Constitutive models can fail to predict high-rate deformation behavior due to their inability to account for microstructural effects. In part, this is because of a dearth of experimental …
Q Tang, M Hassani - International Journal of Plasticity, 2024 - Elsevier
As deformation rate increases, the thermally activated dislocation glide gives way to a continuous glide of dislocations governed by their interactions with phonons. Understanding …
B Ren, J Song - Surface and Coatings Technology, 2024 - Elsevier
Over the past decade, cold spraying (CS) has become a significant additive manufacturing technology for creating metallic structures and repairing damaged components. This study …
Particle bonding is crucial to coating quality in cold spray, but it has been a challenge to accurately quantify bonding even in single particle impacts. This paper uses FIB-SEM to …
J Feng, E An, W Zhao - Journal of Applied Physics, 2024 - pubs.aip.org
Cold spray is an effective method for surface coating, which has been applied in various engineering areas. However, it is difficult to directly observe the dynamic deformation …
We propose a method using high-velocity ballistic impacts of deformable microparticles on a rigid target to assess particle strength at strain rates exceeding 10 6/s. High-speed imaging …
A Reiser, CA Schuh - arXiv preprint arXiv:2404.05601, 2024 - arxiv.org
Cold spray coatings are the sum of countless individual bonding events between single particles impacting on top of one another at high velocities. Thus, the collective behavior of …