Synthesis and Characterization of Nanocrystalline and Microcrystalline High Entropy Alloys and Study of Their Corrosion Behavior

Daljeet Singh; Saurabh Aggarwal; Srinivasulu Grandhi; Ravi Rahul; S. Parida; S. R. Bakshi; Rajiv Kumar

doi:10.1007/s12666-022-02576-8

Synthesis and Characterization of Nanocrystalline and Microcrystalline High Entropy Alloys and Study of Their Corrosion Behavior

Daljeet Singh
, Saurabh Aggarwal
, Srinivasulu Grandhi
, Ravi Rahul
, S. Parida
, S. R. Bakshi
, Rajiv Kumar^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The present study is focused on the synthesis, characterization, and corrosion behavior analysis of nanocrystalline (NC) and microcrystalline (MC) non-equiatomic Al₁₅Cr₂₀Fe₃₀Mn₅Ni₃₀ and Al₁₀Cr₂₀Fe₃₅Mn₅Ni₃₀ high entropy alloys (HEAs). The milled powders (using ball milling) and the synthesized NC and MC HEAs were characterized using XRD. Further, the hardness and density of NC and MC HEAs were also determined. Finally, the electrochemical corrosion behavior of NC and MC HEAs was investigated in a 3.5% NaCl solution using a potentiostat. The nanocrystallization and composition effect on the corrosion behavior was observed. MC HEAs showed better corrosion resistance than NC HEAs. The composition with lesser Al content (Al₁₀Cr₂₀Fe₃₅Mn₅Ni₃₀) exhibited better corrosion resistance in 3.5% NaCl solution.

Original language	English
Pages (from-to)	2091-2097
Number of pages	7
Journal	Transactions of the Indian Institute of Metals
Volume	75
Issue number	8
DOIs	https://doi.org/10.1007/s12666-022-02576-8
State	Published - Aug 2022
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2022, The Indian Institute of Metals - IIM.

Keywords

Electrochemical corrosion
High entropy alloys
Nanocrystalline materials
Spark plasma sintering

ASJC Scopus subject areas

Metals and Alloys

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10.1007/s12666-022-02576-8

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@article{2282687a44dd4c9e97e4b6d8b320eea5,

title = "Synthesis and Characterization of Nanocrystalline and Microcrystalline High Entropy Alloys and Study of Their Corrosion Behavior",

abstract = "The present study is focused on the synthesis, characterization, and corrosion behavior analysis of nanocrystalline (NC) and microcrystalline (MC) non-equiatomic Al15Cr20Fe30Mn5Ni30 and Al10Cr20Fe35Mn5Ni30 high entropy alloys (HEAs). The milled powders (using ball milling) and the synthesized NC and MC HEAs were characterized using XRD. Further, the hardness and density of NC and MC HEAs were also determined. Finally, the electrochemical corrosion behavior of NC and MC HEAs was investigated in a 3.5\% NaCl solution using a potentiostat. The nanocrystallization and composition effect on the corrosion behavior was observed. MC HEAs showed better corrosion resistance than NC HEAs. The composition with lesser Al content (Al10Cr20Fe35Mn5Ni30) exhibited better corrosion resistance in 3.5\% NaCl solution.",

keywords = "Electrochemical corrosion, High entropy alloys, Nanocrystalline materials, Spark plasma sintering",

author = "Daljeet Singh and Saurabh Aggarwal and Srinivasulu Grandhi and Ravi Rahul and S. Parida and Bakshi, \{S. R.\} and Rajiv Kumar",

note = "Publisher Copyright: {\textcopyright} 2022, The Indian Institute of Metals - IIM.",

year = "2022",

month = aug,

doi = "10.1007/s12666-022-02576-8",

language = "English",

volume = "75",

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journal = "Transactions of the Indian Institute of Metals",

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TY - JOUR

T1 - Synthesis and Characterization of Nanocrystalline and Microcrystalline High Entropy Alloys and Study of Their Corrosion Behavior

AU - Singh, Daljeet

AU - Aggarwal, Saurabh

AU - Grandhi, Srinivasulu

AU - Rahul, Ravi

AU - Parida, S.

AU - Bakshi, S. R.

AU - Kumar, Rajiv

PY - 2022/8

Y1 - 2022/8

N2 - The present study is focused on the synthesis, characterization, and corrosion behavior analysis of nanocrystalline (NC) and microcrystalline (MC) non-equiatomic Al15Cr20Fe30Mn5Ni30 and Al10Cr20Fe35Mn5Ni30 high entropy alloys (HEAs). The milled powders (using ball milling) and the synthesized NC and MC HEAs were characterized using XRD. Further, the hardness and density of NC and MC HEAs were also determined. Finally, the electrochemical corrosion behavior of NC and MC HEAs was investigated in a 3.5% NaCl solution using a potentiostat. The nanocrystallization and composition effect on the corrosion behavior was observed. MC HEAs showed better corrosion resistance than NC HEAs. The composition with lesser Al content (Al10Cr20Fe35Mn5Ni30) exhibited better corrosion resistance in 3.5% NaCl solution.

AB - The present study is focused on the synthesis, characterization, and corrosion behavior analysis of nanocrystalline (NC) and microcrystalline (MC) non-equiatomic Al15Cr20Fe30Mn5Ni30 and Al10Cr20Fe35Mn5Ni30 high entropy alloys (HEAs). The milled powders (using ball milling) and the synthesized NC and MC HEAs were characterized using XRD. Further, the hardness and density of NC and MC HEAs were also determined. Finally, the electrochemical corrosion behavior of NC and MC HEAs was investigated in a 3.5% NaCl solution using a potentiostat. The nanocrystallization and composition effect on the corrosion behavior was observed. MC HEAs showed better corrosion resistance than NC HEAs. The composition with lesser Al content (Al10Cr20Fe35Mn5Ni30) exhibited better corrosion resistance in 3.5% NaCl solution.

KW - Electrochemical corrosion

KW - High entropy alloys

KW - Nanocrystalline materials

KW - Spark plasma sintering

UR - https://www.scopus.com/pages/publications/85127560466

U2 - 10.1007/s12666-022-02576-8

DO - 10.1007/s12666-022-02576-8

M3 - Article

AN - SCOPUS:85127560466

SN - 0972-2815

VL - 75

SP - 2091

EP - 2097

JO - Transactions of the Indian Institute of Metals

JF - Transactions of the Indian Institute of Metals

IS - 8

ER -

Synthesis and Characterization of Nanocrystalline and Microcrystalline High Entropy Alloys and Study of Their Corrosion Behavior

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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