Research And Development On High-Pressure-High-Temperature Metallurgy
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Report Number: WADD TR 60-893 Part II
Author(s): Kulin, S. A., Kaufman, L., Radcliffe, S. V., Harvey, J. S., Clougherty, E., Tanner, L. E. , Schatz, M., Bernstein, H., Blackburn, L.
Corporate Author(s): ManLabs, Inc.
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-08
Pages: 121
Contract: AF 33(616)-6837
DoD Project: 7351 - Metallic Materials
DoD Task: 735103
Identifier: AD0287200
Abstract:
The kinetics of recrystallization of polycrystalline copper (99.999% purity) cold-rolled to 98% reduction were determined by means of an x-ray diffraction technique for the temperature range 80° - 170°C at atmospheric pressure and at 42 kilobars. High pressure is found to retard both the initiation and rate of recrystallization. The effect of high pressure on the Hall voltage of cerium has been determined. A study of the pressure-temperature characteristics of the transformation of the hexagonal phase, MoC0.67, to the cubic phase, MoC0.67+x has been completed. The role of carbon deficiency in the transformation was investigated. The results of a series of experiments designed to investigate pressure-quenching in several different iron-nickel alloys are reported. Thermodynamic data obtained at one atmosphere is used to correlate the high-pressure transitions in thallium and tin. Several iron-carbon alloys and plain carbon steel ranging from 0.08 to 1.23 wt percent carbon content have been subjected to various heat treatments at a pressure of 42 kilobars. A series of experiments in which pressure is used to enhance the mechanical properties of selected steels is described together with the apparatus employed
Provenance: Lockheed Martin Missiles & Fire Control
Author(s): Kulin, S. A., Kaufman, L., Radcliffe, S. V., Harvey, J. S., Clougherty, E., Tanner, L. E. , Schatz, M., Bernstein, H., Blackburn, L.
Corporate Author(s): ManLabs, Inc.
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-08
Pages: 121
Contract: AF 33(616)-6837
DoD Project: 7351 - Metallic Materials
DoD Task: 735103
Identifier: AD0287200
Abstract:
The kinetics of recrystallization of polycrystalline copper (99.999% purity) cold-rolled to 98% reduction were determined by means of an x-ray diffraction technique for the temperature range 80° - 170°C at atmospheric pressure and at 42 kilobars. High pressure is found to retard both the initiation and rate of recrystallization. The effect of high pressure on the Hall voltage of cerium has been determined. A study of the pressure-temperature characteristics of the transformation of the hexagonal phase, MoC0.67, to the cubic phase, MoC0.67+x has been completed. The role of carbon deficiency in the transformation was investigated. The results of a series of experiments designed to investigate pressure-quenching in several different iron-nickel alloys are reported. Thermodynamic data obtained at one atmosphere is used to correlate the high-pressure transitions in thallium and tin. Several iron-carbon alloys and plain carbon steel ranging from 0.08 to 1.23 wt percent carbon content have been subjected to various heat treatments at a pressure of 42 kilobars. A series of experiments in which pressure is used to enhance the mechanical properties of selected steels is described together with the apparatus employed
Provenance: Lockheed Martin Missiles & Fire Control