PHASE RELATIONSHIPS IN THE NICKEL-ZIRCONIUM AND NICKEL-HAFNIUM ALLOY SYSTEMS

Journal Article · Fri Sep 01 04:00:00 EDT 1961 · Trans. Am. Soc. Metals

OSTI ID:4802300

Kirkpatrick, M E; Larsen, W L

The phase diagram for the nickel--zirconium alloy system was established through solidus and liquidus temperature determinations, temperature vs resistance measurements, metallographic examinations and x-ray diffraction investigations and is presented. The intermediate phases Ni/sub 11/Zr/sub 9/, Ni/ sub 10/Zr/sub 7/, Ni/sub 5/Zr/sub 2/, and Ni/sub 5/Zr we re formed peritectically at 1170 (2138 deg F), 1160 (2120 deg F), 1180 (2156 deg F), and 1300 deg C (2372 deg F), respectively. The phases NiZrsub 2/, NiZr, and Ni/sub 7/Zrsub 2/ melted congruently at 1110 (2030 deg F), 1240 (2264 deg F), and 1410 deg C (2570 deg ), respectively. Crystallographic data for several of these intermediate phases are presented. the intermediate phases which form in the nickel-hafnium system are equivalent to the corresponding nickelzirconium phases in that their compositions, modes of formation and crystal structures are analogous. (auth)

• Research Organization: Ames Lab., Ames, Iowa.
• NSA Number: NSA-16-025819
• OSTI ID: 4802300
• Journal Information: Trans. Am. Soc. Metals, Journal Name: Trans. Am. Soc. Metals Vol. Vol: 54
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CRYSTALS
DIFFRACTION
EUTECTICS
HAFNIUM ALLOYS
HIGH TEMPERATURE
LATTICES
LIQUIDS
MEASURED VALUES
MELTING
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
PHASE DIAGRAMS
PREPARATION
QUALITATIVE ANALYSIS
SOLIDS
TEMPERATURE
X RADIATION
ZIRCONIUM ALLOYS