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Meeting MS&T22: Materials Science & Technology
Symposium Metal Powder Synthesis and Processing
Presentation Title Synthesis and Characterization of Gas Atomized Ultra-high Strength Steel Powder Feedstock for Additive Manufacturing
Author(s) Thinh Huynh, Kevin Graydon, Brandon McWilliams, Kyu Cho, Yongho Sohn
On-Site Speaker (Planned) Thinh Huynh
Abstract Scope A novel ultra-high strength steel alloy was gas atomized to produce powder feedstock for additive manufacturing. Charge alloys were inductively melted with Argon shrouding at a superheating temperature of 1800 C, and subsequently gas atomized using Argon gas at a pressure of 2 MPa. Metal flow rate and bulk powder yield were optimized by controlling the degree of superheating, atomizing gas pressure, orifice diameter, and nozzle material type. As-atomized powders were characterized for microstructure, composition, phase constituents, particle morphology, size distribution, and flowability by using optical microscopy, electron microscopy, energy dispersive spectroscopy, X-ray diffraction, particle size analysis, and Hall flowmeter. Results are presented with due respect for phase transformations and microstructural development during rapid solidification of gas atomization.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Framework for Powder Evaluation with Reuse in Laser Powder Bed Fusion Additive Manufacturing
E-17: Powder Production of Structural or Functional Two-phase from Metal Materials with an Intermetallic Structure
Engineering Amorphous Aluminum High Entropy Powder for Producing High Strength Cold Sprayed Deposits
Large Scale Manufacture and Processing of Nano-Crystalline Metal Powders by Mechanical Alloying (MA)
Mechanical Alloying and Thermal Stability of Amorphous Co-C Alloys
Production Research of High-cut Steels by Methods of Hot Isostatic Pressing of Powder Materials
Resistance Sintering Solid-state Bonding Model
Synthesis and Characterization of Gas Atomized Ultra-high Strength Steel Powder Feedstock for Additive Manufacturing

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