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Title: Influence of compositional complexity on interdiffusion in Ni-containing concentrated solid-solution alloys

Abstract

To investigate the compositional effects on thermal-diffusion kinetics in concentrated solid-solution alloys, interdiffusion in seven diffusion couples with alloys from binary to quinary is systematically studied. The alloys with higher compositional complexity exhibit in general lower diffusion coefficients against homologous temperature, however, an exception is found that diffusion in NiCoFeCrPd is faster than in NiCoFeCr and NiCoCr. While the derived diffusion parameters suggest that diffusion in medium and high entropy alloys is overall more retarded than in pure metals and binary alloys, they strongly depend on specific constituents. The comparative features are captured by computational thermodynamics approaches using a self-consistent database.

Authors:
 [1];  [2];  [2]; ORCiD logo [1]
  1. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
  2. CompuTherm LLC, Middleton, WI, USA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1483309
Alternate Identifier(s):
OSTI ID: 1424448
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Name: Materials Research Letters Journal Volume: 6 Journal Issue: 5; Journal ID: ISSN 2166-3831
Publisher:
Informa UK Limited
Country of Publication:
United Kingdom
Language:
English
Subject:
36 MATERIALS SCIENCE; high entropy alloy; concentrated solid-solution alloy; diffusion; CALPHAD

Citation Formats

Jin, Ke, Zhang, Chuan, Zhang, Fan, and Bei, Hongbin. Influence of compositional complexity on interdiffusion in Ni-containing concentrated solid-solution alloys. United Kingdom: N. p., 2018. Web. doi:10.1080/21663831.2018.1446466.
Jin, Ke, Zhang, Chuan, Zhang, Fan, & Bei, Hongbin. Influence of compositional complexity on interdiffusion in Ni-containing concentrated solid-solution alloys. United Kingdom. doi:10.1080/21663831.2018.1446466.
Jin, Ke, Zhang, Chuan, Zhang, Fan, and Bei, Hongbin. Wed . "Influence of compositional complexity on interdiffusion in Ni-containing concentrated solid-solution alloys". United Kingdom. doi:10.1080/21663831.2018.1446466.
@article{osti_1483309,
title = {Influence of compositional complexity on interdiffusion in Ni-containing concentrated solid-solution alloys},
author = {Jin, Ke and Zhang, Chuan and Zhang, Fan and Bei, Hongbin},
abstractNote = {To investigate the compositional effects on thermal-diffusion kinetics in concentrated solid-solution alloys, interdiffusion in seven diffusion couples with alloys from binary to quinary is systematically studied. The alloys with higher compositional complexity exhibit in general lower diffusion coefficients against homologous temperature, however, an exception is found that diffusion in NiCoFeCrPd is faster than in NiCoFeCr and NiCoCr. While the derived diffusion parameters suggest that diffusion in medium and high entropy alloys is overall more retarded than in pure metals and binary alloys, they strongly depend on specific constituents. The comparative features are captured by computational thermodynamics approaches using a self-consistent database.},
doi = {10.1080/21663831.2018.1446466},
journal = {Materials Research Letters},
number = 5,
volume = 6,
place = {United Kingdom},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1080/21663831.2018.1446466

Citation Metrics:
Cited by: 6 works
Citation information provided by
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