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A two-dimensional multiscale model is presented for simulating laser melting process, which is the same as laser solid forming (LSF) without the addition of metallic powders into the molten pool. The metallurgical process in molten pool is simulated, including the temperature distribution, the pool shape, and the solidification microstructure. The shape of the molten pool and the microstructure in Fe-C single crystal substrate at a laser scanning speed of 15 mm/s is simulated. Results reveal the instability from planar interface to cell\ dendrite morphologies in the molten pool. At the bottom of the molten pool, the growth morphology is planar interface, which is also called bonding zone. Epitaxial dendrite arrays can be seen to grow above the bonding zone.
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Keywords:
- cellular automaton /
- solidified microstructure /
- laser solid forming
[1] Keicher D M, Smugeresk y J E, Romero J A, Griffith M L, Harwell L D 1997 SPIE 2293 91
[2] Keicher D M, Smugeresky J E 1997 JOM 49 51
[3] Magee J, Watkins K G, Steen W M 1998 Journal of Laser Application 10 235240
[4] Lin X, Yue T M, Yang H O, Huang W D 2006 Acta Mater. 54 1901
[5] Gremaud M, Wagmiere J D, Zryd A, Kurz W 1996 Surface Engineering 12 251
[6] Gaumann M, Henry S, Cleton F, Wagniere J D, Kurz W 1999 Materials Science & Engineering A 271A 232
[7] Tseng A A, Lee M, Zhao 1998 Proceeding s of the Third Pacific Rim International Conference on Advanced Materials and Processing, Honolulu, Hawaii, USA, July 12-16, 1998 p1611-1618
[8] Li Y M, Huang W D, Feng L P, Chen J 1999 Acta Metall. Sinica (English Letters) 12 1025
[9] Li Y M 2001 Ph. D. Dissertation (Xi'an: Northwestern Polytechnical University) (in Chinese) [李延民 2001 博士学位论文(西安: 西北工业大学)]
[10] Wang L, Felicelli S 2006 Mater. Sci. Eng. A 435–436 625
[11] Peyre P, Aubry P, Fabbro R, Neveu R, Longuet A 2008 J. Phys. D: Appl. Phys. 41 025403
[12] Brown S, Song H 1992 J. Eng. Ind. Trans. ASME 114 441
[13] Fallah V, Alimardani M, Corbin SF, Khajepour A 2011 Comput. Mater. Sci. 50 2124
[14] Fallah V, Amoorezaei M, Provatas N, Corbin S F, Khajepour A 2012 Acta Mater. 60 1633
[15] Yin H, Felicelli S D 2010 Acta Mater. 58 1455
[16] Nastac L 1999 Acta Mater. 47 4253
[17] Sanchez LB, Stefanescu D M 2004 Metall. Mater. Trans. 35 A2471
[18] Zhu M F, Stefanescu D M 2007 Acta Mater. 55 1741
[19] Wei L, Lin X, Wang M, Huang W D 2011 Appl. Phys. A 103 123
[20] Wei L, Lin X, Wang M, Huang W D 2012 Comput. Mater. Sci. 54 66.
[21] Wei L, Lin X, Wang M, Huang WD 2012 Physica B 407 2471
[22] Wei L, Lin X, Wang M, Huang W D 2012 Acta Phys. Sin. 61 098104 (in Chinese) [魏雷, 林鑫, 王猛, 黄卫东 2012 物理学报 61 098104]
[23] Zhang Y P, Lin X, Wei L 2012 Acta Phys. Sin. 61 228106 (in Chinese) [张云鹏, 林鑫, 魏雷等 2012 物理学报 61 228106]
[24] Wang L L, Wang Z J, Lin X, Wang M, Huang W D 2012 Chin. Phys. B 21 066801
[25] Wang Z J, Wang J C, Yang G C 2010 Chin. Phys. B 19 017305
[26] Gueyffier D, Li J, Nadim A, Scardovelli R, Zaleski S 1999 J. Comput. Phys. 152 423
[27] Zhang K, Wang S, Liu W, Shang X 2014 Materials & Design 55 104
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[1] Keicher D M, Smugeresk y J E, Romero J A, Griffith M L, Harwell L D 1997 SPIE 2293 91
[2] Keicher D M, Smugeresky J E 1997 JOM 49 51
[3] Magee J, Watkins K G, Steen W M 1998 Journal of Laser Application 10 235240
[4] Lin X, Yue T M, Yang H O, Huang W D 2006 Acta Mater. 54 1901
[5] Gremaud M, Wagmiere J D, Zryd A, Kurz W 1996 Surface Engineering 12 251
[6] Gaumann M, Henry S, Cleton F, Wagniere J D, Kurz W 1999 Materials Science & Engineering A 271A 232
[7] Tseng A A, Lee M, Zhao 1998 Proceeding s of the Third Pacific Rim International Conference on Advanced Materials and Processing, Honolulu, Hawaii, USA, July 12-16, 1998 p1611-1618
[8] Li Y M, Huang W D, Feng L P, Chen J 1999 Acta Metall. Sinica (English Letters) 12 1025
[9] Li Y M 2001 Ph. D. Dissertation (Xi'an: Northwestern Polytechnical University) (in Chinese) [李延民 2001 博士学位论文(西安: 西北工业大学)]
[10] Wang L, Felicelli S 2006 Mater. Sci. Eng. A 435–436 625
[11] Peyre P, Aubry P, Fabbro R, Neveu R, Longuet A 2008 J. Phys. D: Appl. Phys. 41 025403
[12] Brown S, Song H 1992 J. Eng. Ind. Trans. ASME 114 441
[13] Fallah V, Alimardani M, Corbin SF, Khajepour A 2011 Comput. Mater. Sci. 50 2124
[14] Fallah V, Amoorezaei M, Provatas N, Corbin S F, Khajepour A 2012 Acta Mater. 60 1633
[15] Yin H, Felicelli S D 2010 Acta Mater. 58 1455
[16] Nastac L 1999 Acta Mater. 47 4253
[17] Sanchez LB, Stefanescu D M 2004 Metall. Mater. Trans. 35 A2471
[18] Zhu M F, Stefanescu D M 2007 Acta Mater. 55 1741
[19] Wei L, Lin X, Wang M, Huang W D 2011 Appl. Phys. A 103 123
[20] Wei L, Lin X, Wang M, Huang W D 2012 Comput. Mater. Sci. 54 66.
[21] Wei L, Lin X, Wang M, Huang WD 2012 Physica B 407 2471
[22] Wei L, Lin X, Wang M, Huang W D 2012 Acta Phys. Sin. 61 098104 (in Chinese) [魏雷, 林鑫, 王猛, 黄卫东 2012 物理学报 61 098104]
[23] Zhang Y P, Lin X, Wei L 2012 Acta Phys. Sin. 61 228106 (in Chinese) [张云鹏, 林鑫, 魏雷等 2012 物理学报 61 228106]
[24] Wang L L, Wang Z J, Lin X, Wang M, Huang W D 2012 Chin. Phys. B 21 066801
[25] Wang Z J, Wang J C, Yang G C 2010 Chin. Phys. B 19 017305
[26] Gueyffier D, Li J, Nadim A, Scardovelli R, Zaleski S 1999 J. Comput. Phys. 152 423
[27] Zhang K, Wang S, Liu W, Shang X 2014 Materials & Design 55 104
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