Effect of electromagnetic stirring on Sr modified aluminum matrix composites for sports equipment

doi:10.13251/j.issn.0254-6051.2023.07.038

Abstract

Abstract: Sr modified Al₃Ti/ADC12 aluminum matrix composites were prepared by electromagnetic stirring with Al-K₂TiF₆ as reaction system and ADC12 aluminum alloy as matrix for sports equipment. The effects of preparation process and process parameters on microstructure and mechanical properties of aluminum matrix composites were studied. The results show that both electromagnetic stirring and Sr modification can refine the microstructure of the Al₃Ti/ADC12 aluminum matrix composites. The α-Al phase is refined to globular crystal, and the size of Al₃Ti is reduced to 10 μm, the agglomeration phenomenon of Al₃Ti is improved. The fishbone-like AlFeMnSi phase disappears, and the eutectic Si is refined from long needle to short rod. As the stirring current increases, the size of α-Al phase is smaller, and the morphology is rounder. When the stirring current is 35 A, the size of α-Al phase is the smallest, the morphology is the roundest, the porosity is the smallest, and the tensile strength and elongation are the largest, which are increased by 24.1% and 22.1%, respectively, compared with ADC12 aluminum alloy matrix. Electromagnetic stirring and Sr modification play a role in dispersion strengthening and fine grain strengthening of aluminum matrix composites.

Key words: sports equipment, aluminum matrix composites, electromagnetic stirring, microstructure, mechanical properties

CLC Number:

TG146.2

Ji Wangqin, Wang Xiaobing, Zhou Yakun, Zhao Yin. Effect of electromagnetic stirring on Sr modified aluminum matrix composites for sports equipment[J]. Heat Treatment of Metals, 2023, 48(7): 217-222.

