FINE GRAIN AND AMORPHOUS SURFACES BY ELECTRO-SPARK ALLOYING

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: N/A
Agency Tracking Number: 5227
Amount: $40,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
21414h Ave S., Kent, WA, 98032
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
 Dr. G. Sheldon
Title: Investigator
Phone: () -
Research Institution
N/A
Abstract
THE PROPOSED STUDY WILL RESEARCH AND DEVELOP A UNIQUE TYPE OF SURFACE ALLOYING PROCESS IN WHICH THE CONTACT TIP OF A SCANNING ELECTRODE IS TRANSFERRED TO AND ALLOYED WITH AN ELECTRICALLY CONDUCTING SUBSTRATE MATERIAL BY THE PASSAGE OFREPETITIVE, HIGH CURRENT, AND SHORT DURATION ELECTRICAL PULSES. THE DEPTH OF THE TREATED SURFACE IS CONTROLLED BY THE PULSE PARAMETERS AND THE SCANNING RATE OF THE ELECTRODE,THUS THE COMPOSITION OF THE SURFACE LAYER CAN BE VARIED FROMTHAT APPROACHING THE SUBSTRATE TO THAT APPROACHING THE ELECTRODE. IN PHASE I, THE ALLOYED PHASES AND COMPOSITION AT DIFFERENT THICKNESSES ASSOCIATED WITH PULSE DURATION AND ENERGY LEVEL WILL BE DETERMINED FOR CERTAIN PURE METAL AND CARBIDE ELECTRODES APPLIED TO A TITANIUM ALLOY SURFACE. THEFORMATION OF FINE GRAINED AND POSSIBLY AMORPHOUS PHASES FORMED THROUGH THE SECTIONS WILL BE INVESTIGATED AND COMPARED TO HARDNESS AND WEAR RESISTANCE. THIS WILL ESTABLISH A BASIS FOR PHASE II WHICH WILL EXTEND THE WORK TOVERY HIGH AND VERY LOW PULSE LEVELS AND LEAD TO PROCESS OPTIMIZATION SPECIFICATIONS AND IDENTIFICATION OF COMMERCIALAPPLICATION OPPORTUNITIES OF THE ELECTRO-SPARK ALLOYING (ESA) PROCESS.

* Information listed above is at the time of submission. *

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