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Tensile Properties and Fracture Toughness of 6Al-4V Titanium
Material taken from 6Al-4V titanium rocket motor cases was tested with precrack Charpy impact specimens to evaluate the following as factors affecting plane-stress crack toughness and/or chamber performance: (1) anisotropy and inhomogeneity, (2) forging practice (die, ring-roll and extrusion), (3) interstitial-element chemistry, and (4) test temperature. The material was obtained from 14 hydroburst Minuteman chambers, nine of which were premature-proof-test failures, four were successfully hydroburst chambers, and one failed after 11 proof-test cycles. Material sampling included the immediate vicinity of fracture origins in an attempt to correlate fracture toughness and chamber performance. (Author)
Tensile Properties and Fracture Toughness of 6Al-4V Titanium
Material taken from 6Al-4V titanium rocket motor cases was tested with precrack Charpy impact specimens to evaluate the following as factors affecting plane-stress crack toughness and/or chamber performance: (1) anisotropy and inhomogeneity, (2) forging practice (die, ring-roll and extrusion), (3) interstitial-element chemistry, and (4) test temperature. The material was obtained from 14 hydroburst Minuteman chambers, nine of which were premature-proof-test failures, four were successfully hydroburst chambers, and one failed after 11 proof-test cycles. Material sampling included the immediate vicinity of fracture origins in an attempt to correlate fracture toughness and chamber performance. (Author)
Tensile Properties and Fracture Toughness of 6Al-4V Titanium
C. E. Hartbower (author) / W. G. Reuter (author) / P. P. Crimmins (author)
1969
215 pages
Report
No indication
English
Iron & Iron Alloys , Structural Mechanics , Rockets , Rocket engine cases , Titanium alloys , Structural properties , Aluminum alloys , Vanadium alloys , Tensile properties , Fracture(Mechanics) , Impact tests , Combustion chambers , Toughness , Minuteman , Minuteman 2 missiles , Titanium alloy 6al 4v
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