Understanding wear and interaction between CVD α-Al2O3 coated tools, steel, and non-metallic inclusions in machining
(2022) In Surface and Coatings Technology 450.- Abstract
The aluminum oxide-coating on cemented carbide tools used for metal cutting have been regarded as inert during cutting of steels. Because diffusional dissolution is not possible. Chemical degradation of aluminum oxide coatings is often overlooked, especially in the presence of ambient oxygen and non-metallic inclusions. High-pressure diffusion couples, advanced microscopy, and thermodynamics are used to investigate and predict the chemical degradation of aluminum oxide-coated tools. During interactions with steel and different combinations of inclusions with and without ambient oxygen. The results show that alumina is resistant to chemical degradation by steel in the absence of oxygen. However, this is not the case when oxygen and... (More)
The aluminum oxide-coating on cemented carbide tools used for metal cutting have been regarded as inert during cutting of steels. Because diffusional dissolution is not possible. Chemical degradation of aluminum oxide coatings is often overlooked, especially in the presence of ambient oxygen and non-metallic inclusions. High-pressure diffusion couples, advanced microscopy, and thermodynamics are used to investigate and predict the chemical degradation of aluminum oxide-coated tools. During interactions with steel and different combinations of inclusions with and without ambient oxygen. The results show that alumina is resistant to chemical degradation by steel in the absence of oxygen. However, this is not the case when oxygen and non-metallic inclusions are present. These experiments and microscopy together with the thermodynamic calculations allow for the creation of a method and guidelines for chemical wear modeling and steel inclusion engineering when machining with aluminum oxide-coated tools.
(Less)
- author
- Bjerke, Axel
LU
; Lenrick, Filip LU
; Norgren, Susanne LU ; Larsson, Henrik ; Markström, Andreas ; M'Saoubi, Rachid LU ; Petrusha, Igor and Bushlya, Volodymyr LU
- organization
- publishing date
- 2022-11
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Chemical wear, Diffusion couple, Machining, Non-metallic inclusions, α-Al2O3
- in
- Surface and Coatings Technology
- volume
- 450
- article number
- 128997
- publisher
- Elsevier
- external identifiers
-
- scopus:85140602376
- ISSN
- 0257-8972
- DOI
- 10.1016/j.surfcoat.2022.128997
- language
- English
- LU publication?
- yes
- additional info
- Funding Information: This work was funded by the national strategic innovation program known as the National Action for Metallic Materials program, organized by Vinnova and Jernkontoret (Sweden) under DEMO project (ID 2017-02915 ). The authors would like to acknowledge the support of the Sustainable Production Initiative (SPI), a cooperation between Lund University and Chalmers University of Technology. We also thank Dr. Thomas Björk from Ovako AB for support with the workpiece material and fruitful discussions. We would like to thank Ryszard Wierzbicki and Mikael Hörndahl for their help in manufacturing and assembly of the diffusion couple, and Dr. Ofentse Makgae for assistance during TEM imaging, all of Lund University. Publisher Copyright: © 2022 The Authors
- id
- 239725fa-5176-4011-93c7-fdd3f0239c25
- date added to LUP
- 2022-11-05 15:01:18
- date last changed
- 2024-03-21 14:58:04
@article{239725fa-5176-4011-93c7-fdd3f0239c25, abstract = {{<p>The aluminum oxide-coating on cemented carbide tools used for metal cutting have been regarded as inert during cutting of steels. Because diffusional dissolution is not possible. Chemical degradation of aluminum oxide coatings is often overlooked, especially in the presence of ambient oxygen and non-metallic inclusions. High-pressure diffusion couples, advanced microscopy, and thermodynamics are used to investigate and predict the chemical degradation of aluminum oxide-coated tools. During interactions with steel and different combinations of inclusions with and without ambient oxygen. The results show that alumina is resistant to chemical degradation by steel in the absence of oxygen. However, this is not the case when oxygen and non-metallic inclusions are present. These experiments and microscopy together with the thermodynamic calculations allow for the creation of a method and guidelines for chemical wear modeling and steel inclusion engineering when machining with aluminum oxide-coated tools.</p>}}, author = {{Bjerke, Axel and Lenrick, Filip and Norgren, Susanne and Larsson, Henrik and Markström, Andreas and M'Saoubi, Rachid and Petrusha, Igor and Bushlya, Volodymyr}}, issn = {{0257-8972}}, keywords = {{Chemical wear; Diffusion couple; Machining; Non-metallic inclusions; α-Al2O3}}, language = {{eng}}, publisher = {{Elsevier}}, series = {{Surface and Coatings Technology}}, title = {{Understanding wear and interaction between CVD α-Al<sub>2</sub>O<sub>3</sub> coated tools, steel, and non-metallic inclusions in machining}}, url = {{http://dx.doi.org/10.1016/j.surfcoat.2022.128997}}, doi = {{10.1016/j.surfcoat.2022.128997}}, volume = {{450}}, year = {{2022}}, }