Title:
INFILTRATING A POWDER METAL SKELETON BY A SIMILAR ALLOY WITH DEPRESSED MELTING POINT EXPLOITING A PERSISTENT LIQUID PHASE AT EQUILIBRIUM, SUITABLE FOR FABRICATING STEEL PARTS
Document Type and Number:
WIPO Patent Application WO2005053883
Kind Code:
A3
Abstract:
A fully densified substantially homogeneous steel part is made by infiltrating a skeleton made form steel powder with an infiltrant of a similar composition. The composition of the powder and the infiltrant differ primarily only in that the infiltrant has a higher concentration of a melting point depressant agent than does the skeleton, and this higher concentration results in the infiltrant having a melting point that is significantly lower than that of the skeleton composition.
Inventors:
KERNAN BRIAN D (US)
SACHS EMANUEL M (US)
ALLEN SAMUEL M (US)
LORENZ ADAM M (US)
SACHS EMANUEL M (US)
ALLEN SAMUEL M (US)
LORENZ ADAM M (US)
Application Number:
PCT/US2004/039133
Publication Date:
August 04, 2005
Filing Date:
November 22, 2004
Export Citation:
Assignee:
MASSACHUSETTS INST TECHNOLOGY (US)
KERNAN BRIAN D (US)
SACHS EMANUEL M (US)
ALLEN SAMUEL M (US)
LORENZ ADAM M (US)
KERNAN BRIAN D (US)
SACHS EMANUEL M (US)
ALLEN SAMUEL M (US)
LORENZ ADAM M (US)
International Classes:
C22C33/02; (IPC1-7): B22F3/26
Foreign References:
| US4286987A | 1981-09-01 | |||
| US4327156A | 1982-04-27 |
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