Accession Number : ADA219572


Title :   The Microstructural Basis of Damping in High Damping Alloys


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Rappeline, Peter F


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a219572.pdf


Report Date : Sep 1989


Pagination or Media Count : 66


Abstract : The microstructural mechanisms responsible for material damping are analyzed, with emphasis on those mechanisms responsible for the behavior in high damping alloys. A Cu-Al-Ni alloy is metallurgically characterized using transmission electron microscopy and differential scanning calorimetry. The microstructural characterization of the Cu-Mn alloy INCRAMUTE is refined using high resolution transmission electron microscopy and high resolution energy- dispersive x-ray spectroscopy. A qualitative theory for the strain dependence of damping capacity is given. Keywords: Theses; Stress strain relations; Vibration.


Descriptors :   *ALLOYS , *DAMPING , *MICROSTRUCTURE , *MOLECULAR STRUCTURE , CALORIMETRY , CAPACITY(QUANTITY) , ELECTRON MICROSCOPY , MATERIALS , MOLECULE MOLECULE INTERACTIONS , SCANNING , STRESS STRAIN RELATIONS , THEORY , THESES , TRANSMITTANCE , VIBRATION


Subject Categories : Properties of Metals and Alloys
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE