Author: Herbert W. MishlerPublisher:
ISBN:
Category : Steel
Languages : en
Pages : 106
Book Description
Welding of High-strength Steels for Aircraft and Missile Applications
Author: Herbert W. MishlerPublisher:
ISBN:
Category : Steel
Languages : en
Pages : 106
Book Description
Heat Treatment of High-strength Steels for Airframe Applications
Author: Robert John FiorentinoPublisher:
ISBN:
Category : Decarburization of steel
Languages : en
Pages : 122
Book Description
Properties of Coated Refractory Metals
Author: W. A. GibeautPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 104
Book Description
This report summarizes the information generated since the middle of 1961 on the chemical, physical, and mechanical properties of refractory metals that are coated with oxidation-resistant coatings of advanced-experimental or commercial status. It is a supplement to DMIC Report 162, Coatings for the Protection of Refractory Metals from Oxidation, dated November 24, 1961. Recent data on specific silicide- and aluminide- type coatings for columbium, molybdenum, tantalum, and tungsten and their alloys reflect general advances in coating quality and performance, understanding of the behavior of coated systems, and more complete realization of the problems associated with the use of coated hardware.
Department of Defense Refractory Metals Sheet-rolling Program
Author: H. R. OgdenPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 44
Book Description
A summary is presented of the status of the Department of Defense Refractory Metals SheetRolling Program to accelerate the development of production techniques for high-quality, consistent sheet products from the refractory metals (Nb, Mo, Ta, and W) and their alloys. The program includes: (1) development of sheet production techniques, (2) establishment of minimum data re uired to evaluate mill production, (3) evaluation of fabrication characteristics of the sheet produced, and (4) establishment of design data. Contracts were awarded for the development of sheet production techniques for all four refractory metals. One contract was awarded for the evaluation of Mo alloy sheet fabrication characteristics. (Author).
Coatings for the Protection of Refractory Metals from Oxidation
Author: Carol Alnoth KrierPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 248
Book Description
A Summary of the Theory of Fracture in Metals
Author: J. W. SpretnakPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 70
Book Description
Status Report No. 2 on Department of Defense Refractory Metals Sheet-rolling Program
Author: H. R. OgdenPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 54
Book Description
The Nb program is nearing completion of laboratory tory rolling studiory materials, *Heat resistant alloys, *Sheets, Niobium alloys, Molybdenum alloys, Tantalum alloys, Tungsten alloys, Titanium alloys, Zirconium alloys, Tungsten, Powder metallurgy, Electric arcs, Manufacturing methods, Mechanical proper ies, Forging, Heat treatment, Melting, Extrusion, Deformation, Hardness, Rolling mills, Processing. Identifiers: Floturning. The Nb program is nearing completion of laboratory tory rolling studies, and a single composition for larger scale rolling studies will be selected in the near future. In the Mo program, it has been shown that true hot forging of billets to sheet bar results in higher recrystallization temperatures of TZM and Mo-0.5Ti sheet than are obtained when normal forging temperatures are used. The Ta program is in the early stages of ingot production and primary breakdown fabrication of the Ta-30Nb-7.5V alloy. Three methods of fabricating W sheet are being investigated: rolling of powder-metallurgy billets, fabrication of arc-melted ingots, and floturning of cylindrical blanks. Properties obtained on both powdermetallurgy and arc-melted tungsten sheet compare very favorably. Evaluation of the formability of Mo-alloy sheet has been delayed until sheet is available from the production program. (Author).
Design Considerations in Selecting Materials for Large Solid-propellant Rocket-motor Cases
Author: Charles Wesley BertPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 80
Book Description
The Effect of Nuclear Radiation on Structural Metals
Author: Frederic R. ShoberPublisher:
ISBN:
Category : Metals
Languages : en
Pages : 120
Book Description
The effect of fast-neutron (>1 Mev) irradiation on the mechanical properties of structural metals and alloys was studied. Although the yield strengths and ultimate tensile strengths are increased su stantially for most materials, the ductility suffers severe decreases. This report presents these changes in properties of several structural metals for a number of neutron exposures within the 1.0 x 10 to the 18th power to 5.0 x 10 to the 21st power n/sq cm range. Data summarizing these effects on several classes of materials such as carbon steels, low-alloy steels, stainless steels, Zr-base alloys, ni-base alloys, Al-base alloys, and Ta are given. Additional data which show the influence f irradiation temperatures and of post-irradiation annealing on the radiation-induced property changes are also given and discussed. Increases as great as 175% in yield strength, 100% in ultimate strength, and decreases of 80% in total elongation are reported for fast-neutron exposures as great as 5 10 to the 21st power n/sq cm. (Author).
Strain Aging of Refractory Metals
Author: A. G. ImgramPublisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 68
Book Description