Towards fatigue-resistant steels: Interfacial fatigue crack mechanisms in complex inclusions revealed by TEM and atomic simulations
文献类型：期刊论文
| 作者 | Lyu, Ziyu1; Gu, Chao1; Liu WQ(刘文琦)4; Bao, Yanping1; Lian, Junhe2,3 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2025-05-01 |
| 卷号 | 253页码:9 |
| 关键词 | Interface structure Fatigue First-principal calculation Molecular dynamics Complex inclusion |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2025.113902 |
| 通讯作者 | Gu, Chao(guchao@ustb.edu.cn) ; Lian, Junhe(junhe.lian@aalto.fi) |
| 英文摘要 | Despite the significance of inclusions on fatigue properties, a thorough and physics-based understanding of the failure behavior of complex inclusions is still missing due to experimental limitations. An atomic-scale simulation approach is proposed for investigating the interfacial cracking behavior of Ca2Al2SiO7/CaS complex inclusion in steel under tensile-compressive cyclic loading conditions. The results show that regular parallel lattice distortions are induced in CaS to generate stable interfacial structures. Interestingly, these distortion rows will gradually disappear under compression and eventually deteriorate the distortions adjacent to the interfacial region, which become the crack nucleation sites under tension. This study provides an in-depth understanding of the fatigue mechanism of modern steels with complex inclusions and potentially offers a physics-based bottom-up method to determine the fatigue life of materials. |
| 分类号 | 二类/Q1 |
| WOS关键词 | MOLECULAR-DYNAMICS SIMULATIONS ; DISLOCATION NUCLEATION ; FRACTURE MECHANISM ; STRENGTH ; PLASTICITY ; DEFORMATION ; COMPOSITES ; ALUMINUM |
| 资助项目 | National Natural Science Foundation of China[52174297] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515110062] ; Young Elite Scientists Sponsorship Program by CAST[2022QNRC001] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001468266900001 |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Young Elite Scientists Sponsorship Program by CAST |
| 其他责任者 | Gu, Chao，Lian, Junhe |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101040]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing, Peoples R China; 2.Aalto Univ, Dept Mech Engn, Puumiehenkuja 3, Espoo, Finland; 3.Rhein Westfal TH Aachen, Inst Met Forming, Intzestr 10, D-52072 Aachen, Germany 4.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Lyu, Ziyu,Gu, Chao,Liu WQ,et al. Towards fatigue-resistant steels: Interfacial fatigue crack mechanisms in complex inclusions revealed by TEM and atomic simulations[J]. MATERIALS & DESIGN,2025,253:9. |
| APA | Lyu, Ziyu,Gu, Chao,刘文琦,Bao, Yanping,&Lian, Junhe.(2025).Towards fatigue-resistant steels: Interfacial fatigue crack mechanisms in complex inclusions revealed by TEM and atomic simulations.MATERIALS & DESIGN,253,9. |
| MLA | Lyu, Ziyu,et al."Towards fatigue-resistant steels: Interfacial fatigue crack mechanisms in complex inclusions revealed by TEM and atomic simulations".MATERIALS & DESIGN 253(2025):9. |
入库方式： OAI收割
来源：力学研究所
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