Multi-scale simulation of microstructure evolution during direct laser deposition of Inconel718
文献类型:期刊论文
作者 | Meng, Guiru1; Gong YD(巩亚东)1; Zhang, Jingdong1; Zhu LD(朱立达)1; Xie, Hualong1; Zhao JB(赵吉宾)2 |
刊名 | International Journal of Heat and Mass Transfer |
出版日期 | 2022 |
卷号 | 191页码:1-12 |
ISSN号 | 0017-9310 |
关键词 | Additive manufacturing Cellular automaton Finite element Microstructure |
产权排序 | 2 |
英文摘要 | As a free forming additive manufacturing technology for high performance metal parts, laser deposition manufacturing has a broad application prospect in aerospace and other fields. The solidification behavior and microstructure of molten pool determine the mechanical properties of the deposited parts. A multi-scale Cellular Automaton (CA)- Finite Element (FE) model is developed to simulate the microstructure evolution with different process parameters during the Direct Laser Deposition (DLD) process. Temperature data and solidification parameters under different process parameters are obtained by finite element method, which establish connections between macroscopic temperature field and microstructure simulation. In addition, the effects of different process parameters on dendrite morphology, element segregation and grain structure are investigated. The primary dendrite arm spacing (PDAS), Nb element precipitation and grain size all increase with the increase of laser power, which are caused by the decrease of cooling rate. Moreover, the trend of the simulated results of microstructure under various process parameters are consistent with the experimental results. |
语种 | 英语 |
资助机构 | Joint Funds of the National Natural Science Foundation of China (No. U1908230 ) |
源URL | [http://ir.sia.cn/handle/173321/30782] |
专题 | 工艺装备与智能机器人研究室 |
通讯作者 | Gong YD(巩亚东); Zhu LD(朱立达) |
作者单位 | 1.School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China 2.Shenyang Institute of Automation Chinese Academy of Sciences, Shenyang 110000, China |
推荐引用方式 GB/T 7714 | Meng, Guiru,Gong YD,Zhang, Jingdong,et al. Multi-scale simulation of microstructure evolution during direct laser deposition of Inconel718[J]. International Journal of Heat and Mass Transfer,2022,191:1-12. |
APA | Meng, Guiru,Gong YD,Zhang, Jingdong,Zhu LD,Xie, Hualong,&Zhao JB.(2022).Multi-scale simulation of microstructure evolution during direct laser deposition of Inconel718.International Journal of Heat and Mass Transfer,191,1-12. |
MLA | Meng, Guiru,et al."Multi-scale simulation of microstructure evolution during direct laser deposition of Inconel718".International Journal of Heat and Mass Transfer 191(2022):1-12. |
入库方式: OAI收割
来源:沈阳自动化研究所
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