Compressive behavior of 420 stainless steel after asynchronous laser processing

M. P. Sealy, H. Hadidi, L. D. Sotelo, W. L. Li, J. A. Turner, J. A. McGeough

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Cold working layers during additive manufacturing improves toughness by imparting a complex glocal integrity across pre-designed internally reinforced domains. Understanding mechanical behavior by mapping glocal integrity across these domains is difficult due to highly heterogeneous compositions formed by cyclic printing and peening. Ultrasound is proposed as a rapid, non-destructive tool to measure glocal integrity that is sensitive to heterogeneous organization of microstructure and residual stress. This work examines compressive behavior and measures glocal integrity with ultrasonic wave speed and attenuation perpendicular to the build direction after cyclically coupling laser engineered net shaping (LENS®) with laser peening on 420 stainless steel.

Original languageEnglish (US)
Pages (from-to)169-172
Number of pages4
JournalCIRP Annals
Issue number1
StatePublished - 2020


  • Additive manufacturing
  • Laser peening
  • Surface integrity

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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