Microstructures, Mechanical Properties, and Strain Hardening Behavior of an Ultrahigh Strength Dual Phase Steel Developed by Intercritical Annealing of Cold-Rolled Ferrite/Martensite
作者： Y. Mazaheri , A. Kermanpur , A. Najafizadeh
DOI: 10.1007/S11661-015-2918-0
关键词:
摘要: A dual phase (DP) steel was produced by a new process utilizing an uncommon cold-rolling and subsequent intercritical annealing of martensite–ferrite duplex starting structure. Ultrafine grained DP steels with average grain size about 2 μm chain-networked martensite islands were achieved short the 80 pct cold-rolled microstructure. The strength low carbon microstructure reached 1300 MPa (140 higher than that as-received state, e.g., 540 MPa), without loss ductility. Tensile testing revealed good strength–elongation balance for (UTS × UE ≈ 11,000 to 15,000 pct) in comparison previous works commercially used high steels. Two strain hardening stages comparable exponents observed Holloman analysis all variations hardness, strength, elongation, behavior specimens thermomechanical parameters correlated microstructural features.
springer.com
harvard.edu
sci-hub.se 参考文章(47)
Nobuhiro Tsuji, Ways to Manage Both Strength and Ductility in Nanostructured Steels Springer, Berlin, Heidelberg. pp. 119- 129 ,(2011) , 10.1007/978-3-642-17665-4_15
Chang Peng-Heng, A.G. Preban, The effect of ferrite grain size and martensite volume fraction on the tensile properties of dual phase steel Acta Metallurgica. ,vol. 33, pp. 897- 903 ,(1985) , 10.1016/0001-6160(85)90114-2
Ilana B. Timokhina, E. V. Pereloma, S. P. Ringer, R. K. Zheng, P. D. Hodgson, Characterization of the bake-hardening behavior of transformation induced plasticity and dual-phase steels using advanced analytical techniques Isij International. ,vol. 50, pp. 574- 582 ,(2010) , 10.2355/ISIJINTERNATIONAL.50.574
M.A. Maleque, Y.M. Poon, H.H. Masjuki, The effect of intercritical heat treatment on the mechanical properties of AISI 3115 steel Journal of Materials Processing Technology. ,vol. 153, pp. 482- 487 ,(2004) , 10.1016/J.JMATPROTEC.2004.04.391
E. Heinz, H.P. Dieler, J. Rullkötter, Enzymatic acylation of steryl glycoside Zeitschrift für Pflanzenphysiologie. ,vol. 75, pp. 78- 87 ,(1975) , 10.1016/S0044-328X(75)80077-8
J. Lian, Z. Jiang, J. Liu, Theoretical model for the tensile work hardening behaviour of dual-phase steel Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 147, pp. 55- 65 ,(1991) , 10.1016/0921-5093(91)90804-V
K-T Park, SY Han, BD Ahn, DH Shin, YK Lee, KK Um, None, Ultrafine grained dual phase steel fabricated by equal channel angular pressing and subsequent intercritical annealing Scripta Materialia. ,vol. 51, pp. 909- 913 ,(2004) , 10.1016/J.SCRIPTAMAT.2004.06.017
Z. Fan, A.P. Miodownik, An empirical approach to strain to fracture of two-ductile-phase alloys Scripta Metallurgica et Materialia. ,vol. 28, pp. 895- 900 ,(1993) , 10.1016/0956-716X(93)90052-T
T. Sakaki, K. Sugimoto, T. Fukuzato, Role of internal stress for continuous yielding of dual-phase steels Acta Metallurgica. ,vol. 31, pp. 1737- 1746 ,(1983) , 10.1016/0001-6160(83)90172-4
Yoshitaka Okitsu, Naoki Takata, Nobuhiro Tsuji, A new route to fabricate ultrafine-grained structures in carbon steels without severe plastic deformation Scripta Materialia. ,vol. 60, pp. 76- 79 ,(2009) , 10.1016/J.SCRIPTAMAT.2008.09.002