Dynamic strain aging effect on the fatigue resistance of type 316L stainless steel

Cited 70 time in webofscience Cited 0 time in scopus
  • Hit : 777
  • Download : 5
Mechanism of dynamic strain aging (DSA) and its effect on the high-temperature low-cycle fatigue resistance in type 316L stainless steel were investigated by carrying out low-cycle fatigue tests in a wide temperature range from 20 to 650 degrees C with strain rates of 3.2 X 10(-5)-1 X 10(-2)/s. The regime of DSA was evaluated using the anomalous features of material behavior associated with DSA. The activation energies for each type of serration were about 0.57-0.74 times those for lattice diffusion indicating that a mechanism other than lattice diffusion is involved. It is reasonably concluded that the pipe diffusion of solute atoms along the dislocation core is responsible for DSA. Dynamic strain aging reduced the fatigue resistance by ways of multiple crack initiation, which comes from the DSA-induced inhomogeneity of deformation, and rapid crack propagation due to the DSA-induced hardening. (c) 2005 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2005-10
Language
English
Article Type
Article; Proceedings Paper
Keywords

LOW-CYCLE FATIGUE; CRACK-PROPAGATION; TEMPERATURE; BEHAVIOR

Citation

INTERNATIONAL JOURNAL OF FATIGUE, v.27, pp.1420 - 1424

ISSN
0142-1123
URI
http://hdl.handle.net/10203/2954
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 70 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0