High temperature measurements of martensitic transformations using digital holography
| Autor: | Christopher J. Mann, Benjamin P. Thiesing, Sebastien N. Dryepondt |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Austenite
Materials science business.industry Alloy Temperature cycling engineering.material Temperature measurement Atomic and Molecular Physics and Optics Optics Phase (matter) Martensite engineering Electrical and Electronic Engineering business Engineering (miscellaneous) Single crystal Digital holography |
| Zdroj: | Applied optics. 52(19) |
| ISSN: | 1539-4522 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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