Refining mechanism of yttrium on primary  α-Al  semi-solid Al alloy

doi:10.11890/1006-7191-104-277

Abstract

Abstract:

Semi-solid Al7Si0.3Mg alloy slurry, which is grain-refined by yttrium, is manufactured by low temperature pouring. The effects of grain-refined by yttrium on the morphology and the grain size of the primary α-Al in semi-solid Al7Si0.3Mg alloy are researched. The results indicate that semi-solid Al7Si0.3Mg alloy with particle-like and rosette-like primary α-Al can be prepared by low temperature pouring from liquid Al7Si0.3Mg alloy grain-refined by yttrium. The grain size and particle morphology of primary α-Al in Al7Si0.3Mg alloy are markedly improved by 0.5 wt pct Y. The refining mechanism of Y on the morphology and the grain size of the primary $\alpha$-Al in semi-solid Al7Si0.3Mg alloy are delved.

Key words: Semi-solid, Yttrium, Al7Si0.3Mg alloy, Refining mechanism

Zheng LIU, Yongmei HU,Xiaomei LIU. Refining mechanism of yttrium on primary α-Al semi-solid Al alloy[J]. Acta Metallurgica Sinica (English Letters), 2010, 23(4): 277-284.

References

[1] P. Falak, B. Niroumand, Scripta Materialia 53 (2005) 53. [2] S. Xing, J. Tan, L. Zhang, et al, Proc of the 8th Int Conf on Semi-solid Processing of Alloys and Composites, Limassol, Cyprus, (2004) 61. [3] M. C. Flemings, R. A.Martinez, Proc of the 9th Int Conf on Semi-solid Processing of Alloys and Composites, Busan, Korea, (2006) 1. [4] D. Brabazon, D. J. Browne, A. J.Carr, Materials Science and Engineering A326 (2002) 370. [5] K. Sukumaran, B. C. Pai, M. Chakraborty, Materials Science and Engineering A369 (2004) 275. [6] Z. Yang, P. K. Seo and C. G. Kang, J Mater Sci Techno, 21 (2005) 219. [7] S. Nafisi, R.Ghomashchi, J of Mater Proc Tech 174 (2006) 371. [8] M.A. Easton, H. Kaufmann, Materials Science and Engineering A420 (2006) 135. [9] S. Nafisi, R. Ghomashchi, Materials Science and Engineering A452-453 (2007) 445. [10] R. Nadella, D.G. Eskin, and L. Katgerman, Metall Mater Trans 39A (2008) 450. [11] Z. Liu, W. M. Mao, Z. D. Zhao, Acta Metallurgica Sinica(English Letters) 21 (2008) 57. [12] P. S. Mohnanty, J. E.Gruzleski, Acta Metall 43 (1995) 2001. [13] J. Fjellstedt, A. E. W. Jarfors, L. Svendsen, Journal of Alloys and Compounds 283 (1999) 192. [14] L. N. Yu, X. F. Liu, Journal of Alloys and Compounds 425 (2006) 245. [15] S. A. Kori, B. S. Murty, M. Chakraborty, Materials Science and Engineering A283 (2000) 94. [16] C. Limmaneevichitr, W. Eidhed, Materials Science and Engineering A349 (2003) 197. [17] M. A. Easton, D. H. StJohn, Acta Mater 49 (2001) 1867. [18] B. S. Murty, S. A. Kori, M. Chakraborty, Inter Met Rev 47 (2002) 1. [19] M. Ravi, U. T. S. Pillai, B. C. Pai, A. D. Damodaran, E. S. Dwarakadasa, Metall Trans 27A (1996) 1283. [20] J. Y. Chang, I. G. Moon, C. S. Choi, J Mater Sci 33 (1998) 5015. [21] J. Zhang, Z. Fan, Y. Q. Wang, B. L. Zhou, Mater Sci Eng A281 (2000) 104. [22] H. K. Yi, D. Zhang, Mater Lett 57 (2003) 2523. [23] Z. Liu, Y. M. Hu, Special Casting & Nonferrous Alloys 27 (2007) 271(in Chinese). [24] Z. Q. Zheng, K. Y. Chen, Journal of Materials and Metallurgy 3 (2004) 202(in Chinese). [25] A. Knuutinen, K. Nogita, S. D. McDonald, et al, Journal of Light Metals 1 (2001) 229. [26] S. Nagasaki and M. Hirabayashi, Binary Alloy Phase-diagrams (Metallurgical Industry Press, Beijing, 2004) p.48 (in Chinese).

