DTIC ADA271009: Damping in Ferrous Shape Memory pdf

DTIC ADA271009: Damping in Ferrous Shape Memory

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The damping properties of Fe-Mn-Si, Fe-Ni-Co-Ti and Fe-Al-C alloy systems were examined by DMTA and oscillation methods. The martensite transformations and microstructures were studied and examined by TEM, resistivity, and DSC. High damping was found in FeMnSi and FeNiCoTi alloys with microstructures containing glissile inter-variant martensite interfaces, while those with sessile inter-variant martensite interfaces exhibit lower damping. The general agreement between the damping peaks and transformation temperatures further confirms the close relations between high damping and shape memory behavior

• Creator/s: Defense Technical Information Center
• Date: 8/1/1993
• Year: 1993
• Book Topics/Themes: DTIC Archive, Schetky, L M, MEMRY TECHNOLOGIES INC NORWALK CT, *DAMPING, *ALLOYS, *IRON, *MARTENSITE, TEMPERATURE, VIBRATION, ALUMINUM, NICKEL, NOISE, TRANSFORMATIONS, MANGANESE, COBALT, OSCILLATION, TITANIUM, SILICON, MICROSTRUCTURE, CARBON, NAVAL VESSELS, INTERFACES

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