Acta Metallurgica Sinica (English Letters) >
Strengthening mechanism of Fe-Cu alloy during aging
Online published: 2012-10-26
To give a further research on strengthening mechanism of binary Fe-Cu alloys during the aging process, the compositions, size distributions and volume fractions of precipitates were investigated by carbon extraction replicas. Both the size and the volume fraction of precipitates increase with the aging time prolonged. The precipitate sizes are corresponding with Weibull distribution. The stability of the sample aged for 35 min is worse than that aged for 1800 min and 18000 min. The precipitate is Cu-rich phase in the early aging process, and Cu content increases with the prolonging aging time. Before aging peak, the precipitation of Cu-rich phase plays a dominant role in strengthening. The growth and the change in crystal structure of the precipitate particles are the main factors leading to the decrease in strengthening after the aging peak.
Zhitao HUANG1, Wenhuai TIAN1, Wenxiu LENG . Strengthening mechanism of Fe-Cu alloy during aging[J]. Acta Metallurgica Sinica (English Letters), 2012 , 25(5) : 401 -408 . DOI: 10.11890/1006-7191-125-401
[1] W. Wang, B.G. Zhou, G. Xu, D.F. Chu and J.C. Peng, Mater Charact 62 (2011) 438
[2] R. Monzen, M.L. Jenkins and A.P. Sutton, Philos Mag A 80(3) (2000) 711
[3] H.P. Ren, H.Y. Wang, Z.C. Liu and Z.G. An, J Iron and Steel Res 14(1) (2007) 64
[4] H.P. Ren, Z.C. Liu, H.Y. Wang and F.L. Guo, Trans Mater Heat Treat 28(SUPPL.) (2007) 119 (in Chinese)
[5] W.M. Mao, H.P. Ren and Y.N. Yu, Trans Mater Heat Treat 25(2) (2004) 1 (in Chinese)
[6] H.X. Ma and Y.G. Li, Mater Sci Eng 20(3) (2002) 328
[7] J.W. Zhang, X.J. Tian, L. Dong, C.P. Fu and Y. Han, J Taiyuan Heavy Machinery Institute 14(3) (1993) 1 (inChinese)
[8] D.F. Wang, P. Yang, L.D. Kong, B.X. Kang and P. Liu, Hot Work Technol (7) (2005) 31
[9] D.L. Liu, Y.L. Wang, X.D. Huo, N.J. Chen, W.R. Shao, J. Fu and Y.L. Kang, Acta Metall Sin 38(6) (2002) 647 (in Chinese)
[10] M.A. Chen, C.S. Wu and M. Yang, Acta Metall Sin 40(2) (2004) 148 (in Chinese)
[11] Z.J. Deng and P.H. Li, Phys Exam Test 23(2) (2005) 39
[12] Y. Imanami, M. Murakami, N. Nakada, T. Tsuchiyama and S. Takai, ISIJ Int 49(8) (2009) 1225
[13] R.H. Zhang and H.W. Meng, Ningxia Electric Power (2) (2006) 55 (in Chinese)
[14] D.F. Chu, G. Xu, W. Wang, J.C. Peng, J.A. Wang and B.X. Zhou, Acta Metall Sin 47(3) (2011) 269 (in Chinese)
[15] S.R. Goodman, S.S. Brenner and J.R. Low, Metall Trans 4(10) (1973) 2371
[16] M.E. Fine, J.Z. Liu and M.D. Asta, Mater Sci Eng A 463 (2007) 271
[17] W.X. Leng, W.H. Tian, H.Y. Gao and S.W. Cheng, Rare Met Mate Eng 39(Suppl.1) (2010) 117 (in Chinese)
[18] H.P. Ren, H.Y. Wang and Z.C. Liu, J Phys: Conference Series 96 (2008) 012206
[19] G.A. Chen, W.Y. Yang, S.Z. Guo and Z.Q. Sun, J Univ Sci Technol Beijing 27(3) (2005) 302 (in Chinese)
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