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Title: Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy

Abstract

The microstructures of a hierarchical-precipitate-strengthened ferritic alloy are characterized, using transmission-electron microscopy (TEM) and atom-probe tomography (APT). The alloy shows duplex precipitates. The primary precipitate with an average edge length of 90 nm consists of NiAl- and Ni2TiAl-type phases, while the secondary precipitate with an average radius of 2 nm is a NiAl-type phase. Based on the APT results, the volume fractions of the primary and secondary precipitates were calculated, using the lever rule to be 17.3 and 2.3 %, respectively.

Authors:
 [1];  [1];  [2];  [3];  [3];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Tohoku Univ., Sendai (Japan)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC); USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1394433
Alternate Identifier(s):
OSTI ID: 1416039
Grant/Contract Number:  
AC05-00OR22725; 09NT0008089; FE0005868; FE-0011194; FE-0024054
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 706; Journal Issue: C; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Atom probe tomography; Ferritic steels; Heusler phases; Precipitation; Transmission electron microscopy (TEM)

Citation Formats

Song, Gian, Sun, Zhiqian, Poplawsky, Jonathan D., Xu, Xiandong, Chen, Mingwei, and Liaw, Peter K. Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy. United States: N. p., 2017. Web. doi:10.1016/j.jallcom.2017.02.271.
Song, Gian, Sun, Zhiqian, Poplawsky, Jonathan D., Xu, Xiandong, Chen, Mingwei, & Liaw, Peter K. Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy. United States. doi:10.1016/j.jallcom.2017.02.271.
Song, Gian, Sun, Zhiqian, Poplawsky, Jonathan D., Xu, Xiandong, Chen, Mingwei, and Liaw, Peter K. Mon . "Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy". United States. doi:10.1016/j.jallcom.2017.02.271. https://www.osti.gov/servlets/purl/1394433.
@article{osti_1394433,
title = {Primary and secondary precipitates in a hierarchical-precipitate-strengthened ferritic alloy},
author = {Song, Gian and Sun, Zhiqian and Poplawsky, Jonathan D. and Xu, Xiandong and Chen, Mingwei and Liaw, Peter K.},
abstractNote = {The microstructures of a hierarchical-precipitate-strengthened ferritic alloy are characterized, using transmission-electron microscopy (TEM) and atom-probe tomography (APT). The alloy shows duplex precipitates. The primary precipitate with an average edge length of 90 nm consists of NiAl- and Ni2TiAl-type phases, while the secondary precipitate with an average radius of 2 nm is a NiAl-type phase. Based on the APT results, the volume fractions of the primary and secondary precipitates were calculated, using the lever rule to be 17.3 and 2.3 %, respectively.},
doi = {10.1016/j.jallcom.2017.02.271},
journal = {Journal of Alloys and Compounds},
issn = {0925-8388},
number = C,
volume = 706,
place = {United States},
year = {2017},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 5 works
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