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High temperature deformation behavior of carbon-containing FeCoCrNiMn high entropy alloy
Li, Jianbo1; Gao, Bo1; Tang, Shan2; Liu, Bin3; Liu, Yong3; Wang, Yitao1; Wang, Jiawen3
2018-05-30
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume747Pages:571-579
AbstractHigh temperature compressive deformation behaviors of a carbon-containing FeCoCrNiMn high entropy alloy (HEA) was investigated at temperatures ranging from 700 degrees C to 1000 degrees C, and strain rates from 0.001s(-1) to 1s(-1). The microstructure mainly consists of fcc solid solution. The data obtained from the flow curves was employed to develop the constitutive equation, and the apparent activation energy (Q) was determined to be 385.43 kJ/mol. The size of the dynamically recrystallized grains decreased with the increasing value of Zener-Hollomon (Z) parameter. At high Z condition, dislocation cross slip can act as the main deformation mechanism. At intermediate Z condition, dislocation cross slip accompanied by discontinuous dynamic recrystallization (dDRX) becomes the main deformation mechanisms. At low Z condition, continuous dynamic recrystallization (cDRX) becomes the dominant softening mechanism. Nano carbides can be precipitated at intermediate Z and low Z condition, which prevent grain from growing up and promote the nucleation of DRX. (C) 2018 Elsevier B.V. All rights reserved.
KeywordHigh entropy alloy Carbides Dynamic recrystallization Zener-Hollomon (Z) parameter
DOI10.1016/j.jallcom.2018.02.332
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000429175700066
PublisherELSEVIER SCIENCE SA
The Source to ArticleWOS
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Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Affiliation1.Chongqing Univ, Sch Mat Sci & Engn, Chongqing 400044, Peoples R China;
2.Dalian Univ Technol, Dept Engn Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Peoples R China;
3.Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Li, Jianbo,Gao, Bo,Tang, Shan,et al. High temperature deformation behavior of carbon-containing FeCoCrNiMn high entropy alloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,747:571-579.
APA Li, Jianbo.,Gao, Bo.,Tang, Shan.,Liu, Bin.,Liu, Yong.,...&Wang, Jiawen.(2018).High temperature deformation behavior of carbon-containing FeCoCrNiMn high entropy alloy.JOURNAL OF ALLOYS AND COMPOUNDS,747,571-579.
MLA Li, Jianbo,et al."High temperature deformation behavior of carbon-containing FeCoCrNiMn high entropy alloy".JOURNAL OF ALLOYS AND COMPOUNDS 747(2018):571-579.
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