Project Title:
Producing Foils from Direct-Cast, Titanium Alloy Strip
04.06-5444
911895
Producing Foils from Direct-Cast, Titanium Alloy Strip
Ribbon Technology Corporation
Box 30758
Gahanna
OH
43230
Thomas A.
Gaspar
614-864-5444
LaRC
NAS1-19541
049
04.06-5444
911895
Abstract:
Producing Foils from Direct-Cast, Titanium Alloy Strip
A promising new technique for direct-casting rapidly solidified titanium alloy strip
was developed by the firm with NASA support. The plasma melt overflow process combines
transferred plasma-arc, skull melting techniques, and melt overflow rapid solidification
technology to direct-cast ribbons and strip. A wide range of alloys can be cast by
the process. After casting a near-net-shape strip, there is still sufficient thickness
to break up the cast microstructure and develop the mechanical and metallurgical
properties by thermal and mechanical processing (TMP) to result in high-quality foils.
This project focuses on the development of techniques to produce TiAl and Ti3Al foils
from direct-cast strip using TMP. The techniques that will be investigated include
direct casting of strip, heat treatment, wet grinding, and pack rolling.
Applications would be in honeycomb panels, metal-matrix composites, turbine exhaust
nozzle flaps, and superalloy foils.
aluminides, titanium, foils, rapid solidification, pack rolling