ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract An oblique shock loading arrangement is utilized to dynamically consolidate small diameter solid and hollow cylinders of type 304 stainless steel and tungsten. The experimental arrangement approximates a 2-dimensional consolidation regime when viewed along any plane perpendicular to the cylinder axes. Hot spots and localized melting were observed to occur in regions characterized by interstitial or other void space prior to consolidation due to extrusion of matter into these spaces creating strain heating. The larger the void spaces, the more preponderous the melting. In consolidating hollow cylinders where the internal void area was larger than the interstitial void area, the melt preponderance shifted to the tube centers. By filling void space using solid cylinders of various diameter to approximately a 2-dimensional “particle” size distribution, void space could be minimized and local heating and melting reduced or eliminated. The melt fraction was also observed to increase with increasing peak shock pressure in the range of 12 to 22 GPa.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00638019
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