Rapid Solidification of an Aluminum-Neodymium Alloy

MRS Proceedings ◽

10.1557/proc-28-329 ◽

1983 ◽

Vol 28 ◽

Author(s):

S. J. Savage ◽

F. H. Froes

Keyword(s):

Heat Treatment ◽

Rapid Solidification ◽

Heat Treatments ◽

Rapid Solidification Processing ◽

Solidification Processing ◽

Preliminary Results ◽

Different Response ◽

Rapidly Solidified ◽

Microstructural Studies

ABSTRACTA rationale for rapid solidification processing of aluminum-lanthanide alloys is given, and preliminary results of microstructural studies on an aluminum-neodymium alloy are presented. Three distinct types of microstructure are seen in the as-cast rapidly solidified material, which are still evident after heat treatment at 350°C for 1 hour. Microhardness measurements indicate each microstructure has a different response to isochronal heat treatments.

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Oxide Dispersions in Rapidly Solidified Ti Alloys

MRS Proceedings ◽

10.1557/proc-28-381 ◽

1983 ◽

Vol 28 ◽

Author(s):

D.G. Konitzer ◽

R. Kirchheim ◽

H.L. Fraser

Keyword(s):

Heat Treatment ◽

Rare Earth ◽

Rare Earth Oxide ◽

Rapid Solidification Processing ◽

Laser Surface ◽

Second Phase ◽

Solidification Processing ◽

Ti Alloys ◽

The Stability ◽

Rapidly Solidified

ABSTRACTTechniques of rapid solidification processing were used to refine a dispersion of rare earth oxides in Ti. The dispersion was produced by laser surface melting and subsequent heat treatment of a Ti-Er alloy. The second phase was identified as the rare earth oxide. The stability of the dispersion was investigated analytically and experimentally and the correlation between the analysis and experiments was shown to be very good.

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Effect of Rapid Solidification Processing on Hydrogen Behaviour in Aluminium

Materials Science Forum ◽

10.4028/www.scientific.net/msf.654-656.998 ◽

2010 ◽

Vol 654-656 ◽

pp. 998-1001 ◽

Cited By ~ 7

Author(s):

Iya I. Tashlykova-Bushkevich ◽

Takahiro Shikagawa ◽

Vasiliy G. Shepelevich ◽

Goroh Itoh

Keyword(s):

Atomic Force Microscopy ◽

Rapid Solidification ◽

Thermal Desorption Spectroscopy ◽

Rapid Solidification Processing ◽

Alloying Element ◽

Solidification Processing ◽

Force Microscopy ◽

Atomic Force ◽

Afm Analysis ◽

Rapidly Solidified

Thermal desorption spectroscopy (TDS) technique has been used to study hydrogen behaviour in rapidly solidified (RS) aluminium (Al) both as-cast and exposed to humid air (HA). The surface morphology of the foils was studied through atomic force microscopy (AFM). Analysis was made of the effect of rapid solidification processing (RSP) on H/microstructure interactions, including investigation of alloying element (0.05 at % Ti) influence on H trapping in Al.

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Effect of Rapid Solidification on Microstructural Features of Al-Cr Alloys

Materials Science Forum ◽

10.4028/www.scientific.net/msf.706-709.301 ◽

2012 ◽

Vol 706-709 ◽

pp. 301-304 ◽

Cited By ~ 5

Author(s):

Iya I. Tashlykova-Bushkevich ◽

Goroh Itoh

Keyword(s):

Surface Topography ◽

Rapid Solidification ◽

Surface Composition ◽

Hydrogen Desorption ◽

Rapid Solidification Processing ◽

Hydrogen Trapping ◽

Alloying Element ◽

Solidification Processing ◽

Near Surface ◽

Rapidly Solidified

Microstructure of rapidly solidified (RS) pure Al and Al-0.8; 1.0 Cr alloys (at %) foils was examined with reference to near surface composition, solute/microstructure interactions, and surface topography. The hydrogen desorption from Al-Cr alloys was investigated in order to clarify effect of rapid solidification processing (RSP) on hydrogen trapping in specimens. It is suggested that hydrogen occupancy for vacancy traps in the alloys is decreased in contrast to that reported for pure Al foils and is related to the formation of vacancy-alloying element atom complexes.

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The Production and Thermal Stability of a Refined Dispersion of Er2O3 in Ti3Al using Rapid Solidification Processing

MRS Proceedings ◽

10.1557/proc-39-437 ◽

1984 ◽

Vol 39 ◽

Cited By ~ 2

Author(s):

D. G. Konitzer ◽

H. L. Fraser

Keyword(s):

Heat Treatment ◽

Thermal Stability ◽

Solid Solution ◽

Rapid Solidification ◽

Elevated Temperatures ◽

Rapid Solidification Processing ◽

Laser Surface ◽

Second Phase ◽

Solidification Processing ◽

Thermal Stability Of

ABSTRACTThe use of rapid solidification processing to produce a refined dispersion of second phase in Ti3Al is demonstrated. Laser surface melting produces a disordered solid solution of Ti and Al with a supersaturation of Er and 0. A refined dispersion of Er2O3 is formed on heat treatment at 973 K. This oxide is found to be stable at elevated temperatures up to 1173 K.

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