Rapid solidification mechanism of Ag60Sb34Cu6 ternary alloy in drop tube

2004 ◽  
Vol 49 (17) ◽  
pp. 1801-1805 ◽  
Author(s):  
Ying Ruan ◽  
Nan Wang ◽  
Chongde Cao ◽  
Bingbo Wei
Keyword(s):  
Rapid Solidification ◽  
Ternary Alloy ◽  
Drop Tube ◽  
Solidification Mechanism

Rapid solidification mechanism of Ag60Sb34Cu6 ternary alloy in drop tube

2004 ◽  
Vol 49 (17) ◽  
pp. 1801 ◽  
Author(s):  
Ying RUAN
Keyword(s):  
Rapid Solidification ◽  
Ternary Alloy ◽  
Drop Tube ◽  
Solidification Mechanism

scholarly journals Rapid solidification mechanism and magnetic properties of Ni-Fe-Ti alloy prepared in drop tube

2017 ◽  
Vol 66 (13) ◽  
pp. 138101
Author(s):  
Zhu Hai-Zhe ◽  
Ruan Ying ◽  
Gu Qian-Qian ◽  
Yan Na ◽  
Dai Fu-Ping
Keyword(s):  
Magnetic Properties ◽  
Rapid Solidification ◽  
Drop Tube ◽  
Ti Alloy ◽  
Solidification Mechanism

Rapid solidification of Al-Cu-Ag ternary alloy under the free fall condition

2009 ◽  
Vol 52 (6) ◽  
pp. 848-855
Author(s):  
FuPing Dai ◽  
BingBo Wei
Keyword(s):  
Rapid Solidification ◽  
Ternary Alloy ◽  
Free Fall

Microstructural Characterization of Fe-Mn-C Ternary Alloy under Near-Rapid Solidification

2012 ◽  
pp. 35-41 ◽  
Author(s):  
Wenbin Xia ◽  
Rong Yang ◽  
Changjiang Song ◽  
Qijie Zhai
Keyword(s):  
Rapid Solidification ◽  
Ternary Alloy ◽  
Microstructural Characterization

Containerless rapid solidification of Ag28.1Cu41.4Ge30.5 ternary alloy

2000 ◽  
Vol 302 (1-2) ◽  
pp. 274-280 ◽  
Author(s):  
N Wang ◽  
B Wei
Keyword(s):  
Rapid Solidification ◽  
Ternary Alloy

Containerless Rapid Solidification of Liquid Ti-Al-V Alloys Inside Drop Tube

2016 ◽  
pp. 397-404
Author(s):  
S.L. Wei ◽  
L.J. Huang ◽  
J. Chang ◽  
S.J. Yang ◽  
Y.T. Ma ◽  
...  
Keyword(s):  
Rapid Solidification ◽  
Drop Tube

Transitory Metastable Phases in Refractory Metals-Based Systems Solidified by Drop-Tube Processing: A First-Principles Approach

1997 ◽  
Vol 481 ◽  
Author(s):  
A. Pasturel ◽  
B. Vinet
Keyword(s):  
Phase Transformations ◽  
Rapid Solidification ◽  
Structural Stability ◽  
First Principles ◽  
Ultrahigh Vacuum ◽  
Refractory Metals ◽  
Metastable Phases ◽  
Drop Tube ◽  
First Principles Calculations ◽  
Successive Phase

ABSTRACTRefractory metals and alloys are deeply undercooled in an ultrahigh vacuum drop-tube facility. During rapid solidification, some brightness traces give evidences of two successive phase transformations. First-principles calculations of the structural stability in these systems are developed to appreciate the possibilities of obtaining metastable phases.

Metastable phases formed in rapidly solidified Nb-Ge alloys

1986 ◽  
Vol 44 ◽  
pp. 554-555
Author(s):  
N. D. Evans ◽  
R. J. Bayuzick ◽  
E. A. Kenik
Keyword(s):  
Data Acquisition ◽  
Rapid Solidification ◽  
Space Flight ◽  
Electromagnetic Levitation ◽  
Data Acquisition System ◽  
Cooling Curve ◽  
Drop Tube ◽  
Thermophysical Parameters ◽  
Rapidly Solidified

The 100 meter Long Drop Tube, located within the Marshall Space Flight Center in Huntsville, AL, provides a unique opportunity for the study of rapid solidification of bulk processed materials. Here, Nb-Ge alloys have been melted into large drops in an electromagnetic levitation furnace, and then released to fall down the tube. Drops were approximately 300 mg in mass and 2-3 mm in diameter. A data acquisition system recorded the release temperature, and the resulting cooling curve from each specimen which may have included recalescence events. Knowledge of thermophysical parameters then allowed the determination of the undercooling. More extensive discussions of the drop tube are elsewhere. Undercoolings of 350 K (0.15 Tm) have been achieved.

Observation of cerium-oxides in rapidly solidified Ti-4wt% Ce

1989 ◽  
Vol 47 ◽  
pp. 506-507
Author(s):  
J.E. Wittig ◽  
D.R. Kegley ◽  
W.H. Hofmeister ◽  
R.J. Bayuzick
Keyword(s):  
Rare Earth ◽  
Rapid Solidification ◽  
Stable Distribution ◽  
Elevated Temperatures ◽  
Free Fall ◽  
Rare Earth Oxide ◽  
Drop Tube ◽  
Thin Foils ◽  
Precipitation Phenomena ◽  
Rapidly Solidified

Rapid solidification of Ti rare earth alloys can produce a fine rare earth oxide dispersion. A stable distribution of rare earth oxides in a hexagonal Ti matrix has been shown to increase the flow stress at both room and elevated temperatures. Previous studies have investigated the precipitation phenomena in Ti-erbium Ti-Ianthanum, and Ti-Al-gadolinium alloys. The present research addresses oxide precipitation in a Ti-cerium alloy as a result of rapid solidification processing.Samples of Ti-4 wt% Ce were rapidly solidified by splat quenching 300 mg droplets, after free fall in a 100 m drop tube, onto a copper block. Pyrometer measurements and heat flow calculations estimate that the liquid drop was undercooled approximately 200 K below its equilibrium melting temperature (Tm=1920 K) at impact. Thin foils from the splats were prepared by punching 3 mm diameter discs and twin-jet electropolishing in a solution of 3% perchloric acid, 37% n-butylalcohol, and 60% methanol at 240 K and 34 V. The TEM investigations used a Philips CM12, a CM30, and an EM420T.

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