<div class="description">
<dl><dd>"December 1998."</dd>
<dd>Thesis advisor(s): Terry R. McNelley</dd>
<dd>Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, December 1998</dd>
<dd>Includes bibliographical references (p. 49-51)</dd>
<dd>Equal-channel angular (ECA) pressing is a promising method to achieve refinement of grain size to 1.0 micrometer or less for aluminum and its alloys. Computer-aided electron backscatter diffraction (EBSD) analysis of high purity aluminum (99.99%) which had been subjected to one pass, four passes, and twelve passes through an ECA die was performed. Grain and subgrain size and boundary misorientation distributions during such large-strain deformation processing were of particular interest. A texture was present after one pressing and the boundary misorientation distribution had a peak at 5 deg - 10 deg although boundaries were present in all misorientation ranges. Fine equaixed grains were achieved after twelve passes through the ECA die, accompanied by random orientation and misorientation distributions</dd>
<dd>Mode of access: World Wide Web</dd>
<dd>System requirements: Adobe Acrobat reader</dd>
<dd>US Navy (USN) author</dd>
<dd>dk/dk cc:9116 3/4/99</dd></dl><br>Subjects:</div>
<div class="fn value">
Terhune, Shannon Derek.</div>
Internet Archive identifier