Refining mechanism of yttrium on primary α-Al semi-solid Al alloy

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	En-Yang Liu, Si-Rong Yu, Ming Yuan, Fan-Guo Li, Yan Zhao, Wei Xiong. Effects of Semi-solid Isothermal Heat Treatment on Microstructures and Damping Capacities of Fly Ash Cenosphere/AZ91D Composites [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(9): 953-962.
[2]	Yong-Jin Wang, Ren-Bo Song, Ren-Feng Song. Phase Transformation and Carbide Precipitation of Functional Gradient Semi-solid 9Cr18 Steel [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(8): 823-830.
[3]	Ke Yang, Xin-Hui Fan, Bing Li, Yan-Hong Li, Xin Wang, Xuan-Xuan Xu. Non-isothermal Crystallization Kinetics and Isothermal Crystallization Kinetics in Supercooled Liquid Region of Cu-Zr-Al-Y Bulk Metallic Glass [J]. Acta Metallurgica Sinica (English Letters), 2018, 31(3): 290-298.
[4]	Xia Luo, Yun-Zhong Liu, Bin Wang. Post-treatment Process of Semi-solid Powder Rolling [J]. Acta Metallurgica Sinica (English Letters), 2015, 28(10): 1305-1315.
[5]	Prosenjit Das, Sudip K. Samanta, Himadri Chattopadhyay,Pradip Dutta. Effect of pouring temperature on cooling slope casting of semi-solid Al-Si-Mg alloy [J]. Acta Metallurgica Sinica (English Letters), 2012, 25(5): 329-339.
[6]	Yuansheng CHENG,Shoujing LUO. Strengthening and toughening forming of Al/Al₂O₃ composite in pseudo-semi-solid state [J]. Acta Metallurgica Sinica (English Letters), 2010, 23(1): 21-26.
[7]	Zheng LIU,Xiaomei LIU,Chunhui HU,Weimin MAO. Research on fractal characteristics of primary phase morphology in semi-solid A356 alloy [J]. Acta Metallurgica Sinica (English Letters), 2009, 22(6): 421-428.
[8]	Z.D. Zhao,W.M. Mao. Preparation of Semi-Solid AlSi7Mg Alloy Slurry [J]. Acta Metallurgica Sinica (English Letters), 2008, 21(2): 139-145 .
[9]	Z. Liu, W.M. Mao, Z.D. Zhao. Effect of Grain-Refined on Primary α Phase in Semi-Solid A356 Alloy Prepared by low superheat Pouring and Slightil Electromagnetic Stirring [J]. Acta Metallurgica Sinica (English Letters), 2008, 21(1): 57-64 .
[10]	. Rheocasting of A356 alloy by Low Superheat Pouring with a Shearing Field [J]. Acta Metallurgica Sinica (English Letters), 2006, 19(5): 328-334 .
[11]	W.M. Mao, A.M. Zhao , X.Y. Zhong. SPHERICAL MICROSTRUCTURE FORMATION OF THE SEMI-SOLID HIGH CHROMIUM CAST IRON Cr20Mo2 [J]. Acta Metallurgica Sinica (English Letters), 2004, 17(1): 77-82 .
[12]	H.Tong, Y.G. Wang, J.H. Lei, D.Q. Li, P. Tang. EXTRACTION KINETICS OF YTTRIUM WITH PURIFIED CYANEX 923 FROM NITRATE MEDIUM [J]. Acta Metallurgica Sinica (English Letters), 2003, 16(6): 428-432 .
[13]	W.M.Mao, A.M.Zhao, D.Yun, L.P.Zhang, X.Y.Zhong. PREPARATION STUDY OF SEMI-SOLID 60Si2Mn SPRING STEEL SLURRY [J]. Acta Metallurgica Sinica (English Letters), 2003, 16(6): 483-488 .
[14]	Z.S. Zhen, W.M. Mao, S.J. Yan. THE APPARENT VISCOSITY OF SEMI-SOLID AZ91D ALLOY AT STEADY STATE [J]. Acta Metallurgica Sinica (English Letters), 2002, 15(6): 505-510 .
[15]	R.B. Song, Y.L. Kang, J.L. Sun. MICROSTRUCTURE EVALUATION OF SEMI-SOLID STEELMATERIALS IN ROLLING PROCESS AND THERESULTING MECHANICAL PROPERTIES [J]. Acta Metallurgica Sinica (English Letters), 2001, 14(5): 347-351 .