scholarly journals Receiving finely divided metal powder by inert gas atomization

2018 ◽  
Vol 347 ◽  
pp. 012033 ◽  
Author(s):  
M A Smirnov ◽  
M A Kaplan ◽  
M A Sevostyanov
Keyword(s):  
Metal Powder ◽  
Inert Gas ◽  
Gas Atomization

scholarly journals Modification of Liquid Steel Viscosity and Surface Tension for Inert Gas Atomization of Metal Powder

Metals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 521
Author(s):  
Iurii Korobeinikov ◽  
Anton Perminov ◽  
Tobias Dubberstein ◽  
Olena Volkova
Keyword(s):  
Surface Tension ◽  
Liquid Metal ◽  
Metal Powder ◽  
Flow Rate ◽  
Gas Flow ◽  
Metal Flow ◽  
Inert Gas ◽  
Powder Size ◽  
Gas Atomization ◽  
Technological Parameters

Inert gas atomization is one of the main sources for production of metal powder for powder metallurgy and additive manufacturing. The obtained final powder size distribution is controlled by various technological parameters: gas flow rate and pressure, liquid metal flow rate, gas type, temperature of spraying, configuration of nozzles, etc. This work explores another dimension of the atomization process control: modifications of the liquid metal properties and their effect on the obtained powder size. Series of double-alloyed Cr-Mn-Ni steels with sulfur and phosphorus were atomized with argon at 1600 °C. The results indicate that surface tension and viscosity modifications lead to yielding finer powder fractions. The obtained correlation is compared with the individual modification of surface tension with S and Se and modification of viscosity with phosphorus. Discrepancy of the results is discussed. Additives of surfactants and viscosity modifiers can be a useful measure for powder fractions control.

scholarly journals Manufacturing Fe–TiC Composite Powder via Inert Gas Atomization by Forming Reinforcement Phase In Situ

2020 ◽  
pp. 2000717
Author(s):  
Anton Perminov ◽  
Gert Bartzsch ◽  
Armin Franke ◽  
Horst Biermann ◽  
Olena Volkova
Keyword(s):  
Composite Powder ◽  
Inert Gas ◽  
Gas Atomization

scholarly journals Annealing-induced property improvements in 2-14-1 powders produced by inert gas atomization

1996 ◽  
Author(s):  
L.H. Lewis ◽  
C.H. Sellers ◽  
V. Panchanathan
Keyword(s):  
Inert Gas ◽  
Gas Atomization

scholarly journals Production of Fe-Si-Al-Ni-Ti soft magnetic alloy powder by inert-gas atomization

2012 ◽  
Vol 27 ◽  
pp. 1426-1433
Author(s):  
Xin Liu ◽  
Huanwen Xie ◽  
Lei Wang ◽  
Jiewen Luo ◽  
Yixiang Cai
Keyword(s):  
Alloy Powder ◽  
Inert Gas ◽  
Magnetic Alloy ◽  
Gas Atomization ◽  
Soft Magnetic ◽  
Soft Magnetic Alloy

Design of a Nozzle for the Production of Metal Powder via Gas Atomization

2013 ◽  
Author(s):  
Mehmet Alper Sofuoglu ◽  
Murat Erbas ◽  
Ibrahim Uslan ◽  
Atilla Biyikoglu
Keyword(s):  
Numerical Model ◽  
Flow Velocity ◽  
Metal Powder ◽  
Nozzle Exit ◽  
Maximum Pressure ◽  
Gas Atomization ◽  
Exit Angle ◽  
Second Stage ◽  
Empirical Relations ◽  
Two Stages

In this study, a nozzle has been designed in order to produce metal powder via the method of gas atomization. The design has been performed in two stages. At the first stage of design, the size and geometry of the nozzle have been determined using empirical relations as a pre-design. At the second stage, a parametrical analysis has been done using a CFD code. As a parametrical study, the effects of nozzle exit angle, throat distance and protrusion length on pressure and flow velocity at the nozzle exit are investigated with the numerical model. Appropriate values for the investigated parameters have been determined to get maximum pressure in vacuum condition at the tip of the melt. The nozzle has been designed based on the determined parameters.

Tensile Properties of Large Extrusion and Forgings of RS P/M Al-9Fe-1.9Mo-1.7Si Aluminum Alloy

2007 ◽  
Vol 546-549 ◽  
pp. 1077-1080
Author(s):  
P.Y. Li ◽  
W. Li ◽  
X.L. He ◽  
Sheng Long Dai ◽  
S.Y. Wang ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Elevated Temperature ◽  
Powder Metallurgy ◽  
Inert Gas ◽  
Gas Atomization ◽  
Short Transverse ◽  
Powder Metallurgy Process ◽  
Longitudinal Orientation ◽  
Rapidly Solidified ◽  
Metallurgy Process

Large extrusion and forgings of Al-9Fe-1.9Mo-1.7Si (wt.%, FMS0918) aluminum alloy for elevated temperature applications were produced by rapidly solidified powder metallurgy process. Powders of FMS0918 alloy were produced by inert gas atomization, and then screened, canned, degassed, extruded and forged. The extrusion exhibited good strengths and elongation in longitudinal orientation, but low elongation in long- and short-transverse orientations. After forged, the tensile strengths of the forgings showed little change, but the long- and short-transverse elongation was improved.

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