A novel process for the preparation of high-performance heat-resistant Al-Si-Fe alloy by powder metallurgy method

被引：0
作者：
Lv, Zhishuai [1 ]
Zhao, Xingming [1 ]
Chen, Jiabin [1 ]
Wei, Wei [1 ]
Zhu, Xiao [2 ]
Li, Honglin [2 ]
Liu, Xue [2 ]
Wang, Guangdong [1 ]
Zhao, Rongda [1 ]
Wu, Fufa [1 ]
机构：
[1] Liaoning Univ Technol, Sch Mat Sci & Engn, Mat Proc Engn, Jinzhou 121001, Peoples R China
[2] Liao Ning Zhong Wang Grp Co Ltd, Management Dept Prod Testing, Macro Metallog Examinat Room, Liaoyang 111000, Peoples R China
来源：
MATERIALS TODAY COMMUNICATIONS | 2024年 / 40卷
关键词：
Powder metallurgy; Al; -Si; -Fe; Rotational extrusion; Crushed oxide film; Mechanical properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE; COMPOSITES; COMPOUND; MG; CR;
D O I：
10.1016/j.mtcomm.2024.109656
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel method combining rotational extrusion with rapid solidification/powder metallurgy was developed to enhance the microstructure and properties of Al-Si-Fe alloys. This study conducted a comprehensive investigation into the phase composition, microstructure, and mechanical properties of the rotationally extruded Al-Si-Fe alloy. Experimental results confirmed the presence of alpha-Al, fl-Si, alpha-Al8Fe2Si, Al2FeSi, and Al2O3 phases within the alloy. The rotary extrusion technique significantly increased the density and reduced the porosity of the Al-Si-Fe alloy. The rotationally extruded alloy demonstrated considerably higher maximum microhardness and tensile strength (170 HV and 487 MPa, respectively) compared to the alloy produced by single forward extrusion. This study highlights how the superposition of deformation not only modifies the structure but also breaks the initial boundaries of the alloy powder particles, enhancing metallurgical bonding during subsequent sintering.
引用
收藏
页数：8
相关论文
共 32 条
[1]   Effect of heat treatment on microstructure and tensile properties of die-cast Al-Cu-Si-Mg alloys [J].
Cai, Qing ;
Mendis, Chamini L. ;
Wang, Shihao ;
Chang, Isaac T. H. ;
Fan, Zhongyun .
JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 881
[2]   Diffusion coefficients of some solutes in fcc and liquid Al: critical evaluation and correlation [J].
Du, Y ;
Chang, YA ;
Huang, BY ;
Gong, WP ;
Jin, ZP ;
Xu, HH ;
Yuan, ZH ;
Liu, Y ;
He, YH ;
Xie, FY .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 363 (1-2) :140-151
[3]  
Eidhed W, 2008, J MATER SCI TECHNOL, V24, P45
[4]   Effect of Mg as sintering additive on the consolidation of mechanically alloyed Al powder [J].
Fuentes, JJ ;
Rodríguez, JA ;
Herrera, EJ .
THERMEC'2003, PTS 1-5, 2003, 426-4 :4331-4336
[5]   Development of high performance diamond-coated drills for cutting high silicon aluminum alloy [J].
Hanyu, H ;
Kamiya, S ;
Odagi, H ;
Murakami, Y ;
Saka, M .
THIN SOLID FILMS, 2002, 413 (1-2) :139-146
[6]   The effect of squeeze casting process on the microstructure, mechanical properties and wear properties of hypereutectic Al-Si-Cu-Mg alloy [J].
Hao, Jianfei ;
Luo, Huixin ;
Bian, Jiancong ;
Shi, Yuanji ;
Yu, Baoyi ;
Li, Runxia. .
INTERNATIONAL JOURNAL OF METALCASTING, 2022, 16 (01) :153-165
[7]  
Hong GS, 2003, METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS, P697
[8]   The effects of Cr and Zr addition on the microstructure and mechanical properties of rapidly solidified Al-20Si-5Fe alloys [J].
Hong, SJ ;
Kim, TS ;
Kim, WT ;
Chun, BS .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 226 :878-882
[9]   Effects of samarium addition on microstructure and mechanical properties of as-cast Al-Si-Cu alloy [J].
Hu, Zhi ;
Yan, Hong ;
Rao, Yuan-sheng .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2013, 23 (11) :3228-3234
[10]   Microstructure, Mechanical Property and Thermal Conductivity of Al-Si-Fe-Mg Alloy Solidified Under High Pressures [J].
Huang, Haosheng ;
Wang, Ye ;
Bo, Jiang ;
Wang, Xiaohong ;
Ma, Tengfei ;
Zhu, Dongdong .
INTERNATIONAL JOURNAL OF METALCASTING, 2023, 17 (03) :2103-2108
1234