Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys
The present study investigated the effect of heat treatment (pre- and post-weld) on the microstructure and mechanical properties of an SS304L/IN718 dissimilar rotary friction welded alloy. Optical and scanning electron micrographs of the dissimilar rotary friction welded SS304L/IN718 joints in solut...
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MDPI AG
2023-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/6/3584 |
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| author | Perumandla Pavan Mahesh Kumar Talari Nagumothu Kishore Babu Ateekh Ur Rehman Prakash Srirangam |
| author_facet | Perumandla Pavan Mahesh Kumar Talari Nagumothu Kishore Babu Ateekh Ur Rehman Prakash Srirangam |
| author_sort | Perumandla Pavan |
| collection | DOAJ |
| description | The present study investigated the effect of heat treatment (pre- and post-weld) on the microstructure and mechanical properties of an SS304L/IN718 dissimilar rotary friction welded alloy. Optical and scanning electron micrographs of the dissimilar rotary friction welded SS304L/IN718 joints in solution-treated (ST), solution-treated and aged (STA), and post-weld heat treatment (PWHT) conditions revealed defect-free welds. Furthermore, various zones were observed across the weld region, namely the fully deformed zone (FDZ), thermomechanical affected zone (TMAZ), heat affected zone (HAZ), and base material (BM). Among the SS304L/IN718 dissimilar friction welds with different heat treatment conditions (prior ST and STA, PWHT), the PWHTed dissimilar welds exhibited excellent mechanical properties, which could be attributed to the formation of the strengthening precipitates γ′ and γ″ during double aging in PWHT. In contrast, the mechanical properties were found to be the poorest in the STA condition, possibly due to the dissolution of the strengthening precipitates γ′ and γ″ during friction welding. It was observed that the SS304L/IN718 dissimilar friction welds in the ST and STA conditions failed in the HAZ of the SS304L side, away from the weld interface, indicating that the weld region was stronger than the weakest base metal (SS304L) in the various joints. |
| first_indexed | 2024-03-11T06:58:27Z |
| format | Article |
| id | doaj.art-463f00d6a5f64315a9af06bbf44a7ff0 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T06:58:27Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-463f00d6a5f64315a9af06bbf44a7ff02023-11-17T09:23:50ZengMDPI AGApplied Sciences2076-34172023-03-01136358410.3390/app13063584Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L AlloysPerumandla Pavan0Mahesh Kumar Talari1Nagumothu Kishore Babu2Ateekh Ur Rehman3Prakash Srirangam4Department of Metallurgical and Materials Engineering, National Institute of Technology, Warangal 506004, IndiaDepartment of Metallurgical and Materials Engineering, National Institute of Technology, Warangal 506004, IndiaDepartment of Metallurgical and Materials Engineering, National Institute of Technology, Warangal 506004, IndiaDepartment of Industrial Engineering, College of Engineering, King Saud University, Riyadh 11451, Saudi ArabiaWarwick Manufacturing Group, University of Warwick, Coventry CV4 7AL, UKThe present study investigated the effect of heat treatment (pre- and post-weld) on the microstructure and mechanical properties of an SS304L/IN718 dissimilar rotary friction welded alloy. Optical and scanning electron micrographs of the dissimilar rotary friction welded SS304L/IN718 joints in solution-treated (ST), solution-treated and aged (STA), and post-weld heat treatment (PWHT) conditions revealed defect-free welds. Furthermore, various zones were observed across the weld region, namely the fully deformed zone (FDZ), thermomechanical affected zone (TMAZ), heat affected zone (HAZ), and base material (BM). Among the SS304L/IN718 dissimilar friction welds with different heat treatment conditions (prior ST and STA, PWHT), the PWHTed dissimilar welds exhibited excellent mechanical properties, which could be attributed to the formation of the strengthening precipitates γ′ and γ″ during double aging in PWHT. In contrast, the mechanical properties were found to be the poorest in the STA condition, possibly due to the dissolution of the strengthening precipitates γ′ and γ″ during friction welding. It was observed that the SS304L/IN718 dissimilar friction welds in the ST and STA conditions failed in the HAZ of the SS304L side, away from the weld interface, indicating that the weld region was stronger than the weakest base metal (SS304L) in the various joints.https://www.mdpi.com/2076-3417/13/6/3584dissimilar rotary friction weldingIN718SS304Ldynamic recrystallization (DRX)microstructuremechanical properties |
| spellingShingle | Perumandla Pavan Mahesh Kumar Talari Nagumothu Kishore Babu Ateekh Ur Rehman Prakash Srirangam Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys Applied Sciences dissimilar rotary friction welding IN718 SS304L dynamic recrystallization (DRX) microstructure mechanical properties |
| title | Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys |
| title_full | Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys |
| title_fullStr | Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys |
| title_full_unstemmed | Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys |
| title_short | Effect of Heat Treatment on the Microstructure and Mechanical Properties of Rotary Friction Welded Dissimilar IN718 to SS304L Alloys |
| title_sort | effect of heat treatment on the microstructure and mechanical properties of rotary friction welded dissimilar in718 to ss304l alloys |
| topic | dissimilar rotary friction welding IN718 SS304L dynamic recrystallization (DRX) microstructure mechanical properties |
| url | https://www.mdpi.com/2076-3417/13/6/3584 |
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