Engineering, Article
Suggestions
OpenMETU
Core
High Temperature Mechanical Properties of Ceramic Dispersoid Reinforced 17-4 PH Stainless Steel Produced by Selective Laser Melting
Özsoy, Andaç; Dericioğlu, Arcan Fehmi; Aydoğan Güngör, Eda; Department of Metallurgical and Materials Engineering (2021-9-08)
Selective Laser Melting (SLM) is a metal additive manufacturing process used to produce complex-shaped parts by the fusion of metal powders by a laser heat source. SLM processing of metals offers various advantages such as freedom of design, part consolidation, fast prototyping, weight reduction etc. Stainless steels have been one of the first choices to be implemented in SLM processing. Among these, 17-4 PH stainless steel holds a sweet spot with its corrosion resistance, weldability and high strength at e...
Optimisation of micro-arc oxidation electrolyte for fabrication of antibacterial coating on titanium
Aydogan, Dilek Teker; Muhaffel, Faiz; Kilic, Meryem Menekse; Acar, Ozge Karabiyik; Cempura, Grzegorz; Baydoğan, Murat; Gül-karagüler, Nevin; Kose, Gamze Torun; Czyrska-Filemonowicz, Aleksandra; Çimenoğlu, Hüseyin (2018-01-01)
This study has been carried out to optimise the silver (Ag) content of the coating synthesised on commercially pure titanium (Cp-Ti, Grade 4) for biomedical applications by micro-arc oxidation (MAO) process. The MAO process has been conducted in electrolytes containing silver acetate (AgC2H3O2) at different concentrations between 0 and 0.002 mol L-1. When compared to the base electrolyte, coatings synthesised in >= 0.001 mol L-1 AgC2H3O2 added electrolytes exhibited an antibacterial efficiency of 99.8% agai...
Microtensile Bond Strength of Self-Adhesive Resin-Based Dental Cement to Bleached Enamel
Tamam, Evsen; Keskin, Selda; Ucatasli, Mine Betuel (Informa UK Limited, 2010-01-01)
This study investigated the effectiveness of bleaching agents on the micro tensile bond strength (mu TBS) of self-adhesive luting cement and enamel. A total of 126 samples were prepared from the labial surfaces of permanent human maxillary central incisors and assigned into three groups with 42 samples each as: control, enamel bleached with 10% hydrogen peroxide (HP), and enamel bleached with 10% carbamide peroxide (CP). Rely X Unicem (R) (3 M, ESPE) was used as self-adhesive resin cement. The total testing...
Synthesis and characterization of aluminum alloy 7075 reinforced with silicon carbide particulates
Kalkanlı, Ali (2008-01-01)
In this study 7075 matrix alloy is chosen and SiC particles having average particle size of 29 mu m was incorporated into the alloy at the liquid state before vertical pressure casting. Four different additions of SiCp were made and the weight fractions used are 10%, 15%, 20% and 30%. Composites were processed by vertical pressure/squeeze casting machine developed at Middle East Technical University (METU) under 80 MPa pressure. The mold is specially designed to produce specimens for tensile and three point...
Effects of SiC particulates on the fatigue behaviour of an Al-alloy matrix composite
Kaynak, Cevdet (2006-01-01)
In this study, the fatigue behaviour of aluminium matrix-silicon carbide (SiC) particulate reinforced composite specimens was investigated in comparison to the matrix aluminium alloy containing 12 wt% Si. Three different weight percentages of SiC particulates: 5, 10, and 15 in the size range of 40-60 gm were injected into the melt. Mg was also added to improve the wettability of Al-alloy matrix over SiC particulates resulting in better interfacial bonding. Test specimens were machined from squeeze casting b...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Ozsoy, E. Aydoğan Güngör, and A. F. Dericioğlu, “Selective laser melting of Nano-TiN reinforced 17-4 PH stainless steel: Densification, microstructure and mechanical properties,”
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
, vol. 836, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/96469.