Amorphous Ti-Zr; Base Metglas brazing filler metals

Journal Article · Mon Dec 31 23:00:00 EST 1990 · Scripta Metallurgica; (United States)

DOI:https://doi.org/10.1016/0956-716X(91)90200-K· OSTI ID:5345804

Rabinkin, A; Liebermann, H; Pounds, S; Taylor, T ^[1]

---

1. Allied-Signal Inc., Parsippany, NJ (US)

This paper is the first report on processing, properties and potential application of amorphous titanium/zirconium-base alloys produced in the form of a good quality continuous and ductile ribbon having up to 12.5 mm width. To date, the majority of titanium brazing is accomplished using cooper and aluminum-base brazing filler metals. The brazements produced with these filler metals have rather low ({approximately}300{degrees} C) service temperature, thus impeding progress in aircraft and other technologies and industries. The attempt to develop a generation of high temperature brazing filler metals was made in the late sixties-early seventies studies in detail were a large number of Ti-, Zr-Ti-Zr, Ti-V and Zr-V-Ti based alloys. The majority of these alloys has copper and nickel as melting temperature depressants. The presence of nickel and copper converts them into eutectic alloys having (Ti(Zr)) (Cu(Ni)), intermetallic phases as major structural constituents. This, in turn, results in high alloy brittleness and poor, if any, processability by means of conventional, i.e. melting-ingot casting-deformation technology. In spite of good wettability and high joint strength achieved in dozens of promising alloys, only Ti-15Cu-15Ni is now widely used as a brazing filler metal for high service temperature. Up until now this material could not be produced as a homogeneous foil and is instead applied as a clad strip consisting of three separate metallic layers.

• OSTI ID: 5345804
• Journal Information: Scripta Metallurgica; (United States), Journal Name: Scripta Metallurgica; (United States) Vol. 25:1; ISSN 0036-9748; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
AMORPHOUS STATE
BORON
BRAZING
COPPER ALLOYS
DEFORMATION
ELEMENTS
FABRICATION
FILLER METALS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
JOINING
MATERIALS
MELTING POINTS
NONMETALS
PHOSPHORUS
PHYSICAL PROPERTIES
PROCESSING
REFRACTORIES
SEMIMETALS
SILICON
THERMODYNAMIC PROPERTIES
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
TRANSITION TEMPERATURE
WELDING
ZIRCONIUM ALLOYS
ZIRCONIUM BASE ALLOYS