Metal Alloy Compositions And Process Background Of The Invention
Abstract
A skinless metal alloy composition free of entrapped gas and comprising primary solid discrete degenerate dendrites homogeneously dispersed within a secondary phase is formed by a process wherein the metal alloy is heated in a vessel to render it a liquid. The liquid is then rapidly cooled while vigorously agitating it under conditions to avoid entrapment of gas while forming solid nuclei homogeneously distributed in the liquid. Agitation then is ceased when the liquid contains a small fraction solid or the liquid-solid alloy is removed from the source of agitation while cooling is continued to form the primary solid discrete degenerate dendrites in liquid secondary phase. The solid-liquid mixture then can be formed such as by casting.
- Inventors:
-
- Cambridge, MA
- Somerville, MA
- Newton, MA
- Boston, MA
- Issue Date:
- Research Org.:
- WORCESTER POLYTECHNIC INST
- OSTI Identifier:
- 879759
- Patent Number(s):
- 6645323
- Application Number:
- 10/104536
- Assignee:
- Massachusetts Institute of Technology (Cambridge, MA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
- DOE Contract Number:
- FC07-98ID13618
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Flemings, Merton C, Martinez-Ayers, Raul A, de Figueredo, Anacleto M, and Yurko, James A. Metal Alloy Compositions And Process Background Of The Invention. United States: N. p., 2003.
Web.
Flemings, Merton C, Martinez-Ayers, Raul A, de Figueredo, Anacleto M, & Yurko, James A. Metal Alloy Compositions And Process Background Of The Invention. United States.
Flemings, Merton C, Martinez-Ayers, Raul A, de Figueredo, Anacleto M, and Yurko, James A. Tue .
"Metal Alloy Compositions And Process Background Of The Invention". United States. https://www.osti.gov/servlets/purl/879759.
@article{osti_879759,
title = {Metal Alloy Compositions And Process Background Of The Invention},
author = {Flemings, Merton C and Martinez-Ayers, Raul A and de Figueredo, Anacleto M and Yurko, James A},
abstractNote = {A skinless metal alloy composition free of entrapped gas and comprising primary solid discrete degenerate dendrites homogeneously dispersed within a secondary phase is formed by a process wherein the metal alloy is heated in a vessel to render it a liquid. The liquid is then rapidly cooled while vigorously agitating it under conditions to avoid entrapment of gas while forming solid nuclei homogeneously distributed in the liquid. Agitation then is ceased when the liquid contains a small fraction solid or the liquid-solid alloy is removed from the source of agitation while cooling is continued to form the primary solid discrete degenerate dendrites in liquid secondary phase. The solid-liquid mixture then can be formed such as by casting.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 11 00:00:00 EST 2003},
month = {Tue Nov 11 00:00:00 EST 2003}
}