November 2023

Conference Paper

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

By:
French, Matthew; Yarberry, William; Pawlowski, Alex E; Shyam, Amit ; Splitter, Derek A; Elliott, Amelia M; Carver, James K; Cordero, Zachary
Page Number:
2341-2349
Volume:
28
Issue Number:
1
Book Title:
SFF Symposium Proceedings 2017
Publication Date:
November 9, 2023
Conference Name:
The 28th Annual International Solid Freeform Fabrication (SFF) Symposium – An Additive Manufacturing Conference
Conference Location:
Austin, Texas, United States of America
Conference Sponsor:
University of Texas, Austin

Abstract

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.

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