Production and properties of rapidly solidified Al-4.5% Cu alloy powder by the rotating-water-atomization process

1985 ◽  
Vol 20 (6) ◽  
pp. 2148-2158 ◽  
Author(s):  
Itsuo Ohnaka ◽  
Isamu Yamauchi ◽  
Satoru Kawamoto ◽  
Tatsuichi Fukusako
Keyword(s):  
Alloy Powder ◽  
Atomization Process ◽  
Cu Alloy ◽  
Water Atomization ◽  
Rapidly Solidified

scholarly journals Production of Rapidly Solidified Fe-C-Si Alloy Powder by the Rotating-Water-Atomization Process and Its Structure

1987 ◽  
Vol 73 (9) ◽  
pp. 1138-1145 ◽  
Author(s):  
Isamu YAMAUCHI ◽  
Yasuhiko NOMURA ◽  
Itsuo OHNAKA ◽  
Yuji MATSUMOTO
Keyword(s):  
Alloy Powder ◽  
Atomization Process ◽  
Water Atomization ◽  
Rapidly Solidified

scholarly journals Hot Extrusion of Rapidly Solidified Al–Si Alloy Powder by the Rotating-Water-Atomization Process

1986 ◽  
Vol 27 (3) ◽  
pp. 195-203 ◽  
Author(s):  
Isamu Yamauchi ◽  
Itsuo Ohnaka ◽  
Satoru Kawamoto ◽  
Tatsuichi Fukusako
Keyword(s):  
Alloy Powder ◽  
Hot Extrusion ◽  
Atomization Process ◽  
Water Atomization ◽  
Rapidly Solidified

scholarly journals The Effect of Copper Content on Tensile Property of Rapidly Solidified Fe-Cu Alloy Powder Consolidated by Heavy Worm Rolling

2003 ◽  
Vol 50 (12) ◽  
pp. 1036-1040 ◽  
Author(s):  
Kazumi Minagawa ◽  
Hideki Kakisawa ◽  
Minoru Otaguchi ◽  
Yoshiaki Osawa ◽  
Susumu Takamori ◽  
...  
Keyword(s):  
Tensile Property ◽  
Alloy Powder ◽  
Copper Content ◽  
Cu Alloy ◽  
Effect Of Copper ◽  
Rapidly Solidified

On the Origin of the Microscystalline Structure in Rapidly Solidified IN-100 Powder

1977 ◽  
Vol 35 ◽  
pp. 260-261
Author(s):  
J. M. Walsh ◽  
K. P. Gumz ◽  
J. C. Whittles ◽  
B. H. Kear
Keyword(s):  
The Other ◽  
Coarse Grained ◽  
Microcrystalline Structure ◽  
Routine Examination ◽  
Atomization Process ◽  
Centrifugal Atomization ◽  
Splat Quenching ◽  
Powder Particles ◽  
Dendritic Microstructures ◽  
Rapidly Solidified

During a routine examination of the microstructure of rapidly solidified IN-100 powder, produced by a newly-developed centrifugal atomization process1, essentially two distinct types of microstructure were identified. When a high melt superheat is maintained during atomization, the powder particles are predominantly coarse-grained, equiaxed or columnar, with distinctly dendritic microstructures, Figs, la and 4a. On the other hand, when the melt superheat is reduced by increasing the heat flow to the disc of the rotary atomizer, the powder particles are predominantly microcrystalline in character, with typically one dendrite per grain, Figs, lb and 4b. In what follows, evidence is presented that strongly supports the view that the unusual microcrystalline structure has its origin in dendrite erosion occurring in a 'mushy zone' of dynamic solidification on the disc of the rotary atomizer.The critical observations were made on atomized material that had undergone 'splat-quenching' on previously solidified, chilled substrate particles.

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