Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy
In the course of wire electro-discharge machining (WEDM), the unavoidable and undesirable formation of a recast layer on titanium (Ti) alloy was observed to have taken place. As a result, subsequent processing steps are required to remove this recast layer. In order to facilitate its removal, this s...
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MDPI AG
2022-01-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/2/188 |
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| author | Animesh Basak Alokesh Pramanik Chander Prakash Subramaniam Shankar Sujan Debnath |
| author_facet | Animesh Basak Alokesh Pramanik Chander Prakash Subramaniam Shankar Sujan Debnath |
| author_sort | Animesh Basak |
| collection | DOAJ |
| description | In the course of wire electro-discharge machining (WEDM), the unavoidable and undesirable formation of a recast layer on titanium (Ti) alloy was observed to have taken place. As a result, subsequent processing steps are required to remove this recast layer. In order to facilitate its removal, this study investigates the micro-mechanical properties of the said recast layer to better understand them. To that end, micro-pillars were fabricated on a recast layer after which in situ micro-pillar compression and nanoindentation were carried out. The in situ compression technique helps visualize deformation of materials in real time with corresponding features in stress–strain curves. The recast layer exhibits relatively brittle behaviour associated with the heat-affected zone (HAZ) and base alloy. Whereas the base alloy experienced substantial work hardening as evidenced by the formation of slip/shear bands, the recast layer was found to break down under external loading without any visible strain accommodation. This understanding of the recast layers could facilitate the design of effective removal operations, saving time and money. In addition, the recast layer might be useful in some applications. |
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| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T21:26:24Z |
| publishDate | 2022-01-01 |
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| spelling | doaj.art-3e73f380e8f04808a6421c02de86e9f62023-11-23T21:06:21ZengMDPI AGMetals2075-47012022-01-0112218810.3390/met12020188Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium AlloyAnimesh Basak0Alokesh Pramanik1Chander Prakash2Subramaniam Shankar3Sujan Debnath4Adelaide Microscopy, The University of Adelaide, Adelaide, SA 5000, AustraliaSchool of Civil and Mechanical Engineering, Curtin University, Bentley, WA 6102, AustraliaSchool of Mechanical Engineering, Lovely Professional University, Phagwara 144411, IndiaDepartment of Mechatronics Engineering, Kongu Engineering College, Erode 638060, IndiaDepartment of Mechanical Engineering, Faculty of Engineering and Science, Curtin University, Miri 98009, MalaysiaIn the course of wire electro-discharge machining (WEDM), the unavoidable and undesirable formation of a recast layer on titanium (Ti) alloy was observed to have taken place. As a result, subsequent processing steps are required to remove this recast layer. In order to facilitate its removal, this study investigates the micro-mechanical properties of the said recast layer to better understand them. To that end, micro-pillars were fabricated on a recast layer after which in situ micro-pillar compression and nanoindentation were carried out. The in situ compression technique helps visualize deformation of materials in real time with corresponding features in stress–strain curves. The recast layer exhibits relatively brittle behaviour associated with the heat-affected zone (HAZ) and base alloy. Whereas the base alloy experienced substantial work hardening as evidenced by the formation of slip/shear bands, the recast layer was found to break down under external loading without any visible strain accommodation. This understanding of the recast layers could facilitate the design of effective removal operations, saving time and money. In addition, the recast layer might be useful in some applications.https://www.mdpi.com/2075-4701/12/2/188titanium alloywire electro discharge machiningrecast layermicro-pillardeformationcompression |
| spellingShingle | Animesh Basak Alokesh Pramanik Chander Prakash Subramaniam Shankar Sujan Debnath Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy Metals titanium alloy wire electro discharge machining recast layer micro-pillar deformation compression |
| title | Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy |
| title_full | Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy |
| title_fullStr | Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy |
| title_full_unstemmed | Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy |
| title_short | Understanding the Micro-Mechanical Behaviour of Recast Layer Formed during WEDM of Titanium Alloy |
| title_sort | understanding the micro mechanical behaviour of recast layer formed during wedm of titanium alloy |
| topic | titanium alloy wire electro discharge machining recast layer micro-pillar deformation compression |
| url | https://www.mdpi.com/2075-4701/12/2/188 |
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