The metal active gas (MAG) multilayer weld metal consists of the columnar grain zone (CGZ) and the fine grain zone (FGZ). Mechanical properties and microstructure of the CGZ and FGZ have been analyzed and evaluated. The inclusion with a size of 0.2-1.0 μm is typical log-normal distribution. The morphology of inclusions has been analyzed using transmission electron microscope (TEM). With the microalloying element Ti addition, much MnTiO3 phase precipitates on the Mn-silicates matrix, which is beneficial for the nucleation of acicular ferrite (AF). The probable mechanism for the nucleation of AF has been discussed.
YU Xin
. Effects of Ti-bearing inclusions on the microstructure and mechanical properties of MAG multilayer weld metal[J]. Acta Metallurgica Sinica (English Letters), 2012
, 25(1)
: 1
-9
.
DOI: 10.11890/1006-7191-121-1
[1] S.P. Lu, S.T. Wei, Z.Q. Liu, D.Z. Li and Y.Y.Li, ISIJ Int 50 (2010) 248
[2] G.M. Evans, Weld J 72 (1993) 123s
[3] G.M. Evans, Weld J 71 (1992) 447s
[4] S. Talas and R.C. Cochrane, J Alloy Compd 396 (2005) 224
[5] T.-K. Lee, H.J. Kim, B.Y. Kang and S.K. Hwang, ISIJ Int 40 (2000) 1260
[6] I. Rak, V. Gliha and M. Kocak, Metall Trans A 28 (1997) 199
[7] J.P. Snyder II and A.W. Pense, Weld J 61 (1982) 201s
[8] W. Yan, Y.Y. Shan and K. Yang, Metall Trans A 37 (2006) 2147
[9] L.P. Zhang, C.L. Davis and M. Strangwood, Metall TransA 30 (1999) 2089
[10] W.W. Bose-Filho, A.L.M. Carvalho and M. Strangwood, Mater Charact 58 (2007) 29
[11] A.O. Titov, R. Inoue and H. Suito, ISIJ Int 48 (2008) 301
[12] M.J. Leap and J.C. Wingert, Metall Trans A 30 (1999) 93
[13] S.K. Liu and G.Y. Zhang, Metall Trans A 21 (1990) 1509
[14] C.Y. Chen, H.W. Yen, F.H. Kao, W.C. Li, C.Y. Huang, J.R.Yang and S.H. Wang, Mater Sci Eng A 499 (2009) 162
[15] M. Ohno and K. Matsuura, ISIJ Int 48 (2008)1373
[16] K. Oikawa, K. Ishida and T. Nishizawa, ISIJ Int 37 (1997) 332
[17] Y. Tomita, N. Saito, T. Tsuzuki, Y. Tokunaga and K.Okamoto, ISIJ Int 34 (1994) 829
[18] J.-S. Byun, J.-H. Shim, Y.W. Cho, D.N. Lee, Acta Mater 51 (2003) 1593
[19] S. St-Laurent and G. L'Esperance, Mater Sci Eng A 149 (1992) 203
[20] W. Shu, X.M. Wang, S.R. Li and X.L. He, Acta Metall Sin 46 (2010) 997 (in Chinese)
[21] M.H. Avakonandeh-Gharavol, M. Haddas-Sabzevar and A.Haerian, Mater Des 30 (2009) 1902
[22] V.I. Bol'shakov, G.D. Sukhomlin and V.I. Kuksenko, Met Sci Heat Treatment 51 (2009) 461
[23] V.I. Bol'shakov, D.V. Laukhin, G.D. Sukhomlin and V.I.Kuksenko, Met Sci Heat Treatment 46 (2004) 545
[24] B. Hwang, Y.G. Kim, S. Lee, Y.M. Kim, N.J. Kim and J.Y.Yoo, Metall Trans A 36 (2005) 2107
[25] J.-H. Shim, Y.W. Cho, S.H. Chung, J.-D. Shim and D.N. Lee, Acta Mater 47 (1999) 2751
[26] H. Mabuchi, R. Uemori and M. Fujioka, ISIJ Int 36 (1996) 1406
[27] H.S. Kim, H.-G. Lee and K.-S. Oh, Met Mater 6 (2000) 305
[28] K. Yamamoto, T. Hasegawa and J. Takamura, ISIJ Int 36 (1996) 80
WeChat