Evaluation of thermal aging of delta-ferrite in austenitic stainless steel weld using nanopillar compression test

Cited 5 time in webofscience Cited 0 time in scopus
  • Hit : 265
  • Download : 0
The effects of thermal aging on microstructure and mechanical property change of delta-ferrite in an austenitic stainless steel weld were investigated. After thermal aging at 400 degrees C for 20,000 h, spinodal decomposition and G phase precipitation were observed, along with similar to 80% increase in yield strength measured by nanopillar compression test. Subsequent reversion heat treatment removed spinodal decomposition while leaving G phase, resulting in partial recovery of hardening in delta-ferrite. It was estimated that similar to 60% of the hardening in the delta-ferrite of the aged specimen was attributed to spinodal decomposition and similar to 40% to G phase, respectively. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2018-10
Language
English
Article Type
Article
Keywords

TRANSMISSION ELECTRON-MICROSCOPY; G-PHASE PRECIPITATION; MECHANICAL PROPERTY; LOW-TEMPERATURE; MICROSTRUCTURE EVOLUTION; SPINODAL DECOMPOSITION; FE-CR; EMBRITTLEMENT; BEHAVIOR; RECOVERY

Citation

SCRIPTA MATERIALIA, v.155, pp.32 - 36

ISSN
1359-6462
DOI
10.1016/j.scriptamat.2018.06.016
URI
http://hdl.handle.net/10203/245384
Appears in Collection
NE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 5 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0