| A cost-effective iron-rich medium entropy alloys with the balance of strength and ductility | |
| Zheng, Zehong1,2; Shen, Qingkai1; Yu, Xiaoyan1; Ou, Ning1; Dong, Changwen2; Li, Jin3; Zhu, Qiang4; Xue, Jiaxiang1 | |
| 2024-10 | |
| 发表期刊 | VACUUM
 |
| ISSN | 0042-207X |
| 卷号 | 228 |
| 摘要 | Iron-rich medium-entropy alloys (MEAs) have attracted attention due to the balance for cost and properties of alloy. In this study, a combined metastability engineering and eutectic high-entropy alloys (EHEAs) design strategy were employed to develop a cost-effective, iron-rich MEAs for the Fe-Cr-Ni-Al MEAs system using CALPHAD simulations. This approach enabled the tailored control of soft and hard phases within the nonisoatomic MEAs system by manipulating the elemental ratios. Specifically, increasing the aluminum (Al) content promoted the stability of the BCC/B2 phase, and the microstructure of the MEA transitioned from a singlephase FCC structure to a mixed FCC + BCC/B2 structure, culminating in a final single-phase BCC/B2 structure. This BCC/B2 phase precipitation strengthening mechanism led to enhanced microhardness and yield strength in MEAs with high Al content. Notably, the Al11-as alloy demonstrated a yield strength of 692.7 +/- 30.4 MPa (precipitation strengthening is 428.98 MPa, accounting for the true yield strength of the alloy 61.9 %), with an ultimate tensile strength reaching a maximum value of 992.3 +/- 32.77 MPa. Moreover, the alloy retained a satisfactory elongation of 7.1 +/- 2.9 %. These efforts hold promise for the development and application of costeffective, iron-rich MEAs for the Fe-Cr-Ni-Al MEAs system. |
| 关键词 | Metastability-engineering strategy Eutectic high-entropy alloys strategy CALPHD Iron-rich medium-entropy alloys Precipitation strengthening |
| 其他关键词 | MECHANICAL-PROPERTIES ; MICROSTRUCTURE ; RESISTANCE ; EVOLUTION ; SYSTEM |
| DOI | 10.1016/j.vacuum.2024.113506 |
| 收录类别 | SCIE |
| 语种 | 英语 |
| WOS研究方向 | Materials Science ; Physics |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS记录号 | WOS:001282492400001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 原始文献类型 | Article |
| EISSN | 1879-2715 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.library.ouchn.edu.cn/handle/39V7QQFX/171588 |
| 专题 | 国家开放大学 |
| 通讯作者 | Xue, Jiaxiang |
| 作者单位 | 1.South China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Peoples R China; 2.Guizhou Minzu Univ, Engn Training Ctr, Guiyang 550025, Peoples R China; 3.Guizhou Minzu Univ, Sch Mechatron Engn, Guiyang 550025, Peoples R China; 4.Open Univ Guangdong, Sch Robot, Guangzhou 510091, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Zehong,Shen, Qingkai,Yu, Xiaoyan,et al. A cost-effective iron-rich medium entropy alloys with the balance of strength and ductility[J]. VACUUM,2024,228. |
| APA | Zheng, Zehong.,Shen, Qingkai.,Yu, Xiaoyan.,Ou, Ning.,Dong, Changwen.,...&Xue, Jiaxiang.(2024).A cost-effective iron-rich medium entropy alloys with the balance of strength and ductility.VACUUM,228. |
| MLA | Zheng, Zehong,et al."A cost-effective iron-rich medium entropy alloys with the balance of strength and ductility".VACUUM 228(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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