采用熔融玻璃净化结合气体保护的方法,使Ni80 3B19 7过共晶合金获得了407 K的大过冷度,研究了其在不同过冷度下快速凝固过程中的再辉行为.结果表明,Ni80 3B19.7过共晶合金在0～112 K过冷度范围内无明显再辉,在112～323 K过冷度范围内,其再辉曲线表现为两个再辉峰,而在323～407 K过冷度范围内,其再辉曲线为一个再辉峰.初生固相含量的随着过冷度的增大而增大,导致一次再辉度随着过冷度的增大而增大.深过冷Ni80 3B19.7合金凝固组织中非规则共晶的形成,归因于共晶两相在快速凝固阶段以自由枝晶的形式进行的非耦合生长和再辉后的慢速凝固阶段两相枝晶所发生的形态上的转变.
参考文献
| [1] | D.M.Herlach, Mater. Sci. Eng., R12(4-5), 177(1994) |
| [2] | M.G.Chu, Y.Shizohara, M.C.Flemings, Metall. Trans., 15A, 1303(1984) |
| [3] | ZHANG Zhenzhong, SONG Guangsheng, YANG Gencang, ZHOU Yaohe, Progress in Natural Science, 10(1),54(2000)(张振忠,宋广生,杨根仓,周尧和,自然科学进展,10(1),54(2000)) |
| [4] | T.Z.Kattamis, M.C.Flemings, Metall. Trans., 1, 1449(1970) |
| [5] | M.Leonhardt, W.Loser, H.-G.Lindenkreuz, Mater. Sci. Eng., A271, 31(1999) |
| [6] | W.Loser, R.Hermann, M.Leonhardt, D.Stephan, R.Bormann, Mater. Sci. Eng., A224, 53(1997) |
| [7] | A.T.Dutra, S.Milenkovic, C.S.Kiminami, A.M.Santino, M.C.Goncalves, R.Carama, J.Alloys And Compounds, 381, 72(2004) |
| [8] | B.L.Jones, Metall Trans, 2A, 2950(1971) |
| [9] | B.Wei, D.M.Herlach, B.Feuerbacher, F.Sommer, Acta. Metall. Mater., 41, 1801(1993) |
| [10] | LI Shunpu, ZHAO Deqian, CHEN Xichen, Acta Metall Sinica., 31(7), 304(1995)(李顺朴,赵德乾,陈熙琛,金属学报,31(7),304(1995)) |
| [11] | M.Li, K.Nagashio, K.Kuribayashi, Acta. Mater., 50, 3239(2002) |
| [12] | W.J.Yao, N.Wang, B.Wei, Mater. Sci. Eng., A344, 10(2003) |
| [13] | Mingjun Li, K.Nagashio, T.Ishikawa, S.Yoda, K.Kuribayashi, Acta. Mater., 53, 731(2005) |
| [14] | R.Goetzinger, M.Barth, D.M.Herlach, Acta. Mater., 46, 1647(1998) |
| [15] | W.B.Castro a, M.L.Maiaa, C.S.Kiminamib, C.Bolfarini, Mater. Sci. Eng., A304～306, 255(2001) |
| [16] | J.Pu, W.J.Feng, J.Z.Xiao, Z.H.Gau, H.Y.Yi, K.Cui, Journal of Crystal Growth, 256, 139(2003) |
| [17] | L.Battezzati, Carlo Antonione, Marcello Baricco, J.Alloys And Compounds, 247, 164(1997) |
| [18] | P. Nash, Phase diagrams of binary nickel alloys. Materials Park, ASM International, c1991 |
| [19] | Hu Hanqi, Solidification Theroy of Metals, (Beijing, Beijing Metallurgical Industry Press, 1985) p.168(胡汉启,金属凝固理论(北京,冶金工业出版社,1985)p.168) |
| [20] | K.A.Jackson, J.D.Hunt, Trans Metall Soc AIME, 236, 1129(1966) |
| [21] | ZHANG Zhenzhong, SONG Guangsheng, YANG Gencang, Progress in Nature Science, 10(6), 560(2000)(张振忠,宋广生,杨根仓,自然科学进展,10(6),560(2000)) |
| [22] | J.F.Li, Y.C.Liu, Y.L.Lu, G.C.Yang, Y.H.Zhou, Journal of Crystal Growth, 192, 462(1998) |
| [23] | M.Schwarz, A.Karma, K.Eckler, D.M.Herlach, Phys. Rev. Lett., 73, 1380(1994) |
| [24] | Liu Feng, Yang Gencang, Guo Xuefeng, Mater. Sci, Eng., A311, 51(2001) |
| [25] | LI Jinfu, YANG Gencang, ZHOU Yaohe, Acta Metall Sinica, 34(2), 113(1998)(李金富,杨根仓,周尧和,金属学报,34,117(1998)) |
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