Induction brazing for rapid localized repair of Inconel 718
Vacuum furnace has been used for brazing repair of aerospace components, but it is a slow process which typically takes a few hours. The prolonged heating and cooling cycles could cause some adverse effects on the components such as excessive grain growth. A rapid brazing technique using induction c...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/153906 |
| _version_ | 1811697227795529728 |
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| author | Aprilia, A. Tan, Jin Lee Yang, Yongjin Tan, Sung Chyn Zhou, Wei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Aprilia, A. Tan, Jin Lee Yang, Yongjin Tan, Sung Chyn Zhou, Wei |
| author_sort | Aprilia, A. |
| collection | NTU |
| description | Vacuum furnace has been used for brazing repair of aerospace components, but it is a slow process which typically takes a few hours. The prolonged heating and cooling cycles could cause some adverse effects on the components such as excessive grain growth. A rapid brazing technique using induction coil was studied to evaluate its suitability for localized repair. Induction brazing of Inconel 718 was carried out using AMS 4777 brazing paste at different temperatures (950◦C, 1050◦C and 1150◦C) for various durations (2 min, 10 min and 20 min). Microstructure and microhardness were evaluated. The experimental results show that brazing at 1050◦C leads to desirable microstructures in a short period of merely 2 min. The study demonstrates the potential application of induction brazing for rapid localized aerospace repair. |
| first_indexed | 2024-10-01T07:51:55Z |
| format | Journal Article |
| id | ntu-10356/153906 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:51:55Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1539062022-01-07T04:49:39Z Induction brazing for rapid localized repair of Inconel 718 Aprilia, A. Tan, Jin Lee Yang, Yongjin Tan, Sung Chyn Zhou, Wei School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Inconel 718 AMS 4777 Vacuum furnace has been used for brazing repair of aerospace components, but it is a slow process which typically takes a few hours. The prolonged heating and cooling cycles could cause some adverse effects on the components such as excessive grain growth. A rapid brazing technique using induction coil was studied to evaluate its suitability for localized repair. Induction brazing of Inconel 718 was carried out using AMS 4777 brazing paste at different temperatures (950◦C, 1050◦C and 1150◦C) for various durations (2 min, 10 min and 20 min). Microstructure and microhardness were evaluated. The experimental results show that brazing at 1050◦C leads to desirable microstructures in a short period of merely 2 min. The study demonstrates the potential application of induction brazing for rapid localized aerospace repair. National Research Foundation (NRF) Published version This research funding was provided by National Research Foundation of Singapore (NRF) through the Industry Alignment Fund (IAF) and by Rolls-Royce for project ARMS 1.2 Repair and Restoration of Airfoils by Induction Brazing. 2022-01-07T04:49:39Z 2022-01-07T04:49:39Z 2021 Journal Article Aprilia, A., Tan, J. L., Yang, Y., Tan, S. C. & Zhou, W. (2021). Induction brazing for rapid localized repair of Inconel 718. Metals, 11(7), 1096-. https://dx.doi.org/10.3390/met11071096 2075-4701 https://hdl.handle.net/10356/153906 10.3390/met11071096 2-s2.0-85109412368 7 11 1096 en Metals © 2021 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Mechanical engineering Inconel 718 AMS 4777 Aprilia, A. Tan, Jin Lee Yang, Yongjin Tan, Sung Chyn Zhou, Wei Induction brazing for rapid localized repair of Inconel 718 |
| title | Induction brazing for rapid localized repair of Inconel 718 |
| title_full | Induction brazing for rapid localized repair of Inconel 718 |
| title_fullStr | Induction brazing for rapid localized repair of Inconel 718 |
| title_full_unstemmed | Induction brazing for rapid localized repair of Inconel 718 |
| title_short | Induction brazing for rapid localized repair of Inconel 718 |
| title_sort | induction brazing for rapid localized repair of inconel 718 |
| topic | Engineering::Mechanical engineering Inconel 718 AMS 4777 |
| url | https://hdl.handle.net/10356/153906 |
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