Hypervelocity Impact of Additively Manufactured A356/316L Interpenetrating Phase Composites
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Date
2017
Authors
French, M.R.
Yarberry, W.A. III
Pawlowski, A.E.
Shyam, A.
Splitter, D.A.
Elliott, A.M.
Carver, J.K.
Cordero, Z.C.
Journal Title
Journal ISSN
Volume Title
Publisher
University of Texas at Austin
Abstract
We have examined the hypervelocity impact response of targets made from monolithic A356 and 316L stainless steel, 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.