References

[1]卢川, 刘朝猛. 超声振动制备半固态体育器材用铝合金组织及其拉伸性能研究[J]. 铸造, 2021, 70(4): 449-453.
Lu Chuan, Liu Chaomeng. Microstructure and tensile properties of semi-solid aluminum alloy for sports equipment prepared by ultrasonic vibration for sports equipment[J]. Foundry, 2021, 70(4): 449-453.
[2]王祝堂. 铝材在体育器械中的应用[J]. 轻金属, 2017(10): 1-5.
Wang Zhutang. Application of aluminum in sports equipment[J]. Light Metals, 2017(10): 1-5.
[3]刘欣, 秦宇. 加热方式对体育器材用5052铝合金锻压件性能的影响[J]. 轻合金加工技术, 2017, 45(2): 42-46.
Liu Xin, Qin Yu. Effects of heating methods on mechanical property and corrosion resistance of 5052 aluminum alloy forgings for sports equipment[J]. Light Alloy Fabrication Technology, 2017, 45(2): 42-46.
[4]胡鹏, 安小轩, 罗新民. 超声波对6061铝合金健身器材表面微弧氧化层的影响[J]. 热加工工艺, 2019, 48(22): 110-115.
Hu Peng, An Xiaoxuan, Luo Xinmin. Effect of ultrasound on micro-arc oxidation layer on surface of 6061 aluminum alloy fitness equipment[J]. Hot Working Technology, 2019, 48(22): 110-115.
[5]Sun Yonghui, Yan Hong, Chen Xiaohui, et al. Microstructure evolution of semi-solid TiAl₃/A356 composite prepared by ultrasonic vibration[J]. Rare Metal Materials and Engineering, 2019, 48(1): 24-32.
[6]张丽凤. 汽车用6061铝合金热压缩变形行为研究[J]. 塑性工程学报, 2020, 27(11): 174-181.
Zhang Lifeng. Study on hot compression deformation behavior of 6061 aluminum alloy for automobile[J]. Journal of Plasticity Engineering, 2020, 27(11): 174-181.
[7]姜少婧, 王祖平. 自然时效效应及预时效处理对7A20铝合金组织性能的影响[J]. 金属热处理, 2020, 45(10): 60-63.
Jiang Shaojing, Wang Zuping. Effect of natural aging effect and pre-aging treatment on microstructure and properties of 7A20 aluminum alloy[J]. Heat Treatment of Metals, 2020, 45(10): 60-63.
[8]吴姚莎, 张亚民, 王丽荣, 等. 钛对碳纳米管增强铝基复合材料组织与性能的尺寸效应[J]. 金属热处理, 2020, 45(8): 64-70.
Wu Yaosha, Zhang Yamin, Wang Lirong, et al. Dimension effect of Ti powder size on evolution of microstructure and mechanical properties of CNT/Al composites[J]. Heat Treatment of Metals, 2020, 45(8): 64-70.
[9]王光磊, 曲迎东, 李广龙, 等. 原位Al₂O₃颗粒增强Al-20Si复合材料的制备及微观组织[J]. 铸造, 2020, 69(8): 834-838.
Wang Guanglei, Qu Yingdong, Li Guanglong, et al. Preparation and microstructure of in-situ Al₂O₃ particle reinforced Al-20Si composite[J]. Foundry, 2020, 69(8): 834-838.
[10]黄世源, 袁丽丽, 唐鑫, 等. 半固态搅拌铸造TiO₂/A356复合材料的力学性能研究[J]. 铸造, 2021, 70(4): 438-443.
Huang Shiyuan, Yuan Lili, Tang Xin, et al. Study on mechanical properties of TiO₂/A356 composites prepared by semi-solid stirring casting[J]. Foundry, 2021, 70(4): 438-443.
[11]庄伟彬, 杨海瑞, 吴博, 等. 原位自生Al₁₈B₄O₃₃W/6061复合材料的组织、硬度及耐磨性能[J]. 功能材料, 2020, 51(7): 7155-7162.
Zhuang Weibin, Yang Hairui, Wu Bo, et al. Microstructure, hardness and wear resistance of in situ Al₁₈B₄O₃₃W/6061 composite[J]. Journal of Functional Materials, 2020, 51(7): 7155-7162.
[12]蒋华国, 李明. 喷射成形建筑用硅质岩/铝基复合材料组织及力学性能分析[J]. 粉末冶金工业, 2020, 30(6): 69-73.
Jiang Huaguo, Li Ming. Analysis of microstructure and mechanical properties of siliceous rock/5052 composites for construction by jet forming[J]. Powder Metallurgy Industry, 2020, 30(6): 69-73.
[13]陈华, 赵占奎. 细晶TiAl基合金的制备及高温氧化行为[J]. 稀有金属材料与工程, 2011, 40(2): 301-306.
Chen Hua, Zhao Zhankui. Preparation of TiAl based alloy with fine grains and its high temperature oxidation behavior[J]. Rare Metal Materials and Engineering, 2011, 40(2): 301-306.
[14]刘莹, 莫肇月, 莫灼强, 等. Sr对4343/3003/4343铝合金复合板组织与力学性能的影响[J]. 热加工工艺, 2018, 47(24): 105-108.
Liu Ying, Mo Zhaoyue, Mo Zhuoqiang, et al. Effects of Sr on microstructure and mechanical properties of 4343/3003/4343 aluminum alloy composite sheet[J]. Hot Working Technology, 2018, 47(24): 105-108.
[15]李灿, 陈文琳, 雷远. 微量Sr及均匀化工艺对Al-Mg-Si-Cu-Mn变形铝合金铸态组织与性能的影响[J]. 材料工程, 2019, 47(2): 90-98.
Li Can, Chen Wenlin, Lei Yuan. Effect of minor strontium and homogenization process on as-cast microstructure and mechanical properties of Al-Mg-Si-Cu-Mn wrought aluminum alloy[J]. Journal of Materials Engineering, 2019, 47(2): 90-98.
[16]朱艳丽, 赵君文, 李微, 等. 电磁搅拌对7A04铝合金大体积半固态浆料组织的影响[J]. 中国有色金属学报, 2014, 24(11): 2735-2742.
Zhu Yanli, Zhao Junwen, Li Wei, et al. Effect of electromagnetic stirring on microstructure of large volume semi-solid slurry 7A04 aluminum alloy[J]. The Chinese Journal of Nonferrous Metals, 2014, 24(11): 2735-2742.
[17]张晨阳, 赵升吨, 王永飞. 电磁搅拌法制备的半固态2A50合金的显微组织演变[J]. 中国有色金属学报, 2015, 25(7): 1781-1789.
Zhang Chenyang, Zhao Shengdun, Wang Yongfei. Microstructural evolution of semisolid 2A50 alloy prepared by electromagnetic stirring[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(7): 1781-1789.
[18]Eiken J, Apel M, Liang S M, et al. Impact of P and Sr on solidification sequence and morphology of hypoeutectic Al-Si alloys: Combined thermodynamic computation and phase-field simulation[J]. Acta Materialia, 2015, 98: 152-163.