Laser Cladding of NiCrMoFeNbTa Particles on Inconel 625 Alloy: Microstructure and Corrosion Resistance

N. Jeyaprakash; Che Hua Yang; P. Susila; Sundara Subramanian Karuppasamy

doi:10.1007/s12666-022-02701-7

Laser Cladding of NiCrMoFeNbTa Particles on Inconel 625 Alloy: Microstructure and Corrosion Resistance

N. Jeyaprakash^*
, Che Hua Yang
, P. Susila^*
, Sundara Subramanian Karuppasamy

^*Corresponding author for this work

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

18 Scopus citations

Abstract

The objective of this study is to analyse the anti-corrosion characteristics of NiCrMoFeNbTa powder particles cladded on the Inconel 625 alloy. The microstructure and hardness of the NiCrMoFeNbTa cladded layer were evaluated by means of FESEM and nanoindentation techniques. At various time intervals (0, 18, 42 and 70 h), the anti-corrosion behaviour was investigated on IN 625 substrate and cladded specimens. In addition, the average surface roughness (Ra) value was obtained for the substrate and clad specimens to interrogate their resistant behaviour. The FESEM results proved the presence of cellular structure with interdendritic phases in the cladded region, and these phases improved the hardness at the clad layer compared to the substrate. The passive film formed on the NiCrMoFeNbTa cladded layer was reported to be compact and stable which resisted corrosion to a greater extent than the IN 625 substrate samples. On comparing the substrate and cladded samples, the unexposed clad specimen provided maximum corrosion resistance in terms of lower current density, higher polarization resistance and lower surface roughness values.

Original language	English
Pages (from-to)	599-612
Number of pages	14
Journal	Transactions of the Indian Institute of Metals
Volume	76
Issue number	2
DOIs	https://doi.org/10.1007/s12666-022-02701-7
State	Published - 02 2023
Externally published	Yes

Bibliographical note

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

Keywords

Corrosion
EIS analysis
Inconel 625 cladding
Microstructure
Nanohardness
Surface roughness (Ra)

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10.1007/s12666-022-02701-7

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title = "Laser Cladding of NiCrMoFeNbTa Particles on Inconel 625 Alloy: Microstructure and Corrosion Resistance",

abstract = "The objective of this study is to analyse the anti-corrosion characteristics of NiCrMoFeNbTa powder particles cladded on the Inconel 625 alloy. The microstructure and hardness of the NiCrMoFeNbTa cladded layer were evaluated by means of FESEM and nanoindentation techniques. At various time intervals (0, 18, 42 and 70 h), the anti-corrosion behaviour was investigated on IN 625 substrate and cladded specimens. In addition, the average surface roughness (Ra) value was obtained for the substrate and clad specimens to interrogate their resistant behaviour. The FESEM results proved the presence of cellular structure with interdendritic phases in the cladded region, and these phases improved the hardness at the clad layer compared to the substrate. The passive film formed on the NiCrMoFeNbTa cladded layer was reported to be compact and stable which resisted corrosion to a greater extent than the IN 625 substrate samples. On comparing the substrate and cladded samples, the unexposed clad specimen provided maximum corrosion resistance in terms of lower current density, higher polarization resistance and lower surface roughness values.",

keywords = "Corrosion, EIS analysis, Inconel 625 cladding, Microstructure, Nanohardness, Surface roughness (Ra)",

author = "N. Jeyaprakash and Yang, \{Che Hua\} and P. Susila and Karuppasamy, \{Sundara Subramanian\}",

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

year = "2023",

month = feb,

doi = "10.1007/s12666-022-02701-7",

language = "英语",

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TY - JOUR

T1 - Laser Cladding of NiCrMoFeNbTa Particles on Inconel 625 Alloy

T2 - Microstructure and Corrosion Resistance

AU - Jeyaprakash, N.

AU - Yang, Che Hua

AU - Susila, P.

AU - Karuppasamy, Sundara Subramanian

PY - 2023/2

Y1 - 2023/2

N2 - The objective of this study is to analyse the anti-corrosion characteristics of NiCrMoFeNbTa powder particles cladded on the Inconel 625 alloy. The microstructure and hardness of the NiCrMoFeNbTa cladded layer were evaluated by means of FESEM and nanoindentation techniques. At various time intervals (0, 18, 42 and 70 h), the anti-corrosion behaviour was investigated on IN 625 substrate and cladded specimens. In addition, the average surface roughness (Ra) value was obtained for the substrate and clad specimens to interrogate their resistant behaviour. The FESEM results proved the presence of cellular structure with interdendritic phases in the cladded region, and these phases improved the hardness at the clad layer compared to the substrate. The passive film formed on the NiCrMoFeNbTa cladded layer was reported to be compact and stable which resisted corrosion to a greater extent than the IN 625 substrate samples. On comparing the substrate and cladded samples, the unexposed clad specimen provided maximum corrosion resistance in terms of lower current density, higher polarization resistance and lower surface roughness values.

AB - The objective of this study is to analyse the anti-corrosion characteristics of NiCrMoFeNbTa powder particles cladded on the Inconel 625 alloy. The microstructure and hardness of the NiCrMoFeNbTa cladded layer were evaluated by means of FESEM and nanoindentation techniques. At various time intervals (0, 18, 42 and 70 h), the anti-corrosion behaviour was investigated on IN 625 substrate and cladded specimens. In addition, the average surface roughness (Ra) value was obtained for the substrate and clad specimens to interrogate their resistant behaviour. The FESEM results proved the presence of cellular structure with interdendritic phases in the cladded region, and these phases improved the hardness at the clad layer compared to the substrate. The passive film formed on the NiCrMoFeNbTa cladded layer was reported to be compact and stable which resisted corrosion to a greater extent than the IN 625 substrate samples. On comparing the substrate and cladded samples, the unexposed clad specimen provided maximum corrosion resistance in terms of lower current density, higher polarization resistance and lower surface roughness values.

KW - Corrosion

KW - EIS analysis

KW - Inconel 625 cladding

KW - Microstructure

KW - Nanohardness

KW - Surface roughness (Ra)

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U2 - 10.1007/s12666-022-02701-7

DO - 10.1007/s12666-022-02701-7

M3 - 文章

AN - SCOPUS:85141180872

SN - 0972-2815

VL - 76

SP - 599

EP - 612

JO - Transactions of the Indian Institute of Metals

JF - Transactions of the Indian Institute of Metals

IS - 2

ER -

Laser Cladding of NiCrMoFeNbTa Particles on Inconel 625 Alloy: Microstructure and Corrosion Resistance

Abstract

Bibliographical note

Keywords

UN SDGs

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