Tunning the tensile deformation behavior and mechanism of nickel-based superalloy CM247LC by adjusting ageing treatment

Gao, Zhenhuan; Zhang, Peng; Li, Jiao; Gong, Xiufang; Yuan, Yong; Song, Xiaolong

doi:10.1080/21663831.2023.2276340

Cited by 4 publications

(1 citation statement)

References 54 publications

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“…To achieve a compromise between strength and plasticity, they have put forth a novel approach for heat treatment design. Upon increase in ageing temperature, the modifications to the deformation mechanism result in an increase in the rate of work-hardening and tensile plasticity [31].…”

Section: Introductionmentioning

confidence: 99%

Microstructural Characteristics, Hardness and Tribological Behavior of Additive Manufactured CM247LC Nickel Super Alloy

Palanisamy,

Raman,

Olubambi

2024

Engineering Headway

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Nickel superalloys are being used in applications subjected due to its excellent creep and oxidation behavior. The CM247LC nickel based super alloy is considered due to its exceptional combination of high-temperature strength, creep resistance, oxidation/corrosion resistance, and mechanical properties suitable for applications, particularly in the aerospace industry. Though, unfavorable tribological behavior is primary challenge in gas turbine applications. Nickel-based superalloy CM-247LC was manufactured through laser powder bed fusion process under two different conditions. X-ray diffraction analysis (XRD) was carried out to study phases present in as built CM247LC alloy. Microhardness and tribological characteristics were investigated on the as built alloy. XRD spectrum was predominantly observed with γ and γ′ peaks. Presence of γ′ and MC carbides offered strengthening to the as built CM247LC alloy which enhanced the hardness and tribological properties. The wear rate of samples gets increased with increase in load applied during the wear test. Worn out surfaces were examined and it is observed that the predominant type of wear mechanisms as adhesion and abrasion.

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Section: Introductionmentioning

confidence: 99%

Microstructural Characteristics, Hardness and Tribological Behavior of Additive Manufactured CM247LC Nickel Super Alloy

Palanisamy,

Raman,

Olubambi

2024

Engineering Headway

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Influence of microstructural and loading direction on the ductility and anisotropy of Ni-based superalloys

Zhang,

Chen

et al. 2024

Materials & Design

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

Palanisamy,

Raman,

Olubambi

2024

E3S Web Conf.

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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.

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Tunning the tensile deformation behavior and mechanism of nickel-based superalloy CM247LC by adjusting ageing treatment

Cited by 4 publications

References 54 publications

Microstructural Characteristics, Hardness and Tribological Behavior of Additive Manufactured CM247LC Nickel Super Alloy

Microstructural Characteristics, Hardness and Tribological Behavior of Additive Manufactured CM247LC Nickel Super Alloy

Influence of microstructural and loading direction on the ductility and anisotropy of Ni-based superalloys

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

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