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Weldability Studies Of Three Commercial Columbium Base Alloys
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Book Synopsis Weldability Studies of Three Commercial Columbium-base Alloys by : P. A. Kammer
Download or read book Weldability Studies of Three Commercial Columbium-base Alloys written by P. A. Kammer and published by . This book was released on 1963 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A group of niobium-base alloys is being considered for addition to the Department of Defense Refractory Metals Sheet Rolling Program. Good weldability is one of the requirements. Two alloys under consideration are B- 66, and FS-85. A third alloy, C-129 was also included in this evaluation. Samples of these three alloys were obtained for a brief weldability evaluation to determine whether the alloys met the target properties established by the Materials Advisory Board, Refractory Metals Sheet Rolling Panel-Alloy Requirements and Selection Group. Bend tests made on base-metal samples showed that all alloys met the target properties for base metal. Bend tests of welds made in a vacuum-purged controlled-atmosphere chamber showed that only the welds in the FS-85 alloy possessed the desired target properties.
Book Synopsis Mechanical and Physical Properties of Three Superalloys - MAR-M200, MAR-M200, MAR-302, and MAR-M322 by : J. A. VanEcho
Download or read book Mechanical and Physical Properties of Three Superalloys - MAR-M200, MAR-M200, MAR-302, and MAR-M322 written by J. A. VanEcho and published by . This book was released on 1964 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Observations of the Distribution of Stress in the Vicinity of a Crack in the Center of a Plate by : L. R. Jackson
Download or read book Some Observations of the Distribution of Stress in the Vicinity of a Crack in the Center of a Plate written by L. R. Jackson and published by . This book was released on 1963 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary purpose of this memorandum was to make the results of Neuber's stress analysis more readily usable by those engaged in evaluating the crack sensitivity of materials. While the more intense effect of a crack dies out rapidly near the crack tip, a measurable effect does persist over a great enough area that strain gages could be used to determine the extent to which Neuber's analysis can be applied to granular materials like metals and alloys. The results indicate that, except in the immediate vicinity of the crack tip, the stress field is quite insensitive to crack geometry. (Author).
Book Synopsis Consideration of Steels with Over 150,000 Psi Yield Strength for Deep-submergence Hulls by : G. K. Manning
Download or read book Consideration of Steels with Over 150,000 Psi Yield Strength for Deep-submergence Hulls written by G. K. Manning and published by . This book was released on 1963 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three types of ferrous materials that deserve to be considered as future hull materials are discussed. The present state of knowledge can be summarized this way: quenched and tempered steels with 0.20% carbon and yield strengths of about 170,000 psi can probably be developed into a useful hull material in less time than either of the other two classes. Maraging steels have great potential if it is possible to improve their toughness. This may be resolved within a few months and surely within a year. The stable austenitic steels appear to offer the greatest potential, but less is known about these than about the other two classes of materials. (Author).
Book Synopsis Reactivity of Titanium with Gaseous N2O4 Under Conditions of Tensile Rupture by : J. D. Jackson
Download or read book Reactivity of Titanium with Gaseous N2O4 Under Conditions of Tensile Rupture written by J. D. Jackson and published by . This book was released on 1963 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preparation and Properties of Fiber-reinforced Structural Materials by : D. E. Price
Download or read book Preparation and Properties of Fiber-reinforced Structural Materials written by D. E. Price and published by . This book was released on 1963 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic fibers in the form of whiskers, chopped fine wire, or wool have been incorporated into metallic matrices by two principal methods: classical powder-metallurgical methods, and infiltration of the fibers with molten matrix metal. Ceramic fibers, notably alpha-A1203, have been used as whiskers or wool for reinforcing metallic matrices, the methods of preparation of the composite being the same as with metallic fibers. When metallic fibers are used to reinforce ceramics, the ceramic is either slip cast into the fiber mat and dried, or a mixture of the fiber and ceramic is hot pressed. Plastics and elastomers are combined with fibers by several methods, for example, dipping a sintered skeleton of the fibers into liquid Teflon. Several programs have resulted in combinations which show that reinforcement of metals by either metallic or alpha-A1203 fibers is possible. Both the room-temperature and elevatedtemperature tensile properties of the composite seem to increase linearly with the volume fraction of the fiber phase. (Author).
Book Synopsis Some Design Aspects of Fracture in Flat-sheet Specimens and Cylindrical Pressure Vessels by : L. R. Jackson
Download or read book Some Design Aspects of Fracture in Flat-sheet Specimens and Cylindrical Pressure Vessels written by L. R. Jackson and published by . This book was released on 1963 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of flat-sheet tensile tests made at different laboratories are re-examined and put on a comparable basis. The materials represented are 7075-T6 clad, 2024-T3 clad, 2014-T6, and 2219-T87 aluminum alloys, and 17-7PH stainless steel. Curves are presented in a form usable by designers. One investigation was concerned with the fracture strength of cylindrical pressure vessels made from 2024-T3 and 7075-T6 aluminum alloys. The data from this investigation are put on the same basis as the flat-sheet data so that comparisons can be made. Conclusions from the data studied in this memorandum are presented and suggestions for additional testing are made. (Author).
