EFFECT OF HIGH-INTENSITY ULTRASONIC TREATMENT ON REFINEMENT OF Al-5Cu ALLOY INGOTS
Keywords:
high-intensity ultrasonic treatment, Al-5Cu alloy ingots, grain refinement, porosities of ingot
Abstract
The effect of high-intensity ultrasonic treatment combined with bottom cooling treatment on the refinement of Al-5Cu alloy ingots was studied. The results show that ultrasonic treatment combined with forced cooling at the bottom of ingots has a good refining effect, and the best refining effect can be obtained at 2000 W and after 120 s. The cross-section of an ingot exhibits almost 100 % refined equiaxed grains and no porosity. The method of combining ultrasonic treatment and forced cooling at the bottom of ingots not only influences the ingot refinement, but also decreases the porosity of the ingots with an increase in the ultrasonic duration. The ultrasonic degassing effect is due to the release of hydrogen in biofilms, which expand and grow gradually; finally, they burst on the melt surface, achieving the effect of degassing.
References
1. Jian X, Meek T T, Han Q. Refinement of eutectic silicon phase of aluminum A356 alloy using high-intensity ultrasonic vibration. Script Materialia, 2006, 54: 893-896.
2. Tsunekawa Yoshiki, Okumiya Masahiro, Motomura Takahiro. Semi-solid casting with ultrasonically melt-treated billets of Al-7%Si alloys. China Foundry, 2012, 9(1): 78-83.
3. Lin Chong, Wu Shusen, Zeng Jinbiao, et al. Combined effects of ultrasonic vibration and manganese on Fe-containing intermetallic compounds and mechanical properties of Al-17Si alloy with 3wt.%Fe. China Foundry, 2013, 10: 148-154.
4. Zhong Gu, Wu Shusen, Jiang Huawen, et al. Effects of ultrasonic vibration on the iron-containing intermetallic compounds of high silicon aluminum alloy with 2% Fe. Journal of Alloys and Compounds, 2010, 492: 482-487.
5. Fu Ying, Li Junwen, Song Xiaoyang, et al. Restraining solute segregation of Al–1%Si alloy in diverse physical field. Materials Technology, 2012, 27(2): 173-175.
6. Eskin G I. Influence of cavitation treatment of melts on the processes of nucleation and growth of crystals during solidification of ingots and castings from light alloys. Ultrasonics Sonochemistry, 1994, 1(1): S59-S63.
7. Roozbeh Arshadi, Richard S C Cobbold. A pioneer in the development of modern ultrasound: Robert William Boyle (1883-1955). Ultrasound in Medicine & Biology. 2007, 33(1): 3-14.
8. Campbell J. Effect of vibration during solidification. International Metals Review. 1981, 26(2): 71-104.
9. Eskin G I. Ultrasonic treatment of light alloy melts. Amsterdam: Gordon and Breach Science Publishers, 1998.
10. Abramov O V. High-intensity ultrasonics: Theory and industrial applications. US: Gordon and Breach Science Publishers, 1998.
11. Xu H, Han Q, Meek T T. Effects of ultrasonic vibration on degassing of aluminum alloys. Materials Science and Engineering A, 2008,473: 96-104.
12. Xu H, Meek T T, Han Q. Effects of ultrasonic field and vacuum on degassing of molten aluminum alloy. Materials Letters, 2007, 61: 1246-1250.
13. Wu Shusen, Liu Longfei, Ma Qianqian, et al.Degassing effect of ultrasonic vibration in molten melt and semi-solid slurry of Al-Si alloys. China Foundry, 2012,9(3): 201-206.
14. Wu Shusen, Lin Chong, Lü Shulin, et al. Research progress on microstructure evolution of semi-solid aluminum alloys in ultrasonic field and their rheocasting. China Foundry, 2014, 11(4): 258-267.
15. Lü Shulin, Wu Shusen, Dai Wei, et al. Preparation of semi-solid 5052 aluminum alloy slurry by indirect ultrasonic vibration. Acta Metallurgica Sinica, 2011, 47(5): 634-640.
16. Wu Shusen, Lü Shulin, An Ping, et al. Microstructure and property of rheocasting aluminum-alloy made with indirect ultrasonic vibration process. Materials Letters, 2012, 73: 150-153.
17. Li Junwen, Momono Tadashi, FU Ying. Effect of ultrasonic power on density and refinement in
aluminum ingot. Foundry, 2007, 56(2): 152-155(in Chinese).
18. Jia Zheng, Zhang Zhiqiang, Le Qichi, et al. Effects of ultrasonic melt treatment on degassing of AZ91 magnesium alloy. Transactions of materials and heat treatment, 2012, 33(9): 38-42(in Chinese).
19. A. R. Naji Meidani, M. Hasan. A study of hydrogen bubble growth during ultrasonic degassing of Al-Cu alloy melts. Journal of Materials Processing Technology, 2004,147: 311-320.
