Method and apparatus for semi-solid material processing
Abstract
A method of forming a material includes the steps of: vibrating a molten material at an ultrasonic frequency while cooling the material to a semi-solid state to form non-dendritic grains therein; forming the semi-solid material into a desired shape; and cooling the material to a solid state. The method makes semi-solid castings directly from molten materials (usually a metal), produces grain size usually in the range of smaller than 50 .mu.m, and can be easily retrofitted into existing conventional forming maching.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1003018
- Patent Number(s):
- 7621315
- Application Number:
- 12/357,857
- Assignee:
- UT-Battelle, LLC (Oak Ridged, TN); University of Tennessee Research Foundation (Knoxville, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Han, Qingyou, Jian, Xiaogang, Xu, Hanbing, and Meek, Thomas T. Method and apparatus for semi-solid material processing. United States: N. p., 2009.
Web.
Han, Qingyou, Jian, Xiaogang, Xu, Hanbing, & Meek, Thomas T. Method and apparatus for semi-solid material processing. United States.
Han, Qingyou, Jian, Xiaogang, Xu, Hanbing, and Meek, Thomas T. Tue .
"Method and apparatus for semi-solid material processing". United States. https://www.osti.gov/servlets/purl/1003018.
@article{osti_1003018,
title = {Method and apparatus for semi-solid material processing},
author = {Han, Qingyou and Jian, Xiaogang and Xu, Hanbing and Meek, Thomas T},
abstractNote = {A method of forming a material includes the steps of: vibrating a molten material at an ultrasonic frequency while cooling the material to a semi-solid state to form non-dendritic grains therein; forming the semi-solid material into a desired shape; and cooling the material to a solid state. The method makes semi-solid castings directly from molten materials (usually a metal), produces grain size usually in the range of smaller than 50 .mu.m, and can be easily retrofitted into existing conventional forming maching.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {11}
}
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