Effect of T6 heat treatment on microstructure and properties of  high pressure die cast ADC12 aluminum alloy

doi:10.13251/j.issn.0254-6051.2024.08.017

Abstract

Abstract: Effect of T6 heat treatment on microstructure and mechanical properties of high pressure die cast ADC12 aluminum alloy was studied. The results show that after solution treatment at 510 ℃ for 1 h and artificial aging at 200 ℃ for 6 h, the microstructure of the ADC12 aluminum alloy die casting is composed of fine eutectic structure and α solid solution, where the fine eutectic structure is formed during the high pressure die casting process. After heat treatment, eutectic Si phase and Al₂Cu phase in the aluminum alloy mainly exist as approximately spherical particles. After T6 heat treatment, the transition phase of the aluminum alloy die casting completely precipitates from the matrix phase, forming a stable θ phase and an α solid solution. After solution treatment at 510 ℃ for 1 h and artificial aging at 200 ℃ for 6 h, the hardness of the ADC12 aluminum alloy die casting reaches the maximum, being 128 HBW, this is caused by the precipitation strengthening phase Al₂Cu, which makes the supersaturated solid solution has a special crystal structure.

Key words: high pressure die casting, ADC12 aluminum alloy, T6 heat treatment, microstructure, mechanical properties

CLC Number:

TG146.2

Ren Yunfei, Pan Xinyuan, Wan Tianjian, Li Jinghui, Zhang Mingya. Effect of T6 heat treatment on microstructure and properties of high pressure die cast ADC12 aluminum alloy[J]. Heat Treatment of Metals, 2024, 49(8): 108-112.

References

[1]]Yang Z, Huang H L. Corrosion behavior of ADC12 aluminum alloy welded joint using tungsten inert gas welding in 3.5wt.%NaCl solution[J]. Materials Chemistry and Physics, 2023, 295: 32-34.
[2]]Cheng T C, Huang H L, Huang G L. Galvanic corrosion behavior between ADC12 aluminum alloy and copper in 3.5wt%NaCl solution[J]. Journal of Electroanalytical Chemistry, 2022, 927: 116984.
[3]]Liu N Z, Jiang B, Ji Z S. Salt spray corrosion and electrochemical corrosion property of anodic oxide films on ADC12 aluminum alloy[J]. Modern Physics Letters B, 2022, 36(4): 2150571.
[4]]Meng X X, Lin Y X. Chip morphology and cutting temperature of ADC12 aluminum alloy during high-speed milling[J]. Rare Metals, 2020, 40: 1915-1923.
[5]]Morton J R, Barlow J. Squeeze casting: From a theory to profit and a future[J]. The Foundryman, 1994, 87(1): 23-28.
[6]]Sujeet Kumar Gautam, Himadri Roy, Aditya Kumar Lohar. Effect of processing routes on structure-property correlationship of ADC12 Al alloy[J]. Materials Research Express, 2019, 6(2): 1308-1311.
[7]贾海龙, 周文强, 王思清, 等. 高性能挤压铸造铝合金研究进展[J]. 特种铸造及有色合金, 2020, 40(11): 1187-1194.
Jia Hailong, Zhou Wenqiang, Wang Siqing, et al. Research progress in high performance squeeze cast aluminum alloys[J]. Special Casting and Nonferrous Alloys, 2020, 40(11): 1187-1194.
[8]李宇飞, 冯志军, 李泽华, 等. 挤压铸造高强度铝合金汽车转向节铸件[J]. 特种铸造及有色合金, 2019, 39(12): 1308-1311.
Li Yufei, Feng Zhijun, Li Zehua, et al. Squeeze casting high strength aluminum alloy automobile steering knuckle[J]. Special Casting and Nonferrous Alloys, 2019, 39(12): 1308-1311.
[9]邓建新, 邵明, 游东东. 挤压铸造设备现状及发展分析[J]. 铸造, 2008(7): 643-646.
Deng Jianxin, Shao Ming, You Dongdong. Current status and development of squeeze casting machines[J]. Foundry, 2008(7): 643-646.
[10]戴翌龙. T6处理对热轧态Al-xCu-0.5Mg-0.7Si合金组织性能影响[J]. 特种铸造及有色合金, 2023, 43(3): 415-419.
Dai Yilong. Effects of T6 treatment on microstructure and properties of hot-rolled Al-xCu-0.5Mg-0.7Si alloy[J]. Special Casting and Nonferrous Alloys, 2023, 43(3): 415-419.
[11]李兴杰. 热处理对ADC12铝合金组织和性能的影响[D]. 沈阳: 东北大学, 2006.
[12]曾礼, 陈馨. 时效工艺对ADC12铝合金压铸件硬度影响的研究[C]//重庆市机械工程学会铸造分会、重庆铸造行业协会2010重庆市铸造年会论文集. 重庆铸造行业协会, 重庆市机械工程学会铸造分会, 2010: 203-205.
[13]]Bankim Chandra Ray, Rajesh Kumar Prusty, Deepak Nayak. Phase Transformations and Heat Treatments of Steels[M]. Karabas: CRC Press, 2020: 643-646.
[14]]Grushko Olga, Ovsyannikov Boris, Ovchinnokov Viktor. Aluminum-Lithium Alloys: Process Metallurgy, Physical Metallurgy, and Welding[M]. Karabas: CRC Press, 2016: 653-656.
[15]]Souissi M, Fang C M, Sahara R, et al. Formation energies of θ-Al₂Cu phase and precursor Al-Cu compounds: Importance of on-site Coulomb repulsion[J]. Computational Materials Science, 2021, 194: 1308-1311.
[16]]Adrián Lasagni Fernando, Degischer Hans Peter, Papakyriacou Maria. Influence of solution treatment, Sr-modification and short fibre reinforcement on the eutectic morphology of Al-Si alloys[J]. Practical Metallography, 2006, 43(10): 415-419.
[17]]Geng Huicheng, Wang Yilin, Zhu Bin, et al. Effect of solution treatment time on plasticity and ductile fracture of 7075 aluminum alloy sheet in hot stamping process[J]. Transactions of Nonferrous Metals Society of China, 2022, 32(11): 3516-3533.
[18]]Hu X H, Bahl S, Shyam A, et al. Repurposing the Al₂Cu phase to simultaneously increase the strength and ductility of an additively manufactured Al-Cu alloy[J]. Materials Science and Engineering A, 2022, 850: 143511.

Effect of T6 heat treatment on microstructure and properties of high pressure die cast ADC12 aluminum alloy

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