Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy
The titanium Ti6Al4V alloy has excellent properties, and is one of the most important and widely used metal materials in the field of modern high-tech. Selective laser melting (SLM) is an ideal process for the rapid prototyping of Ti6Al4V alloy components with complex structures, but the performance...
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| Format: | Article |
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MDPI AG
2020-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/18/3940 |
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| author | Xiaojin Miao Meiping Wu Jitai Han Haohao Li Xiu Ye |
| author_facet | Xiaojin Miao Meiping Wu Jitai Han Haohao Li Xiu Ye |
| author_sort | Xiaojin Miao |
| collection | DOAJ |
| description | The titanium Ti6Al4V alloy has excellent properties, and is one of the most important and widely used metal materials in the field of modern high-tech. Selective laser melting (SLM) is an ideal process for the rapid prototyping of Ti6Al4V alloy components with complex structures, but the performances need to be further improved. In this paper, the relative density, hardness, and microstructure under different scanning conditions were first analyzed in order to clarify the role of rescanning process in improving the performances. Then, the effects of different scanning strategies on the residual stress were analyzed. The results show that the strategy of partition rescanning has the most significant effect on residual stress. Finally, the SLM experiments of aviation nozzle rings were carried out. The results show that the average residual stress of the Re-SLMed sample was reduced from 322 MPa to 254 MPa. |
| first_indexed | 2024-03-10T16:32:37Z |
| format | Article |
| id | doaj.art-32c98840fa0143578a3150508483a019 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:32:37Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-32c98840fa0143578a3150508483a0192023-11-20T12:44:40ZengMDPI AGMaterials1996-19442020-09-011318394010.3390/ma13183940Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V AlloyXiaojin Miao0Meiping Wu1Jitai Han2Haohao Li3Xiu Ye4School of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Mechanical Engineering, Jiangnan University, Wuxi 214122, ChinaThe titanium Ti6Al4V alloy has excellent properties, and is one of the most important and widely used metal materials in the field of modern high-tech. Selective laser melting (SLM) is an ideal process for the rapid prototyping of Ti6Al4V alloy components with complex structures, but the performances need to be further improved. In this paper, the relative density, hardness, and microstructure under different scanning conditions were first analyzed in order to clarify the role of rescanning process in improving the performances. Then, the effects of different scanning strategies on the residual stress were analyzed. The results show that the strategy of partition rescanning has the most significant effect on residual stress. Finally, the SLM experiments of aviation nozzle rings were carried out. The results show that the average residual stress of the Re-SLMed sample was reduced from 322 MPa to 254 MPa.https://www.mdpi.com/1996-1944/13/18/3940titanium Ti6Al4V alloySLMrescanningremeltingresidual stressmechanical properties |
| spellingShingle | Xiaojin Miao Meiping Wu Jitai Han Haohao Li Xiu Ye Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy Materials titanium Ti6Al4V alloy SLM rescanning remelting residual stress mechanical properties |
| title | Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy |
| title_full | Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy |
| title_fullStr | Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy |
| title_full_unstemmed | Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy |
| title_short | Effect of Laser Rescanning on the Characteristics and Residual Stress of Selective Laser Melted Titanium Ti6Al4V Alloy |
| title_sort | effect of laser rescanning on the characteristics and residual stress of selective laser melted titanium ti6al4v alloy |
| topic | titanium Ti6Al4V alloy SLM rescanning remelting residual stress mechanical properties |
| url | https://www.mdpi.com/1996-1944/13/18/3940 |
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