Book Synopsis Production Problems Associated with Coating Refractory-metal Hardware for Aerospace Vehicles by : W. A. Gibeaut
Download or read book Production Problems Associated with Coating Refractory-metal Hardware for Aerospace Vehicles written by W. A. Gibeaut and published by . This book was released on 1963 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four coating processes have been scaled up to coat components of aerospace vehicles: (1) slurry, (2) atmospheric-pressure pack cementa tion, (3) vacuum pack cementation, and (4) fluidized bed. The principal advantage of the slurry process is its ability to coat limited access areas such as the interior channels of built-up corrugated panels. This makes the process ideal for coating spot-welded corrugated panels after they have been welded. The other three coating processes, which are vapor-deposi tion processes, are not so suitable for coating limited-access areas. When they are used for parts such as built-up corrugated panels, the individual parts (including rivets) are coated, then riveted together, and then the entire assembly is recoated. This shortcoming is off set by the fact that the coatings applied by the vapor-deposition processes are more protective at higher temperatures than are the slurry coatings.
Book Synopsis Index to DMIC Reports and Memoranda by : Battelle Memorial Institute. Defense Metals Information Center
Download or read book Index to DMIC Reports and Memoranda written by Battelle Memorial Institute. Defense Metals Information Center and published by . This book was released on 1968 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of the Air Force Materials Research and Development Program by : United States. Wright Air Development Division
Download or read book A Review of the Air Force Materials Research and Development Program written by United States. Wright Air Development Division and published by . This book was released on 1954 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of the Air Force Materials Research and Development Program by : Air Force Materials Laboratory (U.S.)
Download or read book A Review of the Air Force Materials Research and Development Program written by Air Force Materials Laboratory (U.S.) and published by . This book was released on 1964 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical reports published by the Air Force Materials Laboratoy during the period 1 July 1962 - 30 June 1963 are abstracted herein. Reports on reseqrch conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included. These reports cover basic and applied research in the materials area being conducted by the Metals and Ceramics Division, Non-metallic Materials Division, Materials Physics Division, Manufacturing Technology Division, and Materials Applications Division of the Air Force Materials Laboratory.
Book Synopsis Creep of Columbium Alloys by : E. S. Bartlett
Download or read book Creep of Columbium Alloys written by E. S. Bartlett and published by . This book was released on 1963 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although much information on high-temperature tensile and stress-rupture properties for various columbium-base materials is readily available, only limited information concerning the more useful creep behavior of columbium alloys has been reported. These data are widely scattered throughout the literature, and little attempt has been made to rationalize the creep behavior of columbium alloys. The purpose of this memorandum is to compile and review existing creep data for columbium alloys to gain insight into their merits and limitations for time-dependent structural service. (Author).
Author :United States. National Aeronautics and Space Administration. Technology Utilization Division Publisher : ISBN 13 : Total Pages :68 pages Book Rating :4.:/5 (3 download)
Book Synopsis Bibliography on Welding Methods, with Indexes by : United States. National Aeronautics and Space Administration. Technology Utilization Division
Download or read book Bibliography on Welding Methods, with Indexes written by United States. National Aeronautics and Space Administration. Technology Utilization Division and published by . This book was released on 1966 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of Available Information on the Welding of Thick Titanium Plate in the User by : Herbert W. Mishler
Download or read book A Review of Available Information on the Welding of Thick Titanium Plate in the User written by Herbert W. Mishler and published by . This book was released on 1964 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observations on Delayed Cracking in Welded Structures of Unalloyed Titanium Sheet by : R. H. Ernst
Download or read book Observations on Delayed Cracking in Welded Structures of Unalloyed Titanium Sheet written by R. H. Ernst and published by . This book was released on 1964 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brief study of delayed fracture in a seam-welded titanium panel is summarized in this memorandum. Examination of the fracture surface with electron microscopy showed that the material cleaved, failing in a brittle manner. Although the nature of the embrittlement was not clearly defined, titanium hydride phase was suspected as a prime contributor to failure. Even though the hydrogen content of the titanium was only 65 ppm, hydride embrittlement was thought to have occurred from precipitation of hydride platelets on crystal planes oriented normal to welding stresses. Other work, briefly discussed in the memorandum, has confirmed that hydride platelets in titanium can be oriented by stress and that tensile ductility of Zircaloy (which behaves similarly with respect to hydrogen, to titanium) depends upon hydride orientation. Stress-relief annealing of welded titanium structures is recommended wherever possible to minimize embrittlement by stress-oriented hydrides. (Author).
