Molecular Dynamics Simulation of Persistent Slip Bands Formation in Nickel-base Superalloys
文献类型：期刊论文
| 作者 | Jian-Feng Huang5; Zhong-Lai Wang4; Er-Fu Yang3; Don McGlinchey5; Yuan-Xin Luo2; Yun Li1; Yi Chen1 |
| 刊名 | International Journal of Automation and Computing
 |
| 出版日期 | 2017 |
| 卷号 | 14期号:1页码:68-79 |
| 关键词 | Persistent slip bands (PSB) molecular dynamics superalloys computational simulation embedded atom model (EAM). |
| ISSN号 | 1476-8186 |
| DOI | 10.1007/s11633-016-1035-x |
| 文献子类 | IJAC-IA-2016-01-003.pdf |
| 英文摘要 | Persistent slip band (PSB) is an important and typical microstructure generated during fatigue crack initiation. Intensive work has been done to investigate the mechanisms of the formation of persistent slip bands since the 1950s when Wadsworth[1] observed the fatigue fracture in copper. Simulations have indicated that PSBs formation during fatigue crack initiation is related to the dislocation driving force and interaction. In this paper, a molecular dynamics (MD) simulation associated with embedded atom model (EAM) is applied to the PSBs formation in nickel-base superalloys with different microstructure and temperature under tensile-tensile loadings. Five MD models with different microstructure, grain orientation and simulation temperature were built up in these simulations. Our results indicated that within the λ phase by massive dislocations, pile-up and propagation which can penetrate the grain. Also, it is found that the temperature will affect the material fatigue performance and blur PSBs appearance. The simulation results are in strong agreement with published experimental test result. This simulation is based on the work[2]. The highlights of the article include: 1) investigation of the PSB formation via molecular dynamics simulation with three different parameters, 2) conduct of a new deformation and velocity combination controlled simulation for the PSB formation, 3) high-performance computing of PSB formation, and 4) systematic analysis of the PSB formation at the atomic scale in which the dislocation plays a critical role. |
| 源URL | [http://ir.ia.ac.cn/handle/173211/42467]  |
| 专题 | 自动化研究所_学术期刊_International Journal of Automation and Computing |
| 作者单位 | 1.School of Computer Science and Network Security, Dongguan University of Technology, Dongguan 523808, China 2.College of Mechanical Engineering, Chongqing University, Chongqing 400044, China 3.Space Mechatronic Systems Technology Laboratory (SMeSTech), Department of Design, Manufacture and Engineering Management, James Weir Building, University of Strathclyde, Glasgow G1 1XJ, UK 4.University of Electronic Science and Technology of China, Chengdu 611731, China 5.School of Engineering and Built Environment, Glasgow Caledonian University, Glasgow G4 0BA, UK |
| 推荐引用方式 GB/T 7714 | Jian-Feng Huang,Zhong-Lai Wang,Er-Fu Yang,et al. Molecular Dynamics Simulation of Persistent Slip Bands Formation in Nickel-base Superalloys[J]. International Journal of Automation and Computing,2017,14(1):68-79. |
| APA | Jian-Feng Huang.,Zhong-Lai Wang.,Er-Fu Yang.,Don McGlinchey.,Yuan-Xin Luo.,...&Yi Chen.(2017).Molecular Dynamics Simulation of Persistent Slip Bands Formation in Nickel-base Superalloys.International Journal of Automation and Computing,14(1),68-79. |
| MLA | Jian-Feng Huang,et al."Molecular Dynamics Simulation of Persistent Slip Bands Formation in Nickel-base Superalloys".International Journal of Automation and Computing 14.1(2017):68-79. |
入库方式： OAI收割
来源：自动化研究所
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