the development of Refractory Sheet Metal Structures

Format:

Other

Author/Creator:

Levy, Alan V., author.

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1960

Summary:

THIS PAPER REPORTS on the present state of the art in the utilization of refractory metals for air frame and powerplant sheet metal components. By far the most promising of these metals to date is molybdenum.The mechanical and physical properties of molybdenum are well-suited for high-temperature service. The combination of relatively high thermal conductivity, low thermal expansion coefficient, good specific heat, and a reasonably high emissivity of a coated surface make this material suitable for exterior surface application on severely aerodynamically heated components.However, in its usable alloyed forms, molybdenum tends to behave in a brittle manner at room temperature, suffering from a high brittle-to-ductile transition temperature. Other unacceptable properties are the presence of laminations in the material, 45-deg preferred angle cracking, and difficulty of controlling interstitial alloying elements. The authors discuss each of these and the progress made in overcoming them.*

Notes:

Vendor supplied data

Publisher Number:

600041

Access Restriction:

Restricted for use by site license