Steels for Large Solid-propellant Rocket-motor Cases
| Author | : Battelle Memorial Institute. Defense Metals Information Center |
| Publisher | : |
| Total Pages | : 46 |
| Release | : 1962 |
| Genre | : Solid propellant rockets |
| ISBN | : |
Steels For Large Solid Propellant Rocket Motor Cases
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Steels for Large Solid-propellant Rocket-motor Cases
| Author | : Battelle Memorial Institute. Defense Metals Information Center |
| Publisher | : |
| Total Pages | : 46 |
| Release | : 1962 |
| Genre | : Solid propellant rockets |
| ISBN | : |
Department of Defense Refractory Metals Sheet Rolling Program
| Author | : D. J. Maykuth |
| Publisher | : |
| Total Pages | : 48 |
| Release | : 1965 |
| Genre | : Heat resistant alloys |
| ISBN | : |
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).
Scientific and Technical Aerospace Reports
| Author | : |
| Publisher | : |
| Total Pages | : 1664 |
| Release | : 1964 |
| Genre | : Aeronautics |
| ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Cracking in High-strength Steel Weldments
| Author | : P. A. Kammer |
| Publisher | : |
| Total Pages | : 132 |
| Release | : 1964 |
| Genre | : Steel |
| ISBN | : |
Weldment cracking is a broad complex field. Even if one considers only cracking of steel weldments, the problems range from cracking at temperatures near the solidus during welding to cracking at room temperature days, weeks, or months after welding is completed. Numerous reports of investigations in this field are contained in the published and unpublished literature. However, most of these reports cover only a particular problem in a specific area of the broad field of weldment cracking. This review attempts to cover the major aspects of the entire field of weldment cracking. Necessarily, the review is for the most part general, only being specific in a few instances to illustrate a point. (Author).
Welding High-strength Steels
| Author | : P. A. Kammer |
| Publisher | : |
| Total Pages | : 68 |
| Release | : 1966 |
| Genre | : Martensitic stainless steel |
| ISBN | : |
Recent studies of the developments in welding steels with yield strengths greater than 150 ksi have included low-alloy martensitic steels, medium-alloy martensitic steels, nickel maraging steels, and bainitic steels. Only weldments from medium-alloy martensitic steels and nickel maraging steels have mechanical properties approaching those of the base plate without a complete postweld heat treatment. The most serious problem with the other steel is low toughness in the weld fusion zone. Adequate weld metal toughness under conditions of elastic strain can be obtarined over the entire 150 to 225 ksi yield-strength range only if the tungsten-arc welding process is used. Processes with higher deposition rates can produce comparable weld deposits only in the lower portion of the range. Above a yield strength of 200 ksi, 18Ni maraging steel weldments have the best combination of strength and toughness. Below 200 ksi, the HP 9-4-25 medium-alloy martensitic steel and 12Ni maraging steel weldments have nearly equal properties.
New Developments in Welding Steels with Yield Strengths Greater Than 150,000 PSI
| Author | : Robert Melvin Evans |
| Publisher | : |
| Total Pages | : 18 |
| Release | : 1965 |
| Genre | : Steel |
| ISBN | : |
The report summarizes the advancements made in the development and welding of steels possessing yield strengths greater than 150,000 psi. Steels discussed include the medium carbon, low-alloy martensitic steels; low carbon alloy martensites; and nickel maraging steels. Almost all programs which have the objective of developing high-strength steels have an equally important phase concerned with filler metal development. Filler metals are also discussed. The new welding processes discussed are Narrow-Gap welding, electron-beam welding, plasma-arc welding, high-frequency resistance welding, electroslag welding, laser welding, and interrupted-arc (dip trasfer) MIG welding. (Author).
D M I C Report
| Author | : Battelle Memorial Institute. Defense Metals Information Center |
| Publisher | : |
| Total Pages | : 166 |
| Release | : 1964 |
| Genre | : Metallurgy |
| ISBN | : |
