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oai:www.ideals.illinois.edu:2142/82749 2023-07-11 col_2142_5131 col_2142_13836 com_2142_5130 com_2142_13835 com_2142_234

Yong-Qian Sun Yang, Nan 2015-09-25T20:52:49Z 2015-09-25T20:52:49Z 10000-01-01 2003 2003 TEM observations show that the slip is blocked by dislocation locking along both of the two directions in the {110} glide plane. The locking is explained by the non-planar splitting of the screw component along the three-fold line directions. HRTEM observations of the locked dislocations end-on show a compact core and rule out climb decomposition as the cause for the locking. The blocking of slip by dislocation locking along two line directions is in contrast to dislocations that are locked only along the screw orientations, and to dislocations that are not locked at all. This explains why slip is more difficult than and slips and the general absence of dislocations in NiAl crystals. An intuitive explanation for the planar core of dislocations is also given. Made available in DSpace on 2015-09-25T20:52:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3111661.pdf: 6291424 bytes, checksum: 11a21405299faeffd3331de65eac129e (MD5) Previous issue date: 2003 Embargo set by: Seth Robbins for item 84030 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 162 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2003. http://hdl.handle.net/2142/82749 (MiAaPQ)AAI3111661 eng Engineering, Materials Science The Onset and Blocking of Slip in Nickel Aluminide[001] text Materials Science and Engineering Materials Science and Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.