Microstructure and metastable phase formation in a rapidly solidified Ni–Si eutectic alloy using a melt-spinning technique

2004 ◽  
Vol 381 (1-2) ◽  
pp. 72-76 ◽  
Author(s):  
A.T. Dutra ◽  
S. Milenkovic ◽  
C.S. Kiminami ◽  
A.M. Santino ◽  
M.C. Gonçalves ◽  
...  
Keyword(s):  
Phase Formation ◽  
Eutectic Alloy ◽  
Melt Spinning ◽  
Metastable Phase ◽  
Metastable Phase Formation ◽  
Rapidly Solidified ◽  
Melt Spinning Technique

Metastable Phase Formation in Rapidly Solidified ZrO2-Al2O3 Powders

2003 ◽  
Vol 437-438 ◽  
pp. 407-410 ◽  
Author(s):  
X. Zhou ◽  
R.K. Sadangi ◽  
Bernard H. Kear ◽  
W.R. Cannon
Keyword(s):  
Phase Formation ◽  
Metastable Phase ◽  
Metastable Phase Formation ◽  
Rapidly Solidified

Metastable phase formation in rapidly solidified Al–Mo alloys

1989 ◽  
Vol 5 (2) ◽  
pp. 123-130 ◽  
Author(s):  
E. A. Logan ◽  
J. N. Pratt ◽  
M. H. Loretto
Keyword(s):  
Phase Formation ◽  
Metastable Phase ◽  
Metastable Phase Formation ◽  
Rapidly Solidified

Rapidly Solidified Melt-spun Bi-Sn Ribbons: Surface Composition Issues

2016 ◽  
pp. 3287-3297
Author(s):  
Tarek El Ashram ◽  
Ana P. Carapeto ◽  
Ana M. Botelho do Rego
Keyword(s):  
Chemical Composition ◽  
Optical Microscopy ◽  
Melt Spinning ◽  
Surface Composition ◽  
Electrochemical Process ◽  
Melt Spun ◽  
Bismuth Alloy ◽  
The One ◽  
Rapidly Solidified ◽  
Melt Spinning Technique

Tin-bismuth alloy ribbons were produced using melt-spinning technique. The two main surfaces (in contact with the rotating wheel and exposed to the air) were characterized with Optical Microscopy and AFM, revealing that the surface exposed to the air is duller (due to a long-range heterogeneity) than the opposite surface. Also the XPS chemical composition revealed many differences between them both on the corrosion extension and on the total relative amounts of tin and bismuth. For instance, for the specific case of an alloy with a composition Bi-4 wt % Sn, the XPS atomic ratios Sn/Bi are 1.1 and 3.7 for the surface in contact with the rotating wheel and for the one exposed to air, respectively, showing, additionally, that a large segregation of tin at the surface exists (nominal ratio should be 0.073). This segregation was interpreted as the result of the electrochemical process yielding the corrosion products.

Sign in / Sign up

Export Citation Format

Share Document