High temperature measurements of martensitic transformations using digital holography

Benjamin P. Thiesing, Christopher J Mann, Sebastien Dryepondt

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

During thermal cycling of nickel-aluminum-platinum (NiAlPt) and single crystal iron-chromium-nickel (FeCrNi) alloys, the structural changes associated with the martensite to austenite phase transformation were measured using dual-wavelength digital holography. Real-time in situ measurements reveal the formation of striations within the NiAlPt alloy at 70°C and the FeCrNi alloy at 520°C. The results demonstrate that digital holography is an effective technique for acquiring noncontact, high precision information of the surface evolution of alloys at high temperatures.

Original languageEnglish (US)
Pages (from-to)4426-4432
Number of pages7
JournalApplied Optics
Volume52
Issue number19
DOIs
StatePublished - Jul 1 2013

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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