Study of the Crack and Porosity Regulation of a Non-weldable Ni-Based Superalloy Fabricated by Laser Powder Bed Fusion
文献类型：期刊论文
| 作者 | Li, Shuijin1; Gao, Shuang1; Zhang, Weiguang1; Lu, Guoxin2; Cui, Luqing3; Li, Linzi4; Ma, Yinghui5; Wang, Sai6 |
| 刊名 | JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
 |
| 出版日期 | 2024-11-18 |
| 页码 | 12 |
| 关键词 | crack finite element modeling laser powder bed fusion non-weldable Ni-based superalloy porosity |
| ISSN号 | 1059-9495 |
| DOI | 10.1007/s11665-024-10362-4 |
| 通讯作者 | Gao, Shuang(gaoshuang_alloy@163.com) ; Wang, Sai(ws@zhejianglab.com) |
| 英文摘要 | It is very challenging to prepare non-weldable Ni-based superalloys without defects by laser powder bed fusion (LPBF) technology since they are prone to cracking due to the comparatively high content of Al and Ti. This paper studied the reduction of the crack and porosity of a non-weldable superalloy, IN939 Ni-based alloy, by preheating substrate and refining laser volume energy density of LPBF process. The results showed that the crack density increased with the laser volume energy density increasing; while, the porosity decreased. The range of laser volume energy density suitable for IN939 Ni-based superalloy was very narrow, which was from 37.5 to 58.3 J/mm3 considering the synchronized reduction of crack and porosity. The alloying element segregation and the high residual stress were two essential reasons for forming cracks. Further, the substrate preheating at 180 degrees C inhibited the formation of cracks; and hence, the mechanical property was slightly improved. This study will provide a reference for the preparation of LPBF non-weldable Ni-based superalloys. |
| 资助项目 | Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing) |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001357702400001 |
| 出版者 | SPRINGER |
| 资助机构 | Class III Peak Discipline of Shanghai-Materials Science and Engineering (High-Energy Beam Intelligent Processing and Green Manufacturing) |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Gao, Shuang; Wang, Sai |
| 作者单位 | 1.Shanghai Univ Engn Sci, Sch Mat Engn, Shanghai 201620, Peoples R China 2.Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China 3.Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710049, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 6.Zhejiang Lab, Hangzhou 311121, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shuijin,Gao, Shuang,Zhang, Weiguang,et al. Study of the Crack and Porosity Regulation of a Non-weldable Ni-Based Superalloy Fabricated by Laser Powder Bed Fusion[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2024:12. |
| APA | Li, Shuijin.,Gao, Shuang.,Zhang, Weiguang.,Lu, Guoxin.,Cui, Luqing.,...&Wang, Sai.(2024).Study of the Crack and Porosity Regulation of a Non-weldable Ni-Based Superalloy Fabricated by Laser Powder Bed Fusion.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,12. |
| MLA | Li, Shuijin,et al."Study of the Crack and Porosity Regulation of a Non-weldable Ni-Based Superalloy Fabricated by Laser Powder Bed Fusion".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2024):12. |
入库方式： OAI收割
来源：金属研究所
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