Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy

Chandramohan Palanisamy; Raghu Raman; Peter Apata Olubambi

doi:10.1051/e3sconf/202450501038

Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy

Chandramohan Palanisamy
, Raghu Raman
, Peter Apata Olubambi

Metallurgy

Anna University
University of Johannesburg

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10^-9 mm³/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.

Original language	English
Article number	01038
Journal	E3S Web of Conferences
Volume	505
DOIs	https://doi.org/10.1051/e3sconf/202450501038
Publication status	Published - 25 Mar 2024
Event	3rd International Conference on Applied Research and Engineering, ICARAE 2023 - Cape Town, South Africa Duration: 17 Nov 2023 → 19 Nov 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

ASJC Scopus subject areas

General Environmental Science
General Energy
General Earth and Planetary Sciences

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10.1051/e3sconf/202450501038

Cite this

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title = "Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy",

abstract = "Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.",

author = "Chandramohan Palanisamy and Raghu Raman and Olubambi, \{Peter Apata\}",

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TY - JOUR

T1 - Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy

AU - Palanisamy, Chandramohan

AU - Raman, Raghu

AU - Olubambi, Peter Apata

PY - 2024/3/25

Y1 - 2024/3/25

N2 - Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.

AB - Nickel superalloy CM247LC was fabricated by laser powder bed fusion (LPBF) and its microstructure, hardness and tribological properties were investigated. X-ray diffraction analysis showed the presence of γ, γ′ and metastable MC carbides. Microstructure revealed cellular structure with fine MC carbides at cell boundaries. Higher hardness of 408 HV was attributed to grain refinement from rapid solidification and strengthening from MC carbides. Wear testing showed lowest wear rate of 1.46x10-9 mm3/m at 10 N load and predominant wear mechanisms were abrasive and adhesive wear. This study recommends LPBF as a promising method for manufacturing CM247LC superalloy for load bearing and tribological applications.

UR - https://www.scopus.com/pages/publications/85190615471

U2 - 10.1051/e3sconf/202450501038

DO - 10.1051/e3sconf/202450501038

M3 - Conference article

AN - SCOPUS:85190615471

SN - 2555-0403

VL - 505

JO - E3S Web of Conferences

JF - E3S Web of Conferences

M1 - 01038

T2 - 3rd International Conference on Applied Research and Engineering, ICARAE 2023

Y2 - 17 November 2023 through 19 November 2023

ER -

Microstructural characteristics, hardness and tribological behavior of additive manufactured CM247LC nickel super alloy

Abstract

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