Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L
This study aimed to understand the effect of heat accumulation on microstructure formation on STS 316L during multilayer deposition by a laser metal deposition (LMD) process and to predict the microstructure morphology. A comprehensive experimental and numerical study was conducted to quantify the s...
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MDPI AG
2020-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/14/4874 |
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| author | Jaewoong Park Jin-young Kim Inseo Ji Seung Hwan Lee |
| author_facet | Jaewoong Park Jin-young Kim Inseo Ji Seung Hwan Lee |
| author_sort | Jaewoong Park |
| collection | DOAJ |
| description | This study aimed to understand the effect of heat accumulation on microstructure formation on STS 316L during multilayer deposition by a laser metal deposition (LMD) process and to predict the microstructure morphology. A comprehensive experimental and numerical study was conducted to quantify the solidification parameters (temperature gradient (G) and growth rate (R)) in the LMD multilayer deposition process. During deposition, the temperature profile at a fixed point in the deposit was measured to validate the numerical model, and then the solidification parameters were quantified using the model. Simultaneously, the microstructure of the deposit was investigated to confirm the microstructure morphology. Then, a relationship between the microstructure morphology and the G/R was proposed using a solidification map. The findings of this study can guide the design of scanning paths to produce deposits with a uniform structure. |
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| format | Article |
| id | doaj.art-6cea8eee5cc745109d4dc95ec41535d7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:26:44Z |
| publishDate | 2020-07-01 |
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| spelling | doaj.art-6cea8eee5cc745109d4dc95ec41535d72023-11-20T06:55:53ZengMDPI AGApplied Sciences2076-34172020-07-011014487410.3390/app10144874Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316LJaewoong Park0Jin-young Kim1Inseo Ji2Seung Hwan Lee3School of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10540, KoreaSchool of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10540, KoreaSchool of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10540, KoreaSchool of Aerospace and Mechanical Engineering, Korea Aerospace University, 76 Hanggongdaehak-ro, Deogyang-gu, Goyang-si, Gyeonggi-do 10540, KoreaThis study aimed to understand the effect of heat accumulation on microstructure formation on STS 316L during multilayer deposition by a laser metal deposition (LMD) process and to predict the microstructure morphology. A comprehensive experimental and numerical study was conducted to quantify the solidification parameters (temperature gradient (G) and growth rate (R)) in the LMD multilayer deposition process. During deposition, the temperature profile at a fixed point in the deposit was measured to validate the numerical model, and then the solidification parameters were quantified using the model. Simultaneously, the microstructure of the deposit was investigated to confirm the microstructure morphology. Then, a relationship between the microstructure morphology and the G/R was proposed using a solidification map. The findings of this study can guide the design of scanning paths to produce deposits with a uniform structure.https://www.mdpi.com/2076-3417/10/14/4874laser metal deposition (LMD)solidification parametersmicrostructureheat accumulationSTS 316L |
| spellingShingle | Jaewoong Park Jin-young Kim Inseo Ji Seung Hwan Lee Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L Applied Sciences laser metal deposition (LMD) solidification parameters microstructure heat accumulation STS 316L |
| title | Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L |
| title_full | Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L |
| title_fullStr | Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L |
| title_full_unstemmed | Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L |
| title_short | Numerical and Experimental Investigations of Laser Metal Deposition (LMD) Using STS 316L |
| title_sort | numerical and experimental investigations of laser metal deposition lmd using sts 316l |
| topic | laser metal deposition (LMD) solidification parameters microstructure heat accumulation STS 316L |
| url | https://www.mdpi.com/2076-3417/10/14/4874 |
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