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JP01068438 |
PURPOSE: To improve the fatigue resistance and stress corrosion cracking resistance of the titled covering tube by regulating the weight total of Al and Si incorporated to the base metal of a Zr based covering tube and the weight total o...
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JP01021031 |
PURPOSE: To increase the strength of Zr or a Zr alloy and to decrease the wall thickness of a sheathing pipe by dispersing fine ceramic particles having high hardness in the base phase of the Zr or Zr alloy at the time of producing a nuc...
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JP63307237 |
PURPOSE: To produce a Zr based alloy having high corrosion resistance and low hydrogen absorption characteristics and causing no nodular corrosion by alternately repeating cold plastic working and annealing treatment to the Zr based allo...
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JP63290232 |
PURPOSE: To manufacture a Zr alloy having excellent nodular corrosion resistance by heating the Zr alloy having specific compsn., subjecting it to a quenching treatment and forming appropriately spheroidal crystal grains in the martensit...
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JP63286561 |
PURPOSE: To stably produce a Cu-Zr alloy wire rod having superior heat resistance with no segregation by putting granules of a Cu-Zr mother alloy having a specified diameter and a specified Zr content in molten pure copper and by passing...
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JP63282226 |
PURPOSE: To develop a hydrogen occlusion alloy having superior characteristics, by combining Ti, Zr, Cr, Fe, Mn, and Cu in a specific ratio. CONSTITUTION: An alloy which consists of an intermetallic compound of six elements, Ti-Zr-Cr-Fe-...
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JP63213629 |
PURPOSE: To improve corrosion resistance and mechanical strength, by specifying the contents of Sn, Fe and Cr in a Zr based alloy as well as the total amount thereof and incorporating proper quantity of Nb into said alloy. CONSTITUTION: ...
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JP63179237 |
PURPOSE: To permit definite decision of the corrosion resistance of a zirconium alloy by eliminating the influence of an oxide film of a zirconium alloy test piece at 450W550°C which affects the corrosion of said alloy in steam and is f...
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JP63179034 |
PURPOSE: To improve nodular corrosion resistance and uniform corrosion resistance, by specifying and reducing Sn content in a zirconium alloy with a specific composition. CONSTITUTION: The zirconium alloy has a composition consisting of,...
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JP63145735 |
PURPOSE: To obtain a Zr alloy having an excellent antinodular corrosive characteristic at low cost, by specifying the compsn. consisting of Nb, Sn, Fe, Cr, Ni and Zr. CONSTITUTION: The Zn alloy contains the compsn. consisting of, by weig...
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JP63137150 |
PURPOSE: To improve bendability, by regulating the crystal of a zirconium sheet after final finishing to the prescribed grain size remarkably smaller than that of the conventional crystal. CONSTITUTION: A zirconium slab is subjected, e.g...
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JP63100146 |
PURPOSE: To improve nodular corrosion resistance by limiting respective amounts of Zr as a precipitate in a grain boundary and in a grain and Sn in an intermetallic compound as an additive element in a zirconium-base alloy in which amoun...
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JP63072851 |
PURPOSE: To improve the maximum amount of hydrogen occlusion and hydrogen occluding and releasing velocities of the titled alloy to be obtained and also to improve hysteresis, by specifying a composition of a Zr alloy containing Fe, V, a...
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JP63064901 |
PURPOSE: To adsorb impurity gases, e.g. O2, N2, CO2, etc., in a rare gas and simply and readily purity the rare gas into high purity, by passing the rare gas containing the impurity gases through a hydrogen gas occluding material in a st...
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JP63060248 |
PURPOSE: To obtain a highly corrosion-resistant Zr alloy member free from deterioration in corrosion resistance due to welding and having high strength, by specifying a composition consisting of Nb, Sn, Mo, and Zr. CONSTITUTION: The high...
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JP63050453 |
PURPOSE: To obtain a Zr-base alloy member free from nodular corrosion and white corrosion and having high ductility, by subjecting a Zr-Sn-Nb-Mo alloy to solution heat treatment by rapid cooling, by applying cold working and intermediate...
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JP63035751 |
PURPOSE: To obtain a Zr alloy for nuclear reactor fuel clad pipes excellent in corrosion resistance, by specifying a composition consisting of Sn, Fe, Cr, Ta, and Zr. CONSTITUTION: The Zr alloy has a composition consisting of, by weight,...
