Abstract: The high temperature properties of a nickel-base alloy containing correlated percentages of chromium, cobalt, tungsten, molybdenum, titanium, aluminium, carbon, tantalum, niobium, zirconium, hafnium, boron, yttrium and lanthanum are substantially maintainedor improved by further correlation of the percentages of chromium, carbon and boron in the alloy.

Abstract: Articles are electroplated with ruthenium in plating bath containing ruthenium cationic complex [Ru.sub.2 N(NH.sub.3).sub.8 X.sub.2 ].sup.3+. Bath provides advantages of enabling plating in alkaline solution, where desired, and avoids difficulties of protecting articles against attack by acid electrolyte baths.

Abstract: Continuous lengths of metal foil, such as 4 micron thick nickel foil stored in coils, are perforated by anodic etching through a perforated titanium mask while foil and mask are simultaneously moving together through electrolytic etching bath.

Abstract: Metal powders are hot isostatically pressed in a can or container produced from superplastic metal sheet.

Abstract: Process and apparatus for underwater geophysical exploration to prepare surveys of undersea floor areas having solid minerals, such as manganese nodules, dispersed at sea floor surfaces transmits and perceives special acoustic vibrations providing information useful for identifying and delineating sea floor areas where desirably large amounts of solid minerals are present.

Abstract: Apparatus for continuously conducting processes of cleaning, pickling or other fluid treatment of small articles such as metal turnings, cuttings, tags, bolts or coin blanks has rotating inclined drum carrying internal scroll with interruptions for providing countercurrent flows of treatment fluid flowing downward and articles moving upward; special embodiments provide for multiple stage treatments passing through plurality of coaxially rotating drums.

Abstract: Nickel-iron and nickel-iron-cobalt alloys contain chromium and gamma-prime hardening elements in proportions balanced according to special compositional relationships providing desired thermal expansion, inflection temperature, strength and ductility characteristics, particularly including notch strength needed in machinery and structures subjected in use to varying temperatures and thermal gradients where operating temperatures become elevated above 500.degree. F.

Abstract: Matrix-stiffened nickel-iron-chromium-columbium solid-solution alloy with excellent metallurgical stability has heat-resistant and corrosion resistant characteristics especially useful for articles needed to sustain stress in long-time service at elevated temperatures, particularly including superheater tubing in steam power plants. Alloy also has good workability and thermal response characteristics for commercial production of heat-treated wrought products.

Abstract: Iron-based alloy composition containing special proportions of nickel, chromium, aluminum, copper and carbon provides good corrosion-resistance characteristics for service in caustic media, e.g., sodium hydroxide, chloride media, e.g., magnesium chloride, caustic-chloride media, e.g., sodium hydroxide-sodium chloride mixtures, and also when exposed to some acid media, e.g., nitric acid. Special utility particularly includes resistance to stress-corrosion-cracking in hot caustic and chloride media. Alloy has good workability for production of wrought products such as plate, bar and sheet and is also suitable for making corrosion-resistant castings and welded structures, e.g., chemical plant equipment.

Abstract: Nickel-chromium-silicon steel electrode for arc welding provides maraging stainless steel weld deposits having desirable strength, toughness and corrosion resistance in age-hardened condition. Electrode arc can be shielded with inert gas or with lime-cryolite-titania flux containing specially controlled proportions of manganese.

Abstract: Matrix-stiffened nickel-iron-chromium-columbium solid-solution alloy with excellent metallurgical stability has heat-resistant and corrosion resistant characteristics especially useful for articles needed to sustain stress in long-time service at elevated temperatures, particularly including superheater tubing in steam power plants. Alloy also has good workability and thermal response characteristics for commercial production of heat-treated wrought products.

Abstract: Carbonyl nickel powder product relating to B-type carbonyl nickel powder is characterized by very fine particle sizes up to 1.9 Fisher particle size, low percentages of carbon up to 0.03% and high 900.degree. C.-sintering shrinkage of about 25% and has special utility for making sintered filters and magnetically actuated light-reflecting graphic displays.

Abstract: Improvement in undersea mining apparatus, of the kind wherein a hydraulic suction conduit riser is towed from a forwardly moving surface ship while a mixture of liquids and sea-floor solids (such as sea water and manganese nodules) is gathered at the deep sea floor and transported to the sea surface in a liquid-solids flow pumped up through the riser, comprises liquid-solids flow transition chamber that is connected to riser by an intermediate conveyance duct and towed along the undersea floor to gather and transmit solids from undersea floor to riser. Transition chamber has three mutually communicating openings: a forward-facing entrance for gathering sea floor solids, a rearward-facing entrance for admitting a hydraulically induced flow of sea water and a forwardly upward-facing exit port joined with the conveyance duct to direct transmission of liquid-solids mixture flow from chamber into conveyance duct.

Abstract: Cube textured nickel strip produced by process of working and heat treating sulfur-containing nickel metal billets having specially controlled composition and grain size.

Abstract: Ductile junction of metal-sheathed composite wire, such as flux-cored welding wire for use in automatic arc welding machines, is provided by process comprising resistance upset welding.

Abstract: Vehicle constructed for being towed along undersea floor area where desired mineral aggregates, such as manganese nodules, are dispersed on ocean bottom carries apparatus utilizing power from towed motion, hydraulic suction and vehicle-borne motor for acquiring, concentrating and transmitting desired aggregates to conduit for upward transport. Vehicle has motor-powered water impeller, ducting and nozzle for directing pressurized sheet-jet of water rearwardly downward near undersea floor, enclosed ramp inclined rearwardly upward with entrance behind sheet-jet to receive solids dislodged from sea floor by jet, hopper and trough to receive solids moved up ramp by flow of water up ramp when vehicle is towed forward, and separating screens and ducting to direct desired sizes of solids into conduit for delivery to surface ship. Operationally effective path can be widened with horizontally fenestrated sweeps disposed in rearwardly diverging and converging V-patterns.

Abstract: Vehicle adapted for being towed along undersea floor area where desired mineral aggregates, such as manganese nodules, are dispersed on ocean bottom carries horizontally fenestrated sweeps and hydraulic transition chamber utilizing towed motion and hydraulic suction for acquiring, concentrating and transmitting desired aggregates to conduit for upward transport.

Abstract: Heat-resistant alloy containing specially controlled proportions of nickel, chromium, titanium, aluminum, tungsten, molybdenum and tantalum is especially advantageous for production of heat resistant castings having strength and ductility throughout a broad range of temperatures, particularly including stress-rupture strength at 1850.degree.F. and ductility at intermediate temperatures such as 1400.degree.F.

Abstract: Apparatus for separating various sizes of solid minerals, e.g., mixtures of fine sediment and larger particles or aggregates of ore, has rotating drum with internal lifters and external grousers and enables tumbling of solids in stream of water flowing through drum.

Abstract: Nickel-chromium-silicon steel electrode for arc welding provides maraging stainless steel weld deposits having desirable strength, toughness and corrosion resistance in age-hardened condition. Electrode arc can be shielded with inert gas or with lime-cryolite-titania flux containing specially controlled proportions of manganese.