Method for determining the molten pool configuration in melting of metals

Patent · Fri Nov 23 00:00:00 EST 1990

OSTI ID:5344675

White, J C; Traut, D E

The invention provides a method of quantitatively determining the molten pool configuration in melting of metals. The method includes the steps of introducing hafnium metal seeds into a molten metal pool at intervals to form ingots, neutron activating the ingots and determining the hafnium location by radiometric means. Another object is to provide a method that yields information on the fundamental processes occurring during melting of metals, such as titanium and zirconium which has bearing on attempts to eliminate nitride inclusions, which weaken high-technology rotating parts, such as turbine blades and disks. A further object of the invention is the provision of a method that generates useful quantitative data on mass transfer within a molten pool of metal.

• Research Organization: Department of the Interior, Washington, DC (United States)
• Assignee: Department of the Interior, Washington, DC.
• Patent Number(s): PAT-APPL-7-618 196
• Application Number: TRN: 91-026754
• OSTI ID: 5344675
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HAFNIUM
NEUTRON ACTIVATION ANALYSIS
LIQUID METALS
METALS
MELTING
CONFIGURATION
FURNACES
HAFNIUM ADDITIONS
INCLUSIONS
INVENTIONS
MASS TRANSFER
MONITORS
QUANTITATIVE CHEMICAL ANALYSIS
TITANIUM ALLOYS
TITANIUM NITRIDES
TURBINE BLADES
ZIRCONIUM ALLOYS
ACTIVATION ANALYSIS
ALLOYS
CHEMICAL ANALYSIS
ELEMENTS
FLUIDS
HAFNIUM ALLOYS
LIQUIDS
MEASURING INSTRUMENTS
NITRIDES
NITROGEN COMPOUNDS
PHASE TRANSFORMATIONS
PNICTIDES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360101* - Metals & Alloys- Preparation & Fabrication
360102 - Metals & Alloys- Structure & Phase Studies
400101 - Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures