Download or read book Steels for Large Solid propellant Rocket motor Cases written by Battelle Memorial Institute. Defense Metals Information Center and published by . This book was released on 1962 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of Ultrahigh strength Hardenable Steels for Solid propellant Rocket motor Cases written by H. J. Hucek and published by . This book was released on 1961 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Considerations in Selecting Materials for Large Solid propellant Rocket motor Cases written by Charles Wesley Bert and published by . This book was released on 1962 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Welded Fabrication of Steel Solid propellant Rocket motor Cases written by Milton Dudley Randall and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review and Comparison of Alloys for Future Solid propellant Rocket motor Cases written by and published by . This book was released on 1963 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Investigation and Evaluation of High Strength Steels in Heavy Gauges for Large Diameter Solid Propellant Rocket Engine Cases written by EXCELCO DEVELOPMENTS INC SILVER CREEK N Y. and published by . This book was released on 1963 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research program includes the examination of candidate high strength steels (AMS 6434, D6AC, and Maraging 18% Nickel Steel) to determine the best candidate steel for use in large diameter solid propellant booster cases. Included are mechanical and physical properties, fabrication techniques, and tentative specifications and procedures for construction by the rolled and welded method of construction. Specific requirements are the examination of plate and forgings 3/8 in. to 2 in. thick to determine mechanical and physical properties of the candidate materials welded and unwelded. Further, fabrications processes examined are forming, welding, machining, drilling and tappiog, sawing burning, and heat treating. The results indicate that 250 Ksi Maraging Nickel Steel appears to be the best candidate. This is based on the basis of mechanical strength, Gc values, weldability, and the case with which this material can be aged to the strength levels required. (Author).
Download or read book New Developments in Welded Fabrication of Large Solid fuel Rocket motor Cases written by Milton Dudley Randall and published by . This book was released on 1962 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The predominant welding processes used in fabricating motor cases are inert-gas-shielded welding and resistance-seam welding. Three significant conclusions have been drawn relating to welded fabrication of motor cases: (1) Welding is not currently a limiting factor on the strength levels obtainable in production cases. These cases are being made of high-strength steels heat treated to strength levels between 190,000 and 210,000 uniaxial yield strength. (2) Welding could be used in motor cases in the near future at the following uniaxial-yield-strength levels: 170,000 psi - Ti alloys; 240,000- 250,000 psi low-alloy and hot-work die steels; and 280,000300,000 psi - Coldworked stainless steel or MarAging steels. (3) Welding may be used in motor cases in 2 to 4 years at the following uniaxialyield-strength levels: 200,000 psi - Titanium alloys; 260,000- 300,000 psi - Low-alloy and hotwork die steels; and 340,000 psi - Coldworked stainless steel or Mar-Aging steels. (Author).
Download or read book A REVIEW AND COMPARISON OF ALLOYS FOR FUTURE SOLID PROPELLANT ROCKET MOTOR CASES written by and published by . This book was released on 1963 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic materials for solid-propellant rocketmotor cases in the period 1965-1970 probably will be confined to steel and alloys of titanium and aluminum. Of the three, titanium alloys have the greatest potential on the basis of usable strength-to-density ratio, followed by steel and aluminum alloys. Of the potential steel alloys, by far the most of the current development work is being done on the 18 per cent nickel maraging steels. These steels have the promise of good fracture toughness at high strength levels, and perhaps most important, their heat treatment is favorable for the fabrication of very large boosters, compared to steels that must be austenitized after forming. Of steels that must be austenitized, quenched, and tempered, the modified silico-manganese steels, S5 tool steels, and AISI 9250 spring steel have outstanding potential. Titanium alloys continue to be relatively expensive, but they still have the greatest strengthto-density potential, and, in addition, possess outstanding resistance to corrosion. Development of new titanium alloys is being pursued with the possibility of better titanium alloys being developed. Even though aluminum alloys are not now used in rocket-motor case fabrication, newer alloys are being developed and tested, and may be feasible for such applications in the future.
Download or read book Department of Defense Refractory Metals Sheet Rolling Program written by D. J. Maykuth and published by . This book was released on 1965 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the third of a series which will periodically summarize the status of the various contracts involved in the Department of Defense Refractory Metals Sheet Rolling Program. Under this program, selected candidate materials are being carried through one or more of the following consecutive phases: Phase I, development of a sheet-production practice; Phase II, establishment of minimum design data; and Phase III, evaluation of sheetfabrication characteristics. To the present time, 13 contracts have been funded or planned in support of the Phase I, II, and III activities. This report summarizes the status of each of these individual contracts as of November 1, 1964. The first section describes the overall program of the Department of Defense Refractory Metals Sheet Rolling Program. Following, in the order of their discussions, are sections dealing with fabricable molybdenum alloys, unalloyed tungsten, columbium alloys, and tantalum alloys. (Author).
Download or read book Structural Considerations in Developing Refractory Metal Alloys written by R. I. Jaffee and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress made in applying advanced techniques and structural concepts to the problem of strengthening the Group VI-A metals, Cr, Mo, and W, is examined. At low temperatures, T/Tm
Download or read book Joining of Nickel base Alloys written by R. M. Evans and published by . This book was released on 1962 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Discussion of the Physical Metallurgy of the 18 Per Cent Nickel Maraging Steels written by Albert M. Hall and published by . This book was released on 1963 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various aspects of the physical metallurgy of the 18 % nickel maraging steels are discussed in this report in the light of the knowledge which has thus far been accumulated on these steels. The 18 % nickel type of maraging steel was singled out for discussion because of its especially attractive combination of strength and fracture toughness, the comparative simplicity with which it can be hardened, and the relative ease with which it can be formed and joined. The highnickel maraging steels are considered to be outstanding members of a loose-knit family of agehardenable or precipitation-hardenable martensitic steels. Some comparisons and analogies are drawn among various members of this family with particular reference to the 18% nickel steels. (Author).
Download or read book The Metallurgy Behavior and Application of the 18 percent Nickel Maraging Steels A Survey written by A. M. Hall and published by . This book was released on 1968 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report resulted from a survey of users and manufacturers of maraging steels, Government agencies, research institutions, and published literature. It presents the technical status of the 18-percent nickel maraging steels in detail and brings together a large body of knowledge with regard to the metallurgical and engineering aspects of maraging steels. Since such steels were first announced in 1959, they have become highly important in aerospace, defense, and industrial work. The requirements of the National Aeronautics and Space Administration have given impetus to their development, and research now underway is expected to result in further improvements and applicability. The NASA Office of Technology Utilization sponsored this report as part of its program to disseminate information on technological developments which appear to be useful for general industrial applications.
Download or read book The Status and Properties of Titanium Alloys for Thick Plate written by G. E. Faulkner and published by . This book was released on 1963 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineering Properties of Columbium and Columbium Alloys written by F. F. Schmidt and published by . This book was released on 1963 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a state-of-the-art survey covering niobium and 18 of its most promising alloys are presented. All data are given in tabular and graphical form covering some of the more important physical, mechanical, and metallurgical properties for each material. References are given at the conclusion of each material section.
Download or read book The Engineering Properties of Tungsten and Tungsten Alloys written by F. F. Schmidt and published by . This book was released on 1963 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of a state-of-the-art survey covering tungsten and ten of its alloys are presented. All data are given in tabular and graphical form covering some of the more important physical, mechanical, and metallurgical properties for each material. References are given at the conclusion of each material section.
Download or read book The Effect of Fabrication History and Microstructure on the Mechanical Properties of Refractory Metals and Alloys written by Albert G. Imgram and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the present knowledge concerning the relationship among fabrication history, metallurgical structure, and the mechanical properites of the refractory metals columbium, tantalum, bolybdenum, and tungsten, and their alloys. These are the refractory metals currently reveiveing the most attention for aerospace applications, and are therefore the materials considered in this survey. The report is organized into three main sections, titled ''Fabrication'', ''Microstructure and Alloying'', and ''Interstitial Impurities''. The data presented were selected as those which best illustrate the topics discussed. Descriptions of the metaljurgical principles involved are included. Suggestions for optimizing mechanical properties by controlling metallurgical structure are made where possible. (Author).
