A Study on Drilling Machinability of γ-TiAl Alloy

Intermetallic γ-TiAl alloy has excellent properties at high temperatures and is thus attracting attention as a substitute for nickel-based superalloy parts for turbine engines. However, γ-TiAl alloy is reported to be a difficult material to be machined due to its low ductility at room temperature, t...

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Main Authors: Hyunseok Yang, Woo-Chul Jung, Man-Sik Kong, Changhee Lee
Format: Article
Language:English
Published: Polish Academy of Sciences 2021-12-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/119276/PDF/AMM-2021-4-05-Man-Sik%20Kong.pdf
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author Hyunseok Yang
Woo-Chul Jung
Man-Sik Kong
Changhee Lee
author_facet Hyunseok Yang
Woo-Chul Jung
Man-Sik Kong
Changhee Lee
author_sort Hyunseok Yang
collection DOAJ
description Intermetallic γ-TiAl alloy has excellent properties at high temperatures and is thus attracting attention as a substitute for nickel-based superalloy parts for turbine engines. However, γ-TiAl alloy is reported to be a difficult material to be machined due to its low ductility at room temperature, tensile strength, and thermal conductivity. In this study, a system capable of measuring thrust force (Tf) and torque (Tc) during the drilling process was constructed, and drilling processability according to the heat treated microstructure of γ-TiAl alloy was compared. As a result, it was confirmed that the thrust and torque of the γ-TiAl alloy having a microstructure in which the grains were refined by the heat treatment process was relatively low and rapidly stabilized, which is advantageous for drilling.
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spelling doaj.art-454a587691424c509b25ada197b592c02022-12-22T04:00:27ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092021-12-01vol. 66No 4951954https://doi.org/10.24425/amm.2021.136403A Study on Drilling Machinability of γ-TiAl AlloyHyunseok Yang0https://orcid.org/0000-0002-8132-0609Woo-Chul Jung1https://orcid.org/0000-0002-8543-8006Man-Sik Kong2Changhee Lee3Advanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South KoreaAdvanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South KoreaAdvanced Materials & Processing Center, Institute for Advanced Engineering, Yongin, South KoreaHanyang University, Division of Materials Science and Engineering, Seoul, South KoreaIntermetallic γ-TiAl alloy has excellent properties at high temperatures and is thus attracting attention as a substitute for nickel-based superalloy parts for turbine engines. However, γ-TiAl alloy is reported to be a difficult material to be machined due to its low ductility at room temperature, tensile strength, and thermal conductivity. In this study, a system capable of measuring thrust force (Tf) and torque (Tc) during the drilling process was constructed, and drilling processability according to the heat treated microstructure of γ-TiAl alloy was compared. As a result, it was confirmed that the thrust and torque of the γ-TiAl alloy having a microstructure in which the grains were refined by the heat treatment process was relatively low and rapidly stabilized, which is advantageous for drilling.https://journals.pan.pl/Content/119276/PDF/AMM-2021-4-05-Man-Sik%20Kong.pdfγ-tial alloydrillingmachinabilitythrusttorque
spellingShingle Hyunseok Yang
Woo-Chul Jung
Man-Sik Kong
Changhee Lee
A Study on Drilling Machinability of γ-TiAl Alloy
Archives of Metallurgy and Materials
γ-tial alloy
drilling
machinability
thrust
torque
title A Study on Drilling Machinability of γ-TiAl Alloy
title_full A Study on Drilling Machinability of γ-TiAl Alloy
title_fullStr A Study on Drilling Machinability of γ-TiAl Alloy
title_full_unstemmed A Study on Drilling Machinability of γ-TiAl Alloy
title_short A Study on Drilling Machinability of γ-TiAl Alloy
title_sort study on drilling machinability of γ tial alloy
topic γ-tial alloy
drilling
machinability
thrust
torque
url https://journals.pan.pl/Content/119276/PDF/AMM-2021-4-05-Man-Sik%20Kong.pdf
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AT changheelee astudyondrillingmachinabilityofgtialalloy
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