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Title: Microparticle impact-bonding modes for mismatched metals: From co-deformation to splatting and penetration

Journal Article · · Acta Materialia
 [1];  [2];  [2];  [2]; ORCiD logo [2]
  1. Cornell Univ., Ithaca, NY (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

In this paper we present a comprehensive experimental campaign of high-velocity microparticle impacts with different combinations of particle and substrate materials to identify possible deformation regimes. Based on experimental observations of the impact sites, we identify three typical modes of behavior, namely, splatting, co-deformation, and penetration. We develop a theoretical framework to predict the operative bonding regime for a given particle/substrate combination, ranging from splatting and penetration at two extremes of a spectrum, and co-deformation in the center. We propose an impact ratio based on the materials’ properties, which can successfully quantify the spectrum. Co-deformation is expected when the ratio is around unity, while much larger or smaller ratios give rise to penetration and splatting, respectively.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; US Army Research Office (ARO); US Army Research Laboratory (USARL); USDOE
Grant/Contract Number:
SC0018091; W911NF-18-2-0048; W911NF1920329
OSTI ID:
1658597
Alternate ID(s):
OSTI ID: 1668900
Journal Information:
Acta Materialia, Vol. 199; ISSN 1359-6454
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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