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Atomistic Simulation of the Explosion Welding Process
Author(s) -
Saresoja Ossi,
Kuronen Antti,
Nordlund Kai
Publication year - 2012
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201100211
Subject(s) - materials science , nanocrystalline material , welding , molecular dynamics , explosion welding , jet (fluid) , crystal (programming language) , process (computing) , mechanical engineering , metallurgy , composite material , nanotechnology , mechanics , filler metal , computational chemistry , arc welding , computer science , chemistry , physics , programming language , operating system , engineering
We study explosion welding process on the atomic level using molecular dynamics simulations. Our simulations show that jet formation—considered necessary for good bonding—is correlated with the instantaneous melting of the interface region. Moreover, we observe peeling off of material (up to 4 nm) from the bonded surfaces. Finally, the structure of the material immediately after the bonding process is observed to be nanocrystalline with crystal sizes of 10–20 nm.