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  Partner: UNT Libraries Government Documents Department
 Decade: 1950-1959
 Year: 1957
 Collection: Technical Report Archive and Image Library
Abnormal grain growth in M-252 and S-816 alloys

Abnormal grain growth in M-252 and S-816 alloys

Date: November 1, 1957
Creator: Decker, R F; Rush, A I; Dano, A G & Freeman, J W
Description: An experimental investigation was carried out on air- and vacuum-melted M-252 and S-816 alloys to find conditions of heating and hot-working which resulted in abnormal grain growth. The experiments were mainly limited to normal conditions of heating for hot-working and heat treatment and normal temperatures of solution treatment were used to allow grain growth after susceptibility to abnormal grain growth was developed by various experimental conditions. Results indicated that small reductions of essentially strain-free metal were the basic cause of such grain growth.
Contributing Partner: UNT Libraries Government Documents Department
Analysis of horizontal-tail loads in pitching maneuvers on a flexible swept-wing jet bomber

Analysis of horizontal-tail loads in pitching maneuvers on a flexible swept-wing jet bomber

Date: December 1, 1957
Creator: Aiken, William S , Jr
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Three-degree-of freedom evaluation of the longitudinal transfer functions of a supersonic canard missile configuration including changes in forward speed

Three-degree-of freedom evaluation of the longitudinal transfer functions of a supersonic canard missile configuration including changes in forward speed

Date: December 1, 1957
Creator: Seaberg, Ernest C
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Appraisal of the hazards of friction-spark ignition of aircraft crash fires

Appraisal of the hazards of friction-spark ignition of aircraft crash fires

Date: May 1, 1957
Creator: Campbell, John A
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Design and experimental evaluation of a light-weight turbine-wheel assembly

Design and experimental evaluation of a light-weight turbine-wheel assembly

Date: June 1, 1957
Creator: Morgan, W C & Kemp, R H
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Abnormal grain growth in nickel-base heat-resistant alloys

Abnormal grain growth in nickel-base heat-resistant alloys

Date: December 1, 1957
Creator: Decker, R F; Rush, A I; Dano, A G & Freeman, A G
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Estimation of compressible boundary-layer growth over insulated surfaces with pressure gradient

Estimation of compressible boundary-layer growth over insulated surfaces with pressure gradient

Date: June 1, 1957
Creator: Englert, Gerald W
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Investigation of the effects of propeller diameter on the ability of a flapped wing, with and without boundary-layer control, to deflect a propeller slipstream downward for vertical take-off

Investigation of the effects of propeller diameter on the ability of a flapped wing, with and without boundary-layer control, to deflect a propeller slipstream downward for vertical take-off

Date: December 1, 1957
Creator: Spreemann, Kenneth P
Description: None
Contributing Partner: UNT Libraries Government Documents Department
A discussion of cone and flat-plate Reynolds numbers for equal ratios of the laminar shear to the shear caused by small velocity fluctuations in a laminar boundary layer

A discussion of cone and flat-plate Reynolds numbers for equal ratios of the laminar shear to the shear caused by small velocity fluctuations in a laminar boundary layer

Date: August 1, 1957
Creator: Tetervin, Neal
Description: By use of the linear theory of boundary-layer stability and Schlichting's formula for the maximum amplification of a disturbance, an approximate relation is derived between the Reynolds number on a cone and the Reynolds number on a flat plate for equal closeness to transition. The indication is that the ratio of the cone Reynolds number for transition, based on the distance to the cone apex, to the plate Reynolds number for transition, based on the distance to the leading edge, is not in general equal to 3, as has been suggested by other investigators, but varies from 3 when transition occurs at the minimum critical Reynolds number to unity when transition occurs at a large multiple of the critical Reynolds number.
Contributing Partner: UNT Libraries Government Documents Department
Screen-type noise reduction devices for ground running of turbojet engines

Screen-type noise reduction devices for ground running of turbojet engines

Date: July 1, 1957
Creator: Coles, Willard D & North, Warren J
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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