Index Catalog // ScholarsArchive@OSU

LPBF and Post Processing of H13 Tool Steel

Creator:: Alabdulali, Ali
Abstract:: Laser powder bed fusion (LPBF) is an innovative method where metal powder is fused together to generate complex geometries. LPBF is used as a technology to reduce material waste, and extensive labor that are often linked to conventional subtractive manufacturing. H13 tool steel is one of the widely used materials...
Resource Type:: Masters Thesis
Date Created:: 2023-08-31
Full Text:: : ______________________________________________________ Somayeh Pasebani Laser powder bed fusion (LPBF) is an innovative method where metal

On the Role of Particle Size Distribution in Selective Laser Melting of 316L Stainless Steel

Creator:: Coe, Hannah G.
Abstract:: Selective laser melting (SLM) is an additive manufacturing (AM) process that uses a laser beam to melt metal powder as it is spread onto the build surface using a roller or scraper, followed by rapid solidification to manufacture a 3D component, one layer at a time. In SLM process, density...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Somayeh Pasebani

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

Creator:: Doyle, Ryan P.
Abstract:: High Entropy Alloys (HEA) exhibit unusual properties and are gaining interest as new materials for challenging applications in the aerospace, hypersonic and medical fields. The application of HEAs have been limited by the development of powder production at scale. A recently developed process of plasma spheroidization by 6K, inc. has...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Somayeh Pasebani High Entropy Alloys (HEA) exhibit unusual properties and are gaining

Additive Manufacturing of Austenitic Oxide Dispersion Strengthened Alloy Using Powder Feedstock Gas-atomized with Elemental Yttrium via Laser Directed Energy Deposition

Creator:: Yang, Seongun
Abstract:: This study investigates the microstructure and mechanical properties of an austenitic Oxide Dispersion Strengthened (ODS) steel produced by the Laser Directed Energy Deposition (LDED) process using powder feedstock atomized with elemental yttrium. The Microstructure of the samples was characterized by electron microscopy, and mechanical properties were measured using a tensile...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: _____________________________________________________ Somayeh Pasebani

Effect of Laser Powder Bed Fusion Parameters and Hot Isostatic Pressing on the Microstructure and Mechanical Properties of C22 Alloy

Creator:: Yan, Dongqing
Abstract:: A nickel-based Hastelloy C22 powder with a nominal composition of Ni-21.30Cr-13.36Mo-1.92Co-2.94W-3.85Fe-0.23Mn-0.3V(wt%) and particle size distribution of D₁₀=23.8±0.3 μm, D₅₀=37.5±0.2μm, and D₉₀=59.3±1.1 μm was gas atomized to be used as a feedstock in Laser Powder Bed Fusion (LPBF). In this study, laser power and scanning speed were optimized to manufacture specimens...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Somayeh Pasebani A nickel-based Hastelloy C22 powder with a nominal composition of Ni

Selective Laser Melting of Duplex Stainless Steel 2205: Microstructure, Mechanical Properties, and Corrosion Performance

Creator:: Nigon, Gregory N.
Abstract:: The aim of this work was to assess the viability of duplex stainless steel 2205 components built via selective laser melting for seawater applications. First, a comprehensive additive manufacturing assessment was done. The duplex stainless steel 2205 components were selectively laser melted from gas atomized powder (D90 <45m) using a...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Somayeh Pasebani

The Processing and Microstructures of 309L Stainless Steel Clad onto Carbon Steel with Wire-fed Directed Energy Deposition

Creator:: Bozeman, Scott C.
Abstract:: Directed energy deposition and laser cladding technologies are suitable advanced manufacturing techniques for applying corrosion-resistant claddings to large carbon steel components. In this work, we clad 309L stainless steel wire onto carbon steel substrates and examine the effects of cladding parameters (laser power and travel speed) on metallurgical bonding, composition,...
Resource Type:: Masters Thesis
Full Text:: , 2017, doi: 10.1016/j.surfcoat.2017.08.013. 5 [16] P. Murkute, S. Pasebani, and O. B. Isgor

Numerical and Analytical Modeling of Temperature Evolution in Laser Processing of Materials

Creator:: Ball, Stefan R.
Abstract:: The ultimate goal of this work is to analyze and compare two predictive models of thermal profile in laser processing of materials. An analytical method that uses closed-form equations to represent a geometric model of a laser heat source will be contrasted with a commercial computational fluid dynamics code that...
Resource Type:: Masters Thesis

Direct 3D Printing of Silicone Elastomer Soft Robots without Support

Creator:: Morrow, John F.
Abstract:: Soft robotics utilizes compliant materials (such as rubber) to make robots that are flexible and safe around humans, however these materials present many practical manufacturing challenges. Current fabrication methods use molding techniques which limits the soft robot designs which could be fabricated and impacts part consistency. This defense introduces a...
Resource Type:: Masters Thesis

Enabling design for energy efficient additive manufacturing

Creator:: Nagarajan, Hari Prashanth Narayan
Abstract:: Manufacturing exists as a stronghold for continuous growth and development of economies, a trend that is likely to continue as the demand for commodities and products grow. Manufacturing drives innovation and productivity in developed nations, as well as promoting economic stability and development in developing nations. However, manufacturing activities pose...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

LPBF and Post Processing of H13 Tool Steel

On the Role of Particle Size Distribution in Selective Laser Melting of 316L Stainless Steel

Additive Manufacturing of FeCrCoCuNi High Entropy Alloy via Laser Powder Bed Fusion and Nickel Aluminum Bronze via Laser Directed Energy Deposition

Additive Manufacturing of Austenitic Oxide Dispersion Strengthened Alloy Using Powder Feedstock Gas-atomized with Elemental Yttrium via Laser Directed Energy Deposition

Effect of Laser Powder Bed Fusion Parameters and Hot Isostatic Pressing on the Microstructure and Mechanical Properties of C22 Alloy

Selective Laser Melting of Duplex Stainless Steel 2205: Microstructure, Mechanical Properties, and Corrosion Performance

The Processing and Microstructures of 309L Stainless Steel Clad onto Carbon Steel with Wire-fed Directed Energy Deposition

Numerical and Analytical Modeling of Temperature Evolution in Laser Processing of Materials

Direct 3D Printing of Silicone Elastomer Soft Robots without Support

Enabling design for energy efficient additive manufacturing

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