Residual stresses in single particle splat of metal cold spray process – Numerical simulation and direct measurement

Xu Song, Joris Everaerts, Wei Zhai, Han Zheng, Adrian Wei Yee Tan, Wen Sun, Feng Li, Iulian Marinescu, Erjia Liu, Alexander M. Korsunsky

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

This report provides the first quantitative evaluation and prediction of residual stress arising from a single particle deposition in the metal cold spray of Ti-6Al-4V. Micro-ring-core Focused Ion Beam–Digital Image Correlation (FIB-DIC) technique is employed to determine the residual stress variation experimentally, while finite element simulation with Johnson-Cook plasticity and dynamic failure model is employed to numerically predict the residual stress distribution within single particle, and they show good agreement with each other for different impact velocities. This provides a tight link between the validated description of microscopic phenomena and the ensuing macroscopic properties and processes of the deposit.

Original languageEnglish
Pages (from-to)152-156
Number of pages5
JournalMaterials Letters
Volume230
DOIs
Publication statusPublished - 1 Nov 2018
Externally publishedYes

Keywords

  • Cold spray
  • Finite element analysis
  • Powder technology
  • Residual stresses
  • Simulation and modelling

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