Heat Treatment of Heavy Forgings with diameter 1700mm

Abstract:

In order to establish a suitable heat treatment process after forging for the heavy forgings to prevent “grain inheritance”, a heat treatment process including pretreatments, pre-heating, normalization, super-cooling and dehydrogenation is proposed. The heavy forgings with the ratio 1.3 of largest diameter 1700mm to its length 1260mm are manufactured by two times upsetting and elongating process. The results show that the heavy forgings treated according to the forging process and the heat treatment process are all qualified and up to the standards of supersonic inspection.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 2388-2391
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.2388
• Online since: July 2011
• Authors: Juan Hua Su, Xiao Fei Liu, Yun Yun Chen, Yu Lin Shi
• Keywords: Heavy Forgings, Normalization, Pre-Heating, Super-Cooling, Two Times Upsetting and Elongating Process

References

[1] Y.L. Shi: Mining and Processing Equipment, Vol. 10 (2000), p.61 (In Chinese)

[2] S.W. Thompson, G.Krauss: Metallugical Transctions A Vol. 20A (1989),p, 2279

[3] Y.D.Lu:Heat Treatment of Metals Vol. 29 (2004), p.41(In Chinese)

[4] Y.D Song, J.Y. Jin, ZY.Liu: Heavy Casting and Forging Vol. 4 (1998), p.34(In Chinese)

[5] M.Jahazi, B.Eghbali:Journal of Materials Processing Technology Vol. 113(2001):,P.594

[6] Y.Yazawa, T.Furuhara,T. Maki: Acta Materialia Vol. 52(2004),P.3727

[7] Y.D.MA, Y.D. Zhai, Youyong Li: Journal of NanJing University of Science and Technology (Nature Science), Vol 21(1997), p.560(In Chinese)

[8] H.Yun, C.J. Shen, X.R Lei: Heat Treatment of Metals Vol. 29 (2004), p.68 (In Chinese)

[9] Z.C. Liu, Z.C. Yang, Y.P.Hu:Heat Treatment of Metals Vol 28(2003), p.51(In Chinese)

[10] S.M. Schlogl, Y. V. Leeuwen, E. V. Giessen: Metallugical and Material Transctions A Vol. 31A(2000),p.125

[11] H.Zhang: Heat Treatment of Metals Vol. 27 (2002), p.53(In Chinese)