Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application

Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application

The metallurgical basis for high damping in Fe-Cr-based alloys was investigated. Two alloys similar to VACROSIL-010 were studied, with compositions of 84.7 Fe-11.44 Cr-2.91 A1 and 84.8 Fe-11.65 Cr-2.92 Mo. The strain dependence of specific damping capacity (SDC) was evaluated using a modified versio...

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Main Author: Ferguson, David Bruce.
Other Authors: Perkins, Jeffrey Arthur
Language:en_US
Published: Monterey, California. Naval Postgraduate School 2012
Online Access:http://hdl.handle.net/10945/22942
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spelling ndltd-nps.edu-oai-calhoun.nps.edu-10945-229422014-11-27T16:15:03Z Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application Ferguson, David Bruce. Perkins, Jeffrey Arthur The metallurgical basis for high damping in Fe-Cr-based alloys was investigated. Two alloys similar to VACROSIL-010 were studied, with compositions of 84.7 Fe-11.44 Cr-2.91 A1 and 84.8 Fe-11.65 Cr-2.92 Mo. The strain dependence of specific damping capacity (SDC) was evaluated using a modified version of the resonant dwell technique. Heat treatment variations were introduced by annealing in argon gas at temperatures between 950 C and 1100 C and then furnace cooling. Cantilever beam specimens were evaluated for SDC at their first three resonant modes (0-1,000 Hz) at room temperature. Changes in damping capacity were correlated with the results of tensile hysteresis testing and dilatometry. Keywords: Damping; Ship silencing; Ferritic stainless steels 2012-11-27T18:06:12Z 2012-11-27T18:06:12Z 1988 Thesis http://hdl.handle.net/10945/22942 ocm83206116 en_US Monterey, California. Naval Postgraduate School
collection NDLTD
language en_US
sources NDLTD
description The metallurgical basis for high damping in Fe-Cr-based alloys was investigated. Two alloys similar to VACROSIL-010 were studied, with compositions of 84.7 Fe-11.44 Cr-2.91 A1 and 84.8 Fe-11.65 Cr-2.92 Mo. The strain dependence of specific damping capacity (SDC) was evaluated using a modified version of the resonant dwell technique. Heat treatment variations were introduced by annealing in argon gas at temperatures between 950 C and 1100 C and then furnace cooling. Cantilever beam specimens were evaluated for SDC at their first three resonant modes (0-1,000 Hz) at room temperature. Changes in damping capacity were correlated with the results of tensile hysteresis testing and dilatometry. Keywords: Damping; Ship silencing; Ferritic stainless steels
author2 Perkins, Jeffrey Arthur
author_facet Perkins, Jeffrey Arthur
Ferguson, David Bruce.
author Ferguson, David Bruce.
spellingShingle Ferguson, David Bruce.
Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
author_sort Ferguson, David Bruce.
title Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
title_short Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
title_full Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
title_fullStr Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
title_full_unstemmed Characterization of high damping Fe-Cr-Mo and Fe-Cr-Al alloys for naval ships application
title_sort characterization of high damping fe-cr-mo and fe-cr-al alloys for naval ships application
publisher Monterey, California. Naval Postgraduate School
publishDate 2012
url http://hdl.handle.net/10945/22942
work_keys_str_mv AT fergusondavidbruce characterizationofhighdampingfecrmoandfecralalloysfornavalshipsapplication
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