On the microstructural evolution and partitioning behavior of L1(2)-structured gamma '-based Co-Ti-W alloys upon Cr and Al alloying

Cited 1 time in webofscience Cited 0 time in scopus
  • Hit : 75
  • Download : 0
We report on the effects of Cr and Al on the microstructure and elemental partitioning behavior of γ/γ′ forming Co-Ti-W-based alloys. Additions of Cr to a Co-15Ti-3W (at.%) base alloy at the expense of Ti led to a decrease in γ′ volume fraction, whereas Al additions at the expense of Co led to substantially increased γ′ volume fractions. Such alloy modifications resulted in reduced γ/γ′ lattice misfits. Using atom probe tomography, we could show that Ti and W strongly partitioned to the γ′ phase, whereas Al and Cr partitioned to γ. While Cr appeared to have only minor effects on the partitioning behavior of the other alloying elements, Al enhanced partitioning of Ti and in particular W to γ′, thus causing the observed increases in γ′ volume fraction.
Publisher
ELSEVIER SCI LTD
Issue Date
2019-01
Language
English
Article Type
Article
Citation

INTERMETALLICS, v.104, pp.97 - 102

ISSN
0966-9795
DOI
10.1016/j.intermet.2018.10.027
URI
http://hdl.handle.net/10203/248665
Appears in Collection
MS-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 1 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0