Surface integrity of nickel-based alloys subjected to severe plastic deformation by abusive drilling

Rachid M'Saoubi; Dragos Axinte; Christopher Herbert; Mark Hardy; Paul Salmon

doi:10.1016/j.cirp.2014.03.067

Surface integrity of nickel-based alloys subjected to severe plastic deformation by abusive drilling

Rachid M'Saoubi^*
, Dragos Axinte
, Christopher Herbert
, Mark Hardy
, Paul Salmon

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

83 Citations (Scopus)

Abstract

Surface integrity of nickel-based superalloys after machining operations has become a topic of major interest in the aerospace sector. In the present work, the characteristics of nickel-based alloys (Alloy 718, Waspaloy, Alloy 720Li, and RR1000) subjected to abusive drilling conditions have been investigated using experimental methods such as FEG-SEM, EBSD, XRD, TEM and nano-indentation. The results indicated the presence of nano-sized grains typical of severe plastic deformation in the machined surface while the presence of plastic slip bands was observed in the sub-surface layers. Correlations between the thermo-mechanical properties of the nickel-based alloys and the severe plastic deformation features of the machined surfaces are presented.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	CIRP Annals - Manufacturing Technology
Volume	63
Issue number	1
DOIs	https://doi.org/10.1016/j.cirp.2014.03.067
Publication status	Published - 2014
Externally published	Yes

Free Keywords

Drilling
Ni alloy
Surface integrity

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cirp.2014.03.067

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title = "Surface integrity of nickel-based alloys subjected to severe plastic deformation by abusive drilling",

abstract = "Surface integrity of nickel-based superalloys after machining operations has become a topic of major interest in the aerospace sector. In the present work, the characteristics of nickel-based alloys (Alloy 718, Waspaloy, Alloy 720Li, and RR1000) subjected to abusive drilling conditions have been investigated using experimental methods such as FEG-SEM, EBSD, XRD, TEM and nano-indentation. The results indicated the presence of nano-sized grains typical of severe plastic deformation in the machined surface while the presence of plastic slip bands was observed in the sub-surface layers. Correlations between the thermo-mechanical properties of the nickel-based alloys and the severe plastic deformation features of the machined surfaces are presented.",

keywords = "Drilling, Ni alloy, Surface integrity",

author = "Rachid M'Saoubi and Dragos Axinte and Christopher Herbert and Mark Hardy and Paul Salmon",

note = "Funding Information: This work was partially carried out under the sponsorship of PhD CASE award (University of Nottingham and Rolls-Royce) EPSRC–UK ( EP/H501460/1 ). The authors would like to thank M. Schwind and M. Fallqvist at Seco Tools AB for helping with acquiring the EBSD and nanohardness data, respectively. M. Abouridouane (RWTH-WZL Aachen) is also greatly acknowledged for performing the preliminary 3D FEM simulations.",

year = "2014",

doi = "10.1016/j.cirp.2014.03.067",

language = "English",

volume = "63",

pages = "61--64",

journal = "CIRP Annals - Manufacturing Technology",

issn = "0007-8506",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Surface integrity of nickel-based alloys subjected to severe plastic deformation by abusive drilling

AU - M'Saoubi, Rachid

AU - Axinte, Dragos

AU - Herbert, Christopher

AU - Hardy, Mark

AU - Salmon, Paul

N1 - Funding Information: This work was partially carried out under the sponsorship of PhD CASE award (University of Nottingham and Rolls-Royce) EPSRC–UK ( EP/H501460/1 ). The authors would like to thank M. Schwind and M. Fallqvist at Seco Tools AB for helping with acquiring the EBSD and nanohardness data, respectively. M. Abouridouane (RWTH-WZL Aachen) is also greatly acknowledged for performing the preliminary 3D FEM simulations.

PY - 2014

Y1 - 2014

N2 - Surface integrity of nickel-based superalloys after machining operations has become a topic of major interest in the aerospace sector. In the present work, the characteristics of nickel-based alloys (Alloy 718, Waspaloy, Alloy 720Li, and RR1000) subjected to abusive drilling conditions have been investigated using experimental methods such as FEG-SEM, EBSD, XRD, TEM and nano-indentation. The results indicated the presence of nano-sized grains typical of severe plastic deformation in the machined surface while the presence of plastic slip bands was observed in the sub-surface layers. Correlations between the thermo-mechanical properties of the nickel-based alloys and the severe plastic deformation features of the machined surfaces are presented.

AB - Surface integrity of nickel-based superalloys after machining operations has become a topic of major interest in the aerospace sector. In the present work, the characteristics of nickel-based alloys (Alloy 718, Waspaloy, Alloy 720Li, and RR1000) subjected to abusive drilling conditions have been investigated using experimental methods such as FEG-SEM, EBSD, XRD, TEM and nano-indentation. The results indicated the presence of nano-sized grains typical of severe plastic deformation in the machined surface while the presence of plastic slip bands was observed in the sub-surface layers. Correlations between the thermo-mechanical properties of the nickel-based alloys and the severe plastic deformation features of the machined surfaces are presented.

KW - Drilling

KW - Ni alloy

KW - Surface integrity

UR - https://www.scopus.com/pages/publications/84902543830

U2 - 10.1016/j.cirp.2014.03.067

DO - 10.1016/j.cirp.2014.03.067

M3 - Article

AN - SCOPUS:84902543830

SN - 0007-8506

VL - 63

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EP - 64

JO - CIRP Annals - Manufacturing Technology

JF - CIRP Annals - Manufacturing Technology

IS - 1

ER -

Surface integrity of nickel-based alloys subjected to severe plastic deformation by abusive drilling

Abstract

Free Keywords

ASJC Scopus subject areas

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