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Title: In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys

For an in situ phase transformation of the Chi (χ) phase to the Laves phase we observed in a Fe–Cr–Ni–Mo model alloy. The morphology, composition, and crystal structure of the χ and Laves phases, and their orientation relationship with the matrix austenite phase were investigated. The resulted Laves phase has larger lattice mismatch with the matrix phase than the χ phase, leading to the increase of local strain fields and the formation of dislocations. Moreover, this finding is helpful to understand the precipitation behavior of the intermetallic phases in the Mo-containing austenitic stainless steels.
Authors:
 [1] ;  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Materials Letters
Additional Journal Information:
Journal Volume: 158; Journal Issue: C; Journal ID: ISSN 0167-577X
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1185867
Alternate Identifier(s):
OSTI ID: 1358629

Tan, L., and Yang, Y.. In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys. United States: N. p., Web. doi:10.1016/j.matlet.2015.06.018.
Tan, L., & Yang, Y.. In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys. United States. doi:10.1016/j.matlet.2015.06.018.
Tan, L., and Yang, Y.. 2015. "In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys". United States. doi:10.1016/j.matlet.2015.06.018. https://www.osti.gov/servlets/purl/1185867.
@article{osti_1185867,
title = {In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys},
author = {Tan, L. and Yang, Y.},
abstractNote = {For an in situ phase transformation of the Chi (χ) phase to the Laves phase we observed in a Fe–Cr–Ni–Mo model alloy. The morphology, composition, and crystal structure of the χ and Laves phases, and their orientation relationship with the matrix austenite phase were investigated. The resulted Laves phase has larger lattice mismatch with the matrix phase than the χ phase, leading to the increase of local strain fields and the formation of dislocations. Moreover, this finding is helpful to understand the precipitation behavior of the intermetallic phases in the Mo-containing austenitic stainless steels.},
doi = {10.1016/j.matlet.2015.06.018},
journal = {Materials Letters},
number = C,
volume = 158,
place = {United States},
year = {2015},
month = {11}
}