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

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

OSTI ID:4792606

Kirkpartick, 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. 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 are formed peritectically at 1170 deg C (2138 deg F), 1160 deg C (2120 deg F), ll80 deg C (2156 deg F), and 1300 deg C (2372 deg F), respectively. The phases NiZr/sub 2/, NiZr, and Ni/sub 7/Zr/sub 2/ melt congruently at 1110 deg C (2030 deg F), 1240 deg C (2264 deg F), and 1410 deg C (2570 deg F), respectively. Crystallographic data for several of these intermediate phases are also presented. The intermediate phases which form in the nickel-hafnium system are equivalent to the corresponding nickel zirconium phases in that their compositions, modes of formation and crystal structures are analogous. (auth)

• Research Organization: Ames Lab., Ames, Iowa
• NSA Number: NSA-16-010578
• OSTI ID: 4792606
• Report Number(s): IS-280
• 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

CHEMICAL REACTIONS
CONFIGURATION
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
EUTECTICS
HAFNIUM ALLOYS
HIGH TEMPERATURE
INTERMETALLIC COMPOUNDS
LATTICES
LIQUIDS
MEASURED VALUES
MELTING POINTS
METALLOGRAPHY
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
PERITECTICS
PHASE DIAGRAMS
QUANTITATIVE ANALYSIS
SOLIDS
TEMPERATURE
X RADIATION
ZIRCONIUM ALLOYS