5Jahazi M, Egbali B. The influence of hot roiling parameters on the microstructure and mechanical properties of an ultrahigh strength steel [ J ]. Journal of Materials Processing Technology, 2000,103(2) :276 - 279.
6Bakkaloglu A. Effect of processing parameters on the microstructure and properties of an Nb microalloyed steel [J]. Materials Letters, 2002,56(3) :200- 209.
7Manohar P A, Chandra T, Ilhnore C R. Oontinuous cooling transformation behaviour of microalloyed steels containing Ti, Nb, Mn and Mo[J]. ISIJ International, 1996, 36 (12) : 1486 -1493.
8Gladman T, Dulieu D, Mcivor I D. Structure-property relationships in high-strength microadloyed steels [C ]// Microalloying ' 75, Proceedings of an International Symposium on High-Strength, Low-Alloy Steels. New York: Union Carbide Corporation, 1977:32-55.
9Xiao F R, Liao B, Shan Y Y, et al. Challenge of mechanical properties of an aeicular ferrite pipeline steel[J]. Materials Science and Engineering : A, 2006,431(1/2):41 -52.
10Echeverria A, Rodriguez Ibabe J M. The role of grain size in brittle panicle induced fracture of steels [ J ]. Materials Science and Engineering : A, 2003,346( 1/2) : 149 - 158.