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JP63035750 |
PURPOSE: To obtain a Zr alloy for nuclear reactor fuel clad pipe excellent in corrosion resistance, by specifying a composition consisting of Sn, Fe, Cr, Nb, and Zr and also by limiting N content among inevitable impurities. CONSTITUTION...
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JP63035749 |
PURPOSE: To obtain a Zr alloy for nuclear reactor fuel clad pipes excellent in corrosion resistance, by specifying a composition consisting of Sn, Fe, Cr, and Zr and also by limiting N content among inevitable impurities. CONSTITUTION: T...
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JP63033535 |
PURPOSE: To improve the nodular corrosion resistance, uniform corrosion resistance, and hydrogen absorption characteristics of the titled Zr alloy to be obtained, by controlling respective contents of Sn, Fe, Cr, Ni, and Nb. CONSTITUTION...
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JP63020428 |
PURPOSE: To improve the corrosion resistance of a Zr alloy without requiring any special equipment or reducing the ductility by specifying the angle between the central direction of integration of C axes and the surface of the alloy and ...
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JP63018030 |
PURPOSE: To obtain a component material for nuclear fuel elements having superior corrosion resistance to cooling water and improved in stress corrosion cracking resistance, by applying hot rolling and cooling treatment to Zr or Zr alloy...
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JP63011647 |
PURPOSE: To reduce the amt. of the Pt to be used and to improve electrode catalyst activity by adding a specific ratio of Pt to an amorphous alloy consisting of specific ratios of ≥1 kinds of Ni and Co and ≥1 kinds of Ti and Zr or Nb...
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JP63011635 |
PURPOSE: To prevent hydrogen embrittlement by regulating the amount of intermetallic compound to be precipitated to a specific value or above in a Zr alloy containing Sn, Cr, and Ni as corrosion resistance-improving components so as to r...
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JP62297449 |
PURPOSE: To improve the corrosion resistance, ductility and strength of a Zr alloy contg. specified amounts of Nb, Sn and Mo by subjecting the alloy to soln. heat treatment, cold working and aging under prescribed conditions. CONSTITUTIO...
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JP62294143 |
PURPOSE: To easily and inexpensively manufacture a metallic alloy for hydrogen storage represented by a specific rational formula, by heating specific proportions of ferrozirconium, iron, and chromium in a melting furnace to melt them an...
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JP62290854 |
PURPOSE: To improve the corrosion resistance of a channel box made of a Zr alloy contg. Nb, Sn, Mo and Fe by heat treating the channel box obtd. by forming and welding at a prescribed temp. so as to vanish a β-phase contg. supersatd. Nb...
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JP62290837 |
PURPOSE: To obtain a Zr-based alloy member having high corrosion resistance in a weld zone and excellent in cold workability, by forming a weld zone, etc., of a metallic structure in which face-centered cubic crystals α-Nb are finely pr...
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JP62287058 |
PURPOSE: To exactly evaluate the sensitivity to white corrosion in the high-temp. high-pressure water and steam in nuclear reactor environment by immersing a weld heat affected pseudo material formed by quick cooling a Zr alloy from a pr...
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JP62287059 |
PURPOSE: To obtain a fuel spacer for a nuclear reactor having the corrosion resistance to prevent the generation of nodular corrosion, etc., in particular and having high strength by subjecting a Zr alloy contg. Nb, Sn or Mo or/and Fe in...
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JP62287029 |
PURPOSE: To obtain a zirconium alloy excellent in uniform corrosion-resisting characteristics as well as in nodular corrosion resistance, by adding specific amounts of Fe or Ni to Zr. CONSTITUTION: Fe (0.1W1wt%) or Ni (0.01W1wt%) is blen...
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JP62284033 |
PURPOSE: To develop a reversible hydrogen occluding and releasing material easy of initial hydrogenation and having high hydrogen occluding and releasing velocities, by dispersedly incorporating the oxides of rare earth elements to a Zr(...
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JP62228442 |
PURPOSE: To provide high corrosion resistance at high burnup, by regulating the value of Fe/Ni to a specific ratio range and by precipitating a fine intermetallic compound of Sn and Ni in Zr crystalline grains in an α-phase in a Zr-base...
