Hypervelocity Impact of Additively Manufactured A356/316L Interpenetrating Phase Composites

Conference · Tue Aug 01 00:00:00 EDT 2017

OSTI ID:1423047

French, Matthew ^[1]; Yarberry, William ^[1]; Pawlowski, Alex  ^[2]; Shyam, Amit  ^[2]; Splitter, Derek  ^[2]; Elliott, Amy  ^[2]; Carver, Keith  ^[2]; Cordero, Zachary ^[1]

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1. Rice University
2. ORNL

We have examined the hypervelocity impact response of targets made from monolithic A356 and 316L, as well as an additively manufactured A356/316L interpenetrating phase composite. 1.9 mm diameter spherical projectiles made from 2017 aluminum were fired at velocities of 5.9-6.1 km/s, allowing for the observation of multiple types of macro- and microstructural damage within each target. The macroscopic cratering damage to the A356/316L composite resembles that of the A356, but observations of both the cross section and the microstructural damage suggest that the A356/316L composite may be more resistant to spalling than A356 shielding with the same areal density.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1423047
• Resource Relation: Conference: The 28th Annual International Solid Freeform Fabrication (SFF) Symposium – An Additive Manufacturing Conference - Austin, Texas, United States of America - 8/7/2017 12:00:00 PM-8/9/2017 8:00:00 AM
• Country of Publication: United States
• Language: English