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Analysis of subsurface microstructure and residual stresses in machined Inconel 718 with PCBN and Al2O3-SiCw tools

Zhou, Jinming LU ; Bushlya, Volodymyr LU ; Peng, Ru Lin; Chen, Zhe; Johansson, Sten and Ståhl, Jan-Eric LU (2014) 2nd CIRP Conference on Surface Integrity (CSI) In Procedia CIRP 13. p.150-155
Abstract
Subsurface microstructural alterations and residual stresses caused by machining significantly affect component lifetime and performance by influencing fatigue, creep, and stress corrosion cracking resistance. Assessing the surface quality of a machined part by characterizing subsurface microstructural alterations and residual stresses is essential for ensuring part performance and lifetime in aero-engines and power generators. This comparative study characterizes and analyzes subsurface microstructural alterations and residual stresses in Inconel 718 subjected to high-speed machining with PCBN and whisker-reinforced ceramic cutting tools. Effects of cutting tool materials and microgeometry on subsurface deformation, microstructural... (More)
Subsurface microstructural alterations and residual stresses caused by machining significantly affect component lifetime and performance by influencing fatigue, creep, and stress corrosion cracking resistance. Assessing the surface quality of a machined part by characterizing subsurface microstructural alterations and residual stresses is essential for ensuring part performance and lifetime in aero-engines and power generators. This comparative study characterizes and analyzes subsurface microstructural alterations and residual stresses in Inconel 718 subjected to high-speed machining with PCBN and whisker-reinforced ceramic cutting tools. Effects of cutting tool materials and microgeometry on subsurface deformation, microstructural alterations, and residual stresses were investigated. Surface and subsurface regions of machined specimens were investigated using X-ray diffraction, electron channeling contrast imaging, and electron back-scatter diffraction to characterize microstructural alterations and measure deformation intensity and depth. (C) 2014 The Authors. Published by Elsevier B.V. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Surface integrity, Inconel 718, residual stresses, microstructure, PCBN, Ceramics
in
Procedia CIRP
volume
13
pages
150 - 155
publisher
Elsevier
conference name
2nd CIRP Conference on Surface Integrity (CSI)
external identifiers
  • wos:000360720300026
  • scopus:84901751816
ISSN
2212-8271
DOI
10.1016/j.procir.2014.04.026
language
English
LU publication?
yes
id
7f9be6f9-0534-45c5-835a-1d426801b590 (old id 8077432)
date added to LUP
2015-10-26 12:58:11
date last changed
2017-07-02 04:06:01
@inproceedings{7f9be6f9-0534-45c5-835a-1d426801b590,
  abstract     = {Subsurface microstructural alterations and residual stresses caused by machining significantly affect component lifetime and performance by influencing fatigue, creep, and stress corrosion cracking resistance. Assessing the surface quality of a machined part by characterizing subsurface microstructural alterations and residual stresses is essential for ensuring part performance and lifetime in aero-engines and power generators. This comparative study characterizes and analyzes subsurface microstructural alterations and residual stresses in Inconel 718 subjected to high-speed machining with PCBN and whisker-reinforced ceramic cutting tools. Effects of cutting tool materials and microgeometry on subsurface deformation, microstructural alterations, and residual stresses were investigated. Surface and subsurface regions of machined specimens were investigated using X-ray diffraction, electron channeling contrast imaging, and electron back-scatter diffraction to characterize microstructural alterations and measure deformation intensity and depth. (C) 2014 The Authors. Published by Elsevier B.V.},
  author       = {Zhou, Jinming and Bushlya, Volodymyr and Peng, Ru Lin and Chen, Zhe and Johansson, Sten and Ståhl, Jan-Eric},
  booktitle    = {Procedia CIRP},
  issn         = {2212-8271},
  keyword      = {Surface integrity,Inconel 718,residual stresses,microstructure,PCBN,Ceramics},
  language     = {eng},
  pages        = {150--155},
  publisher    = {Elsevier},
  title        = {Analysis of subsurface microstructure and residual stresses in machined Inconel 718 with PCBN and Al2O3-SiCw tools},
  url          = {http://dx.doi.org/10.1016/j.procir.2014.04.026},
  volume       = {13},
  year         = {2014},
}