Florida State University Research Foundation, Inc.

Ke Han

Yan Xin

Pingli Mao

William D Markiewicz

Qijie Zhai

Huigai Li

Jingping Chen

Peter N Kalu

Liuxing Wang

Baozhi Cui

Shaobo Zheng

Provided herein are techniques for making low-carbon steels with high surface hardness. A technique includes heating a low-carbon steel precursor material in a furnace to form molten steel material, increasing the free oxygen content of the molten steel material to a predetermined level, and then solidifying the molten steel material having the predetermined oxygen level to produce a steel structure by cooling the molten steel material at a predetermined cooling rate. The predetermined oxygen level and the predetermined cooling rate are effective to produce the low-carbon steel with a high surface hardness. The low-carbon steel may have inclusions smaller than about 1 &#x3bc;m.

Low carbon steel having improved hardness and methods of making the same

This document describes a process/strategy for age hardening nickel based alloys to create desirable properties with reduced energy expenditure. The inventive process introduces isolated atom nucleation sites to accelerate the nucleation rate by approximately 36 times, thereby permitting age hardening to occur in significantly less time and with significantly less energy expenditure.

Age-hardening process featuring anomalous aging time

A composite superconducting wire and a method of manufacturing the wire is disclosed. Nano-particle dispersion strengthened copper is co-drawn with Niobium rod to produce DSC-1Nb wire. n numbers of DSC-1Nb wires are then stacked in a hollow DSC tube and drawn to form a DSC-n.Nb hexagonal wire. In a separate preliminary process, Tin rod is co-deformed with Copper tube to form a Cu-1Sn wire. m DSC-n Nb wires and 1 Cu-1Sn wires are then wrapped by Niobium foil and placed into a Copper tube. This entire assembly is then drawn to a finished size. The drawn composite is then subjected to heat treatment with a final stage at 650-700&#xb0; C. for about 100 hours or longer. The new wire has higher electric critical current and higher mechanical strength than the controlled conventional ones.

Aluminum oxide particle strengthened niobium-tin superconducting composite wire

A method for processing CoPt alloys with improved magnetic properties. The method includes sealing a sample of a CoPt alloy in an evacuated quartz tube, and heating the alloy to a temperature of approximately 1000 degrees C. to homogenize the alloy for approximately 3 hours. The sample is then cooled at a controlled cooling rate of 120-150 degrees C. per minute to 600 degrees C. The sample is then held at 600 degrees C. for 10 hours to promote isothermal ordering. Finally, the sample is quenched in mineral oil.

Method of producing cobalt-platinum magnetic alloys with improved magnetic properties

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Tallahassee, FL, United States of America

Ke Han