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Metallurgy Division Annual Progress Report for Period Ending October 10, 1957

Description: High-Temperatare Metallurgy. A series of Inconel loops were operated to study the variation with time of depth of corrosion, effect of flow rate on corrosion, and effect of temperature drop on corrosion using fused salts. The corrosive effects of fused salts on Hastelloy B and Ni--Mo alloys are discussed. A series of Inconel--Na and Inconel-NaK forced circulation loops was operated to study the mass transfer in the systems. The mass transfer between Na and forced circulation loop of stainless s… more
Date: December 13, 1957
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending April 30, 1952

Description: Thorium Research. The effect of quenching temperature on the hardness of Th--C alloys is described. The effect of quenching temperature and oxygen content on the hardness of Th--O, alloys is discussed. The effects of Be, Cr, and C additions on the properties of pure Th are described. The mechanical properties, recrystallization, and fabrication of Th are given. Preferred Orientation of Uranium. Fabricating conditions, preferred orientation, and examination of alpha-extruded U rods are given. Th… more
Date: September 22, 1952
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending January 31, 1951

Description: The stability and corrosion resistance of thorium exposed to eutectic NaK were investigated. Satisfactory results on thorium tube or rod fabrication by means of extrusion were obtained. Rolling and swaging thorium presented no difficulty but drawing proved unsuccessful. Strainhardening values of iodide thorium were about half of those of Ames thorium. The fubrication of unanium tubing by extrusion was successful in the alpha but not in the gamma nange. By increasing the extrusion ratio, an incr… more
Date: June 1, 1951
Creator: Miller, E. C. & Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending January 31, 1952

Description: Progress is reported on the following projects: Th alloy development, mechanical properties of Th, tensile properties and preferred orientation of Th, triple-dip slug canning, texture studies, fundumental studies of alloying, static cerrosion tests with low melting point alloys, dynamic corrosion testing of fluoride materials, mass transfer, structures of liquid Pb and liquid Bi, fabrication of tubular laminates for fuel elements, creep of Th, cone-arc welding, Homogeneous Reactor Experiment me… more
Date: August 28, 1952
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending January 31, 1953

Description: A study was made of the effect of the addition of V aad Si on the properties of Th; corrosion of stainless steel in uranyl sulfate; corrosion, brazing, and welding of stainless steel; properties of Ti; method of combining deuterium and O for return to the reactor; spot welding of fuel elements; fabrication of reactor fuel elements; mechanical testing of U, Th, and stainless steel; surface rearrangements on a single crystal of Cu in contact with a saturated solution of Cu in Bi; development of c… more
Date: April 1, 1953
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending July 31, 1952

Description: The effect of strain rate on the tensile properties of thorium is being investigated. It was found that the yield strength increases slightly with increasing strain rate, and that tensile strength increases but to a lesser extent. The shear modulus was determined to be 4.26 x 10/sup 6/ psi. A preprocess thorium was made, giving a value of 5.0871 plus or minus 0.0002 A. Studies on the fabrication of thorium by extrusion and drawing were continued, as were studies on the extrusion cladding of tho… more
Date: February 1, 1952
Creator: Miller, E. C. & Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending July 31, 1952

Description: Physicsl Metsllurgy of Reactor Materials. Mechanical properties of a series of Th--C alloys ranging in C content from 0.02 to 0.22% wcre determined. The effect of quenching temperature on the hardness of pure Th was investigated. The effcct of aging temperature on the hardness of Th-- Cr alloys was determined. The effect of quenching temperature on the hardness of Th--Cr--C alloys is given. Data are given on the mechanical properties of Ames Th. The effect of cold work on the recrystallization … more
Date: December 1, 1952
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending October 31, 1950

Description: Minor changes in materials and methods resulted in increased yields in the production of fuel elements for the Bulk Shielding Facility. Attempts to bond uranium to a mercury-- silver alloy resulted in bonds of insufficient strength. Thorium alloys containing 2 to 4% Nb. Cr. Mn, Ti, Zr, Be. Al, and Si were prepared. The alloys containing Be, Al. or Si were hard, brittle, and not cold-workable. The alloys containing the other elements were coldworkable in the as-cast condition. Impact testing of … more
Date: February 1, 1951
Creator: Miller, E. C. & Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending October 31, 1951

Description: Eleven thorium-carbon alloys in the range 0.02 to 2.0% carbon were prepared by vacuum-arc melting. The hardness varied from 19 R/sub A/ for the 0.02% alloy to 108 R/sub B/ for the 2.0% alloy. The preparation of thorium- chromium alloy was hampered by a reaction with the zirconia molds, which results in porosity in the casting. The failure of aluminum-silicon bonded X-10 slugs after heat treatment for seven days at 400 deg C was traced to the failure to remove tin after the tin dip and the prese… more
Date: April 21, 1952
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Quarterly Progress Report for Period Ending October 31, 1952

Description: Physieal Metallurgy. In the study of Th alloys, it has been found that the addition of Nb and V to Th produces a slight strengthening effect with the first small additions, but that large additions result in a lowering of strength with corresponding increases in ductility. The melting point of iodide Th was measured as being 1755 deg C. Studies of a series of Th--C alloys, with C content up to 0.13%, indicate that C does not affect the temperatures for the start and completion of recrystallizat… more
Date: October 31, 1960
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Semiannual Progress Report for Period Ending April 10, 1954

Description: Transformation kinetics studies were started on Ag - Zr alloys. Tensile properties of Th alloys with additions of 2 and 4% Ti and varving C content were determined. The production of U - Al alloys by reduction of UO/sub 2/F/sub 2/ in a cryolite slag was demonstrated. Dynamic corrosion experiments including impact tests on commercial-purity titanium samples exposed to oxygen-preseurized UO/sub 2/SO/sub 4/ periods in excess of 500 hr indicated that no change in impact behavior occurred. Similar t… more
Date: August 1, 1954
Creator: Bridges, W. H.
Item Type: Refine your search to only Report
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Metallurgy Division Semiannual Progress Report for Period Ending April 10, 1956

Description: Tests of materials for use in liquid-metal and fused-salt systems were continued. Corrosion tests, penetrability tests, thermal tests, and solubility tests were conducted on structural alloys, brazing alloys, special alloys, cermets, carbides, nitrides, and rare-earth oxides. Progress in loop design and testing is reported. Hastelloy W creep and stress testing and general welding and brazing tests and investigations are reported. Development work is reported in nickel-molybdenum base alloys and… more
Date: November 1, 1956
Item Type: Refine your search to only Report
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Metallurgy Division Semiannual Progress Report for Period Ending October 10, 1956

Description: Progress is reported in corrosion studies of stainless steels, Nb, Zr, Al- Fe-Mo, Mo, Ni alloys, and Al- Ni by various materials including Na, Na-K, Li, Rb, and fused salts, Corrosion studies in pump loops of various materials by fused salts and liquid metals are reported, Fuel elements and shielding materials for ART and APPR are beirg developed. General studies in welding and brazing, nondestructive testing, fabrication, and inspection are described. Developments in high-temperature metals an… more
Date: October 31, 1960
Item Type: Refine your search to only Report
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