Structure and properties of a rapidly solidified Al-Li-Mn-Zr Alloy for high-temperature applications: Part I. inert gas atomization processing

1991 ◽  
Vol 22 (10) ◽  
pp. 2503-2514 ◽  
Author(s):  
Michael Ruhr ◽  
Joseph Baram
Keyword(s):  
High Temperature ◽  
Inert Gas ◽  
Gas Atomization ◽  
Structure And Properties ◽  
Rapidly Solidified ◽  
Zr Alloy ◽  
Temperature Applications

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.

scholarly journals Laser Additive Manufacturing of Intermetallic Alloys for High-Temperature Applications

2021 ◽  
Author(s):  
Silja-Katharina Rittinghaus ◽  
Janett Schmelzer ◽  
Markus B. Wilms ◽  
Manija Kruger
Keyword(s):  
High Temperature ◽  
Additive Manufacturing ◽  
Titanium Aluminides ◽  
Intermetallic Alloys ◽  
Laser Additive Manufacturing ◽  
Direct Energy Deposition ◽  
Direct Energy ◽  
Rapidly Solidified ◽  
Process Composition ◽  
Temperature Applications

Intermetallic alloys like e.g. Iron-Aluminides, Titanium-Aluminides or Molybdenum- Silizides are prospective materials for high-temperature applications. For additive manufacturing (AM) intermetallic structural materials are particularly challenging due to their high melting points, oxygen susceptibility and low temperature brittleness. The feasibility of manufacturing intermetallic Mo-Si-B alloys with the laser additive manufacturing process of direct energy deposition (DED) is demonstrated and recent results in characterizing rapidly solidified material with respect to correlations between process, composition and microstructures are presented. The possibility to dope the material with Yttrium oxide (Y2O3) for dispersion is successfully demonstrated. Current challenges, e.g. homogenous distribution of alloying elements and applicability are addressed.

Structure and Properties Studies of Rapidly Solidified Al-Mn Alloys

2016 ◽  
Vol 682 ◽  
pp. 199-204 ◽  
Author(s):  
Anna Kula ◽  
Ludwik Blaz ◽  
Patrycja Lobry
Keyword(s):  
Mechanical Properties ◽  
Rapid Solidification ◽  
Spray Deposition ◽  
Hot Extrusion ◽  
Al Alloys ◽  
Inert Gas ◽  
Structure And Properties ◽  
Vacuum Degassing ◽  
Rapidly Solidified ◽  
Varied Concentration

Rapid solidification (RS) combined with plastic consolidation by hot extrusion was used to produce Al alloys with additions of varied concentration of Mn. RS flakes were manufactured using an inert gas atomizing of the molten alloy and the spray deposition on the water-cooled cooper roll. Rods of 7mm in diameter were received using cold pressing of RS-flakes, vacuum degassing and hot extrusion procedures. Mechanical properties of as extruded materials were tested in hot compression at temperature range 293K - 773K. It was found that the flow stress was reduced monotonically with deformation temperature for all tested materials. RS alloys exhibit higher mechanical properties than those produced by conventional metallurgy methods. Higher mechanical properties of RS materials are ascribed to beneficial particles morphology obtained due to the rapid solidification. Development of fine Al6Mn particles was observed in all tested RS-materials.

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