On the influence of gamma prime upon machining of advanced nickel based superalloy

Zhirong Liao; Dragos Axinte; Maxime Mieszala; Rachid M'Saoubi; Johann Michler; Mark Hardy

doi:10.1016/j.cirp.2018.03.021

On the influence of gamma prime upon machining of advanced nickel based superalloy

Zhirong Liao, Dragos Axinte, Maxime Mieszala, Rachid M'Saoubi, Johann Michler, Mark Hardy

Department of Mechanical, Materials and Manufacturing Engineering

Research output: Journal Publication › Article › peer-review

38 Citations (Scopus)

Abstract

Whilst gamma prime (γ′) phase is the strengthening phase in Ni-based superalloys its influence on machining has been seldom investigated. This paper reports for the first time on the effect of γ′ upon machining of Ni-based superalloys when cutting with parameters yielding different cutting temperature intervals which lead to strengthening/softening effects on the workpiece (sub)surface. In-depth XRD, SEM/FIB, EBSD analysis and unique micro-pillar testing in the workpiece superficial layers indicated that with the increase of γ′ fraction the grain plastic deformation significantly decreased, while specific cutting energy can switch from low to high values influenced by the real cutting temperature.

Original language	English
Pages (from-to)	109-112
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	67
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2018.03.021
Publication status	Published - 1 Jan 2018

Keywords

Gamma prime phase
Machining
Nickel Alloy

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2018.03.021

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title = "On the influence of gamma prime upon machining of advanced nickel based superalloy",

abstract = "Whilst gamma prime (γ′) phase is the strengthening phase in Ni-based superalloys its influence on machining has been seldom investigated. This paper reports for the first time on the effect of γ′ upon machining of Ni-based superalloys when cutting with parameters yielding different cutting temperature intervals which lead to strengthening/softening effects on the workpiece (sub)surface. In-depth XRD, SEM/FIB, EBSD analysis and unique micro-pillar testing in the workpiece superficial layers indicated that with the increase of γ′ fraction the grain plastic deformation significantly decreased, while specific cutting energy can switch from low to high values influenced by the real cutting temperature.",

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AU - Liao, Zhirong

AU - Axinte, Dragos

AU - Mieszala, Maxime

AU - M'Saoubi, Rachid

AU - Michler, Johann

AU - Hardy, Mark

PY - 2018/1/1

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N2 - Whilst gamma prime (γ′) phase is the strengthening phase in Ni-based superalloys its influence on machining has been seldom investigated. This paper reports for the first time on the effect of γ′ upon machining of Ni-based superalloys when cutting with parameters yielding different cutting temperature intervals which lead to strengthening/softening effects on the workpiece (sub)surface. In-depth XRD, SEM/FIB, EBSD analysis and unique micro-pillar testing in the workpiece superficial layers indicated that with the increase of γ′ fraction the grain plastic deformation significantly decreased, while specific cutting energy can switch from low to high values influenced by the real cutting temperature.

AB - Whilst gamma prime (γ′) phase is the strengthening phase in Ni-based superalloys its influence on machining has been seldom investigated. This paper reports for the first time on the effect of γ′ upon machining of Ni-based superalloys when cutting with parameters yielding different cutting temperature intervals which lead to strengthening/softening effects on the workpiece (sub)surface. In-depth XRD, SEM/FIB, EBSD analysis and unique micro-pillar testing in the workpiece superficial layers indicated that with the increase of γ′ fraction the grain plastic deformation significantly decreased, while specific cutting energy can switch from low to high values influenced by the real cutting temperature.

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On the influence of gamma prime upon machining of advanced nickel based superalloy

Abstract

Keywords

ASJC Scopus subject areas

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