Evaluation of thermal ageing activation energy of delta-ferrite in an austenitic stainless steel weld using nanopillar compression test

Cited 3 time in webofscience Cited 0 time in scopus
  • Hit : 55
  • Download : 0
Nanopillar compression tests were applied on delta-ferrites in austenitic stainless steel welds to measure the thermal ageing activation energy caused by spinodal decomposition. Welds of an austenitic stainless steel were thermally aged at 343, 375, and 400 degrees C for up to 20,000 h. To avoid the interference of surrounding austenite matrix on embrittlement measurement, austenite matrix was selectively dissolved before the nanopillar fabrication. Using the yield stress changes measured by nanopillar compression tests, the thermal ageing activation energy of delta-ferrite was estimated as 154 KJ/mol, which was compared with literature results and the reasons of discrepancy were discussed. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2020-09
Language
English
Article Type
Article
Citation

SCRIPTA MATERIALIA, v.186, pp.236 - 241

ISSN
1359-6462
DOI
10.1016/j.scriptamat.2020.05.046
URI
http://hdl.handle.net/10203/281917
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 3 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0