Investigation, Application and Assessment of T122 Heat Resistant Steel


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T122 is a competitive heat resistant steel used for the construction of ultra super critical power stations. The authors experimentally investigated the effect of heat treatment and variation of influential chemical elements, such as vanadium, copper and nitrogen, on the microstructure and properties of the steel, in which the optimal heat treatment schedule during heating was specified and the proper chemical element scope was also decided to achieve the expected service performance. The application and potential of the steel in China today and tomorrow were reasonably briefed. On the other hand, the authors also proposed some intrinsic challenge of the steel, which may undermine the basis of the industrial application of the steel, comparing to other candidates, i.e. T92 steel. An assessment on T122 steel was carefully made from the viewpoint of industrial manufacturing and application.



Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran




Z. D. Liu et al., "Investigation, Application and Assessment of T122 Heat Resistant Steel", Materials Science Forum, Vols. 539-543, pp. 2949-2953, 2007

Online since:

March 2007




[1] J.R. Cao, Z.D. Liu, S.C. Cheng, J.X. Xie, Effect of austenitizing conditions on abnormal grain growth in T122 heat resistant steel, J. Iron and Steel Research, No. 2, Vol. 18, 2006 (in press).

[2] T. Gladman, Abnormal Grain Growth during the Heat Treatment of Steel, Materials Science Forum, 94-96, 1992, 113.


[3] Z.D. Liu, S.C. Cheng, H.S. Bao, W.T. Fu, G. Yang, L.M. Wang: Effect of vanadium content on microstructure and properties of T122 steel, International Symposium on USC Steels for Fossil Power Plants, Beijing, China, April 12-14, 2005, pp.100-110.