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On chemical and diffusional interactions between PCBN and superalloy Inconel 718 : Imitational experiments

Bushlya, V. LU ; Bjerke, A. LU ; Turkevich, V. Z. LU ; Lenrick, F. LU ; Petrusha, I. A. ; Cherednichenko, K. A. and Ståhl, J. E. LU (2019) In Journal of the European Ceramic Society 39(8). p.2658-2665
Abstract

During a metal cutting process, chemical wear can become the dominant mechanism of tool degradation under the high temperatures and contact pressures that arise between the tool and the metal workpiece. This study focuses on the chemical and diffusional interactions between superalloy Inconel 718 and cubic boron nitride (cBN) tool material with and without TiC binder. It covers thermodynamic modeling and experimental tests in the pressure range of 0.1 Pa to 2.5 GPa at temperatures up to 1600 °C. The methods used include diffusion couples under both vacuum and high pressure, transmission electron microscopy (TEM) analysis and in-situ synchrotron observations. It is shown that cBN is prone to diffusional dissolution in the metal and to... (More)

During a metal cutting process, chemical wear can become the dominant mechanism of tool degradation under the high temperatures and contact pressures that arise between the tool and the metal workpiece. This study focuses on the chemical and diffusional interactions between superalloy Inconel 718 and cubic boron nitride (cBN) tool material with and without TiC binder. It covers thermodynamic modeling and experimental tests in the pressure range of 0.1 Pa to 2.5 GPa at temperatures up to 1600 °C. The methods used include diffusion couples under both vacuum and high pressure, transmission electron microscopy (TEM) analysis and in-situ synchrotron observations. It is shown that cBN is prone to diffusional dissolution in the metal and to reactions with niobium, molybdenum, and chromium from Inconel 718. Adding TiC binder changes the overall degradation process because it is less susceptible to these interaction mechanisms.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Chemical wear, Diffusion couple, Diffusional wear, Inconel 718, PCBN
in
Journal of the European Ceramic Society
volume
39
issue
8
pages
2658 - 2665
publisher
Elsevier
external identifiers
  • scopus:85062675963
ISSN
0955-2219
DOI
10.1016/j.jeurceramsoc.2019.03.002
project
Flintstone2020
language
English
LU publication?
yes
id
639c6da9-7e8e-464b-b50f-e03f0ff86b8b
date added to LUP
2019-03-19 11:32:04
date last changed
2020-02-12 09:56:57
@article{639c6da9-7e8e-464b-b50f-e03f0ff86b8b,
  abstract     = {<p>During a metal cutting process, chemical wear can become the dominant mechanism of tool degradation under the high temperatures and contact pressures that arise between the tool and the metal workpiece. This study focuses on the chemical and diffusional interactions between superalloy Inconel 718 and cubic boron nitride (cBN) tool material with and without TiC binder. It covers thermodynamic modeling and experimental tests in the pressure range of 0.1 Pa to 2.5 GPa at temperatures up to 1600 °C. The methods used include diffusion couples under both vacuum and high pressure, transmission electron microscopy (TEM) analysis and in-situ synchrotron observations. It is shown that cBN is prone to diffusional dissolution in the metal and to reactions with niobium, molybdenum, and chromium from Inconel 718. Adding TiC binder changes the overall degradation process because it is less susceptible to these interaction mechanisms.</p>},
  author       = {Bushlya, V. and Bjerke, A. and Turkevich, V. Z. and Lenrick, F. and Petrusha, I. A. and Cherednichenko, K. A. and Ståhl, J. E.},
  issn         = {0955-2219},
  language     = {eng},
  number       = {8},
  pages        = {2658--2665},
  publisher    = {Elsevier},
  series       = {Journal of the European Ceramic Society},
  title        = {On chemical and diffusional interactions between PCBN and superalloy Inconel 718 : Imitational experiments},
  url          = {https://lup.lub.lu.se/search/ws/files/61959761/On_chemical_and_diffusional_interactions_between_PCBN_manuscript_submitted.pdf},
  doi          = {10.1016/j.jeurceramsoc.2019.03.002},
  volume       = {39},
  year         = {2019},
}