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JP62222037 |
PURPOSE: To obtain a Zr-base alloy excellent in resistance to oxidation by nitric acid by providing a composition consisting of specific amounts of Ti and the balance Zr with inevitable impurities. CONSTITUTION: The Zr-base alloy has a c...
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JP62218526 |
PURPOSE: To enhance the modulus of elasticity by solidifying a molten Al alloy contg. Si, Cu, Ni, Be, Fe or Ti under pressure and by extruding the resulting billet so as to finely disperse an intermetallic compound having high elasticity...
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JP62218527 |
PURPOSE: To enhance the modulus of elasticity by solidifying a molten Mg alloy contg. Si, Cu, Ni, Be, Fe or Ti under pressure and by extruding the resulting billet so as to finely disperse an intermetallic compound having high elasticity...
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JP62207835 |
PURPOSE: To improve the nodular corrosion resistance by adding a specified amount of Sn or O as well as a specified amount of Nb to Zr. CONSTITUTION: The composition of a Zr alloy is composed of 0.2W2.0% Nb, 0.5W3.0% Sn and/or 0.09W0.25%...
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JP62182101 |
PURPOSE: To carry out recovery, storage and supply of tritium gas with single apparatus, by recovering tritium gas from a gaseous mixture by the hydrogenation reaction of an intermetallic compound ZrCo near room temperature, storing the ...
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JP62180030 |
PURPOSE: To provide a turbine moving blade consisting of a lightweight alloy adequate for the longer blade of a steam turbine blade in particular by constitut ing said blade of a metallic member specified respectively in specific strengt...
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JP62180047 |
PURPOSE: To obtain a high ductility and high strength Zr alloy member having superior corrosion resistance by passing a Zr alloy through five stages including the 1st stage in which the alloy is subjected to soln. heat treatment by rapid...
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JP62180027 |
PURPOSE: To provide a Zr alloy member which obviates the generation of nodular corrosion and white full surface corrosion in particular and has excellent corrosion resistance by incorporating Nb, Sn, Fe, and Mo respectively at prescribed...
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JP62103332 |
PURPOSE: To obtain a Zr alloy having superior corrosion resistance even in a solution containing highly oxidizing NO3 by providing a composition containing prescribed amounts of Sn in a Zr matrix. CONSTITUTION: The corrosion-resisting Zr...
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JP62096632 |
PURPOSE: To obtain an inexpensive metallic alloy for hydrogen storage occluding a large amount of hydrogen and easily releasing hydrogen in a wide temp. range by preparing an alloy by blending specific percentage of Zr, Fe and Cr. CONSTI...
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JP62070544 |
PURPOSE: To obtain a new metallic alloy for hydrogen occlusion of Zr type free from reduction in the amount of hydrogen occlusion caused by alloy poisoning by water, O, etc., and very useful as material for hydrogen occlusion and release...
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JP62063625 |
PURPOSE: To produce Zr or Zr alloy which contains C and O2 at an extremely low ratio and has high purity by using a CaO furnace material having high purity as a vessel and melting the Zr or Zr alloy in a non-oxidative atmosphere in the s...
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JP62050485 |
PURPOSE: To obtain a Zr alloy member for atomic power having excellent corrosion resistance in high-temp. and high-pressure water and having high strength by forming a zirconium oxide film contg. the metallic elements of the groups IVWVI...
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JP62033735 |
PURPOSE: To obtain an amorphous alloy having high corrosion resistance and undergoing no corrosion by the formation of a stable passive film even in a severe corrosive environment, e.g., in boiling concd. hydrochloric acid having no oxid...
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JP62033734 |
PURPOSE: To obtain a Zr alloy having high corrosion resistance by blending Zr with specified amounts of Sn, Fe, Cr and Mo. CONSTITUTION: The composition of an alloy is composed of, by weight, 1W2% Sn, 0.1W0.3% Fe, 0.05W0.2% Cr, 0.05W5% M...
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JP62027535 |
PURPOSE: To improve nodular corrosion resistance without damaging strength, ductility, etc., of Zr alloy, by suppressing carbon content in Zr alloy as reactor structural material to grace, and entering carbon into solid soln. in Zr alloy...
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JP62027534 |
PURPOSE: To obtain the titled alloy capable of occluding and releasing a large quantity of hydrogen easily, by melting Zr, Mn, V, Fe at specified ratios and alloying them. CONSTITUTION: Zr, Mn V, Fe are weighed respectively and mixed, pr...
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