20. T S Shih, L W Huang, Y J Chen. Relative porosity in aluminium and in aluminium alloys. International Journal of cast Metals Research, 2005, 18(5): 301-308.
21. M Divandari, J Campbell. Oxide film characteristics of Al-7Si-Mg alloy in dynamic conditions in casting. International Journal of cast Metals Research, 2004, 17(3): 182-187.
2. Tsunekawa Yoshiki, Okumiya Masahiro, Motomura Takahiro. Semi-solid casting with ultrasonically melt-treated billets of Al-7%Si alloys. China Foundry, 2012, 9(1): 78-83.
3. Lin Chong, Wu Shusen, Zeng Jinbiao, et al. Combined effects of ultrasonic vibration and manganese on Fe-containing intermetallic compounds and mechanical properties of Al-17Si alloy with 3wt.%Fe. China Foundry, 2013, 10: 148-154.
4. Zhong Gu, Wu Shusen, Jiang Huawen, et al. Effects of ultrasonic vibration on the iron-containing intermetallic compounds of high silicon aluminum alloy with 2% Fe. Journal of Alloys and Compounds, 2010, 492: 482-487.
5. Fu Ying, Li Junwen, Song Xiaoyang, et al. Restraining solute segregation of Al–1%Si alloy in diverse physical field. Materials Technology, 2012, 27(2): 173-175.
6. Eskin G I. Influence of cavitation treatment of melts on the processes of nucleation and growth of crystals during solidification of ingots and castings from light alloys. Ultrasonics Sonochemistry, 1994, 1(1): S59-S63.
7. Roozbeh Arshadi, Richard S C Cobbold. A pioneer in the development of modern ultrasound: Robert William Boyle (1883-1955). Ultrasound in Medicine & Biology. 2007, 33(1): 3-14.
8. Campbell J. Effect of vibration during solidification. International Metals Review. 1981, 26(2): 71-104.
9. Eskin G I. Ultrasonic treatment of light alloy melts. Amsterdam: Gordon and Breach Science Publishers, 1998.
10. Abramov O V. High-intensity ultrasonics: Theory and industrial applications. US: Gordon and Breach Science Publishers, 1998.
11. Xu H, Han Q, Meek T T. Effects of ultrasonic vibration on degassing of aluminum alloys. Materials Science and Engineering A, 2008,473: 96-104.
12. Xu H, Meek T T, Han Q. Effects of ultrasonic field and vacuum on degassing of molten aluminum alloy. Materials Letters, 2007, 61: 1246-1250.
13. Wu Shusen, Liu Longfei, Ma Qianqian, et al.Degassing effect of ultrasonic vibration in molten melt and semi-solid slurry of Al-Si alloys. China Foundry, 2012,9(3): 201-206.
14. Wu Shusen, Lin Chong, Lü Shulin, et al. Research progress on microstructure evolution of semi-solid aluminum alloys in ultrasonic field and their rheocasting. China Foundry, 2014, 11(4): 258-267.
15. Lü Shulin, Wu Shusen, Dai Wei, et al. Preparation of semi-solid 5052 aluminum alloy slurry by indirect ultrasonic vibration. Acta Metallurgica Sinica, 2011, 47(5): 634-640.
16. Wu Shusen, Lü Shulin, An Ping, et al. Microstructure and property of rheocasting aluminum-alloy made with indirect ultrasonic vibration process. Materials Letters, 2012, 73: 150-153.
17. Li Junwen, Momono Tadashi, FU Ying. Effect of ultrasonic power on density and refinement in
aluminum ingot. Foundry, 2007, 56(2): 152-155(in Chinese).
18. Jia Zheng, Zhang Zhiqiang, Le Qichi, et al. Effects of ultrasonic melt treatment on degassing of AZ91 magnesium alloy. Transactions of materials and heat treatment, 2012, 33(9): 38-42(in Chinese).
19. A. R. Naji Meidani, M. Hasan. A study of hydrogen bubble growth during ultrasonic degassing of Al-Cu alloy melts. Journal of Materials Processing Technology, 2004,147: 311-320.
20. T S Shih, L W Huang, Y J Chen. Relative porosity in aluminium and in aluminium alloys. International Journal of cast Metals Research, 2005, 18(5): 301-308.
21. M Divandari, J Campbell. Oxide film characteristics of Al-7Si-Mg alloy in dynamic conditions in casting. International Journal of cast Metals Research, 2004, 17(3): 182-187.
Published
2024-04-03
How to Cite
1.
Jia Z, Wang ZZ, Fu L. EFFECT OF HIGH-INTENSITY ULTRASONIC TREATMENT ON REFINEMENT OF Al-5Cu ALLOY INGOTS. MatTech [Internet]. 2024Apr.3 [cited 2024Dec.10];58(2):185–192. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/1038
Section
Articles
