Abstract: A method of making steel wire is described that includes the step of forming a length of wire from a high strength, corrosion resistant alloy. The alloy preferably has the following composition in weight percent. Carbon 0.03 max. Manganese 0.15 max. Silicon 0.15 max. Phosphorus 0.015 max. Sulfur 0.010 max. Chromium 19.00-21.00 Nickel 33.00-37.00 Molybdenum ?9.00-10.50 Titanium 1.00 max. Boron 0.010 max. Iron 1.00 max. The balance of the alloy is cobalt and usual impurities. The wire is annealed at a combination of temperature and time effective to provide a grain size of about ASTM 6 or finer. The annealed wire is then drawn such that the cross-sectional area of the wire is reduced by about 50 to 80%.

Abstract: Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The endoprostheses comprise a tubular member capable of maintaining patency of a bodily vessel. The tubular member includes a mixture of at least two compositions, where the presence of the second composition gives the mixture a greater hardness than that of the first composition alone. The first composition includes less than about 25 weight percent chromium, less than about 7 weight percent molybdenum, from about 10 to about 35 weight percent nickel, and iron. The second composition is different from the first and is present from about 0.1 weight percent to about 5 weight percent of the mixture.

Abstract: Medical devices, such as endoprostheses, and methods of making the devices are disclosed. The endoprostheses comprise a tubular member capable of maintaining patency of a bodily vessel. The tubular member includes a mixture of at least two compositions, where the presence of the second composition gives the mixture a greater hardness than that of the first composition alone. The first composition includes less than about 25 weight percent chromium, less than about 7 weight percent molybdenum, from about 10 to about 35 weight percent nickel, and iron. The second composition is different from the first and is present from about 0.1 weight percent to about 5 weight percent of the mixture.

Abstract: An age hardenable nickel base chromium, molybdenum, alloy as well as intermediate products and articles made therefrom are disclosed which, in the solution treated and age hardened condition, have a 0.2% yield strength greater than 100 ksi combined with resistance to pitting and crevice corrosion and to stress corrosion cracking in chloride and sulfide environments at elevated temperatures up to about 500.degree. F. without requiring working below the recrystallization temperature of the alloy. Broad and preferred ranges are disclosed as follows:______________________________________ Broad (w/o) Preferred (w/o) ______________________________________ C 0.1 Max. 0.03 Max. Mn 5 Max. 2 Max. Si 1 Max. 0.5 Max. P 0.03 Max. 0.015 Max. S 0.03 Max. 0.010 Max. Cr 16-24 18-22 Mo 7-12 7.5-11 W 4 Max. -- Nb 2-6 2.75-4.25 Ti 0.50-2.5 0.75-1.5 Al Trace-1 0.05-0.35 B 0.02 Max. 0.001-0.006 Zr 0.50 Max. 0.08 Max. Co 5 Max. -- Cu 0-3 0.5 Max. N 0.04 Max. 0.01 Max. Fe 20 Max.

Abstract: A precipitation hardenable, nickel-base alloy having improved intergranular stress corrosion cracking resistance in water environments at temperatures up to about 700.degree. F. is disclosed containing in weight percent about:______________________________________ w/o ______________________________________ Carbon up to 0.25 Manganese up to 1.0 Silicon up to 0.80 Phosphorus up to 0.025 Sulfur up to 0.010 Chromium 10-25 Molybdenum up to 1 Aluminum 0.2-1.5 Titanium 1.5-3 Niobium 0.10-3 Iron 0.1-20 Boron 0.0005-0.004 Copper up to 2.0 Cobalt up to 25 Zirconium up to 0.07 ______________________________________the balance being essentially nickel. The unique properties of the alloy are provided within the stated ranges when: (a) at least about 0.30% molybdenum is present when the allow contains more than about 0.003% boron and more than about 0.001% zirconium; (b) no more than about 0.002% boron is present when the alloy contains more than about 0.05% zirconium; and (c) not more than about 0.

Abstract: Automatic liquid scintillation counting apparatus including a scintillating medium in the elevator ram of the sample changing apparatus. An appropriate source of radiation, which may be the external source for standardizing samples, produces reference scintillations in the scintillating medium which may be used for correction of the gain of the counting system.

Abstract: A precipitation hardenable nickel base alloy that provides a novel combination of elevated temperature strength, ductility, and reduced notch sensitivity at temperatures up to about 1300° F. is described. The alloy contains, in weight percent, about Carbon 0.10 max. Manganese 0.35 max. Silicon 0.2-0.7 Phosphorus 0.03 max. Sulfur 0.015 max. Chromium 12-20 Molybdenum 4 max. Tungsten 6 max. Cobalt 5-12 Iron 14 max. Titanium 0.4-1.4 Aluminum 0.6-2.6 Niobium 3-7 Boron 0.003-0.015 the balance being nickel and usual impurities. An article made from the alloy and a method of making the alloy are also disclosed.