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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 289 records · Page 16

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NASA NTRS1966

Dimple, spall, and perforation characteristics in aluminum, columbium, and steel plates under hypervelocity impact

Dimple, spall, and perforation of aluminum, niobium, and steel plates under hypervelocity impact

METEOROID HAZARD↗

NASA NTRS1966

Hypervelocity impacts into stainless-steel tubes armored with reinforced beryllium

Hypervelocity impact into stainless steel tubes armored with reinforced beryllium

HYPERVELOCITY IMPACT↗

NASA NTRS1966

Vacuum thermionic work functions of polycrystalline Be, Ti, Cr, Fe, Ni, Cu, Pt, and type 304 stainless steel.

Vacuum thermionic work functions of polycrystalline Be, Ti, Cr, Fe, Ni, Cu, Pt and type 304 stainless steel

VACUUM EFFECT↗

NASA NTRS1966

Electron and ion emission from polycrystalline surfaces of Be, Ti, Cr, Ni, Cu, Pt, and type-304 stainless steel in cesium vapor.

Electron and ion emission from polycrystalline surface of Be, Ti, Cr, Ni, Cu, Pt and type-304 stainless steel in cesium vapor

ION EMISSION↗

NASA NTRS1967

Study made of corrosion resistance of stainless steel and nickel alloys in nuclear reactor superheaters

Experiments performed under conditions found in nuclear reactor superheaters determine the corrosion rate of stainless steel and nickel alloys used in them. Electropolishing was the primary surface treatment before the corrosion test. Corrosion is determined by weight loss of specimens after defilming.

Greenberg, S.↗

NASA NTRS1967

Controlled ferrite content improves weldability of corrosion-resistant steel

Corrosion-resistant steel that adds restrictions on chemical composition to ensure sufficient ferrite content decreases the tendency of CRES to develop cracks during welding. The equations restricting composition are based on the Schaeffler constitution diagram.

Malin, C. O.↗

NASA NTRS1967

Materials data handbooks prepared for aluminum alloys 2014, 2219, and 5456, and stainless steel alloy 301

Materials data handbooks summarize all presently known properties of commercially available structural aluminum alloys 2014, 2219, and 5456 and structural stainless steel alloy 301. The information includes physical and mechanical property data and design data presented in tables, illustrations, and text.

Source record↗

NASA NTRS1967

Ultrasonics permits brazing complex stainless steel assembly without flux

Ultrasonic vibration of an assembly of stainless steel instrumentation tubes ensures brazing without flux. Vibration with an ultrasonic transducer permits the brazing material to flow down each tube in contact with a seal plug installed in a pressure vessel wall.

Baker, W. H.↗

NASA NTRS1967

Study to minimize hydrogen embrittlement of ultrahigh-strength steels

Hydrogen-stress cracking in high-strength steels is influenced by hydrogen content of the material and its hydrogen absorption tendency. Non-embrittling cleaning, pickling, and electroplating processes are being studied. Protection from this hydrogen embrittlement is important to the aerospace and aircraft industries.

Elsea, S. T.↗

NASA NTRS1967

Effects of heat input rates on T-1 and T-1A steel welds

Technology of T-1 and T-1A steels is emphasized in investigation of their weld-fabrication. Welding heat input rate, production weldment circumstances, and standards of welding control are considered.

Davis, R. A.↗

NASA NTRS1967

High-strength braze joints between copper and steel

High-strength braze joints between copper and steel are produced by plating the faying surface of the copper with a layer of gold. This reduces porosity in the braze area and strengthens the resultant joint.

Kuhn, R. F.↗

NASA NTRS1967

Welding of AM350 and AM355 steel

A series of tests was conducted to establish optimum procedures for TIG welding and heat treating of AM350 and AM355 steel sheet in thicknesses ranging from 0.010 inch to 0.125 inch. Statistical analysis of the test data was performed to determine the anticipated minimum strength of the welded joints.

Davis, R. J.↗

NASA NTRS1967

Stabilizing stainless steel components for cryogenic service

Warpage and creep in stainless steel valve components are decreased by a procedure in which components are machined to a semifinish and then cold soaked in a bath of cryogenic liquid. After the treatment they are returned to ambient temperature and machine finished to the final drawing dimensions.

Holden, C. F.↗

NASA NTRS1966