Thermomechanical processing effects on C−Mn−Si TRIP steels
A variety of thermomechanical-processing treatments were performed on a niobium microalloyed and a nonmicroalloyed Si−Mn transformation-induced plasticity steel to generate different austenite conditions (i.e., dynamic and static recrystallization and pancaking) prior to transformation. These were, in turn, subjected to different transformation schedules to generate a variety of microstructures and mechanical properties. The various thermomechanical processing and transformation conditions led to structures with a relatively small variation in ultimate tensile strength, but tensile elongations to fracture from about 20% to 60%.
KeywordsAustenite Bainite Ultimate Tensile Strength Trip Steel Tensile Elongation
Unable to display preview. Download preview PDF.
- 1.S. Sangal, N.C. Goel, and K. Tangri, “Titanium Based Composites,”Metall. Trans., 16A (1985), p. 2023.Google Scholar
- 4.W. Leslie et al.,Trans ASM, 46 (1954), p. 1470.Google Scholar
- 6.P. Wanjara, R.A.L. Drew, and S. Yue,International Symposium on Innovative Processing and Characterization of Composite Materials (New York: ASME, 1995).Google Scholar
- 7.G.E. Lucas, J.W. Sheckherd, and G.R. Odette,ASTM STP 888 (Philadelphia, PA: ASTM, 1986), p. 112.Google Scholar
- 8.A. Zarei-Hanzaki, “Transformation Characteristics of Si−Mn TRIP Steels After Thermomechanical Processing,” Ph.D. thesis, McGill University (1994).Google Scholar
- 10.F.B. Pickering,Physical Metallurgy and the Design of Steels (London: Applied Science, 1978), p. 112.Google Scholar