Zobrazeno 1 - 10
of 42
pro vyhledávání: '"J. C. Gibeling"'
Autor:
J. C. Gibeling, M. Zhang
Publikováno v:
Scripta Materialia. 190:131-135
Stress reduction creep tests conducted on a Cu-Cr-Nb alloy (GRCop-84) at 923 K have confirmed local dislocation climb to be the rate-controlling deformation mechanism. The activation energy of creep was measured to be consistent with that of self-dif
Publikováno v:
Acta Materialia. 196:384-395
An improved model based on thermally activated dislocation glide is proposed to describe the dislocation detachment-controlled creep of extruded and annealed GlidCop Al-15 and extruded GlidCop Al-60 at 973 K as well as the threshold behavior observed
Publikováno v:
Materials Science and Engineering: A. 756:538-544
Steady-state creep behavior of rolled Cu-8Cr-4Nb (GRCop-84) production sheet was systematically studied at temperatures from 673 to 1073 K (0.50–0.79 Tm). Threshold behavior was observed at high temperatures and low stresses which can be phenomenol
Publikováno v:
Acta Materialia. 218:117181
Stress reduction creep experiments were performed on a CrMnFeCoNi high-entropy alloy at 1073 K to characterize the steady-state and transient creep properties of this material. From measurements of constant-structure creep, the activation area for de
Publikováno v:
Scripta Materialia. 194:113633
Tensile creep tests were performed on a CrMnFeCoNi high-entropy alloy at temperatures from 1023 K to 1173 K. A uniform stress exponent 3.7 ± 0.1 was found across all temperatures. The apparent activation energies of creep under various applied stres
Publikováno v:
Materials Science and Engineering: A. 805:140796
Creep experiments on a rapidly solidified Al-8.5 wt% Fe-1.3 wt% V-1.7 wt% Si alloy (FVS0812) suggest that it exhibits similar or superior deformation resistance compared to other high temperature Al alloys. However, aging at 798 K for 200 h resulted
Publikováno v:
Materials Science and Engineering: A. 779:139112
The steady-state creep behavior of annealed GlidCop Al-15 (100 h, 1273 K) was studied at 973 K and compared to the extruded version. The Rosler-Arzt model applies well to both extruded and annealed alloys, suggesting the major deformation mechanism t
Publikováno v:
Materials Science and Engineering: A. 527:6956-6962
Previous work has shown that rolling of an extruded Cu–8Cr–4Nb (GRCop-84) alloy results in higher steady-state creep rates over a range of stresses, leading to concern that other post-processing methods could have substantial deleterious effects
Autor:
Theresa C. O’Brien, Teresa L. Dillinger, Janice N. Morand, Bill Lindstaedt, Michelle E. Naffziger-Hirsch, Bruce Moses, Alexandra M. Schnoes, Richard McGee, J. C. Gibeling, Keith R. Yamamoto, Anne E. Caliendo
Publikováno v:
CBE Life Sciences Education
CBE life sciences education, vol 17, iss 1
CBE life sciences education, vol 17, iss 1
An internship program model that supports life sciences doctoral students’ pursuit of a broad range of careers is described. Evaluation of the program model at two institutions finds that participation increases students’ confidence in career dec
Autor:
Rachel Entwistle, Robert F. Bigley, Scott J. Hazelwood, Susan M. Stover, Sara Sammons, David P. Fyhrie, J. C. Gibeling
Publikováno v:
Journal of Orthopaedic Research. 27:1272-1279
Stress fractures are overuse injuries of bone that affect elite athletes and military recruits. One response of cortical bone to stress fracture is to lay down periosteal callus. The objectives of this study were to determine if material properties a