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Novel ultrahigh-strength nanolath martensitic steel by quenching–partitioning–tempering process

Published online by Cambridge University Press:  31 January 2011

X.D. Wang ,
N. Zhong ,
Y.H. Rong ,
T.Y. Hsu (Z.Y. Xu)  and
L. Wang
X.D. Wang
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
N. Zhong
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Y.H. Rong*
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
T.Y. Hsu (Z.Y. Xu)
Affiliation:
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
L. Wang
Affiliation:
Baosteel Research and Development Technology Center, Shanghai 201900, China
*
a) Address all correspondence to this author. e-mail: yhrong@sjtu.edu.cn
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Abstract

A modified heat treatment process designated quenching–partitioning–tempering (Q–P–T) process is developed based on the quenching and partitioning process proposed by J.G. Speer et al. [Acta Mater.51, 2611 (2003)] and D.K. Matlock et al. [Mater. Sci. Forum426–432, 1089 (2003)]. A Fe–0.485C–1.195Mn–1.185Si–0.98Ni–0.21Nb steel after Q–P–T process satisfies the designed requirement of tensile strength over 2000 MPa and elongation over 10%. The microstructure characterization indicates that this ultrahigh-strength steel consists of nanomicrostructures including lath martensite, filmlike retained austenite, and dispersive Nb-containing carbides. The effect of tempering time on the mechanical properties is analyzed based on microstructures.

Keywords

MicrostructureStrengthTransmission electron microscopy (TEM)
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 1 , January 2009 , pp. 260 - 267
Copyright
Copyright © Materials Research Society 2009

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References

REFERENCES

1.Sakuma, Y.: Recent achievements in manufacturing and application of high-strength steel sheets for automotive body structureProc. of International Conference on Advanced High Strength Sheet Steels for Automotive Applications edited by M.A. Baker Association for Iron & Steel Technology Warrendale, PA 2004 11Google Scholar
2.Sugimoto, K., Kobayshi, M., Hashimoto, S.: Ductility and strain-induced transformation in a high strength TRIP-aided dual-phase steel. Metall. Trans. A 23, 3085 1992CrossRefGoogle Scholar
3.Leslie, W.C., Rauch, G.G.: Precipitation of carbides in low carbon Fe–Al–C alloys. Metall. Trans. A 9, 343 1978CrossRefGoogle Scholar
4.Wang, X.D., Huang, B.X., Rong, Y.H., Wang, L.: Transformation behavior of retained austenite in TRIP steels under stress. J. Mater. Sci. Technol. 22, 532 2006Google Scholar
5.Girault, E., Mertens, A., Jacques, P., Houbaert, Y., Verlinden, B., Van Humbeeck, J.: Comparison of the effects of silicon and aluminium on the tensile behaviour of multiphase TRIP-assisted steels. Scr. Mater. 44, 885 2001CrossRefGoogle Scholar
6.Caballero, F.G., Bhadeshia, H.K.D.H.: Very strong bainite. Curr. Opin. Solid State Mater. 8, 251 2004CrossRefGoogle Scholar
7.Caballero, F.G., Bhadeshia, H.K.D.H., Mawella, J.A., Jones, D.G., Brown, P.: Very strong low temperature bainite. Mater. Sci. Technol. 18, 279 2002CrossRefGoogle Scholar
8.Bhadeshia, H.K.D.H.: 52nd Hatfield Memorial Lecture. Large chunks of very strong steel. Mater. Sci. Technol. 21, 1293 2005CrossRefGoogle Scholar
9.Speer, J.G., Matlock, D.K., Cooman, B.C., Schroch, J.G.: Carbon partitioning into austenite after martensite transformation. Acta Mater. 51, 2611 2003CrossRefGoogle Scholar
10.Matlock, D.K., Brautigam, V.E., Speer, J.G.: Application of the quenching and partitioning (Q&P) process to a medium-carbon, high-Si microalloyed bar steel. Mater. Sci. Forum 426–432, 1089 2003CrossRefGoogle Scholar
11.Fan, C.G., Dong, H., Shi, J., Lin, Y.L., Yong, Q.L., Hui, W.J., Wang, M.Q., Weng, Y.Q.: Microstructure and mechanical properties of 2200 MPa grade ultra-high strength low alloy steels. Ordnance Mater. Sci. Eng. 29, 31 2006 (in Chinese)Google Scholar
12.Krauss, G.: Deformation and fracture in martensitic carbon steels tempered at low temperatures. Metall. Trans. B 32, 205 2001CrossRefGoogle Scholar
13.Zhong, N., Wang, X.D., Huang, B.X., Rong, Y.H., Wang, L.: Microstructures and mechanical property of quenched and partitioned Fe–C–Mn–Si steel.Proc. Third Int. Conf. on Advanced Structural Steels edited by the Committee of ICASS Gyeongju Korea 2006 885Google Scholar
14.Hsu, T.Y., Xu, Z.Y.: Design of structure, composition and heat treatment process for high strength steel. Mater. Sci. Forum 561–565, 2283 2007CrossRefGoogle Scholar
15.Wang, X.D., Huang, B.X., Wang, L., Rong, Y.H.: Microstructure and mechanical properties of microalloyed high-strength transformation-induced plasticity steels. Metall. Mater. Trans. A 39, 1 2008CrossRefGoogle Scholar
16.Zhong, N., Wang, X.D., Rong, Y.H., Wang, L.: Interface migration between martensite and austenite during quenching and partitioning (Q&P) process. J. Mater. Sci. Technol. 22, 751 2006Google Scholar
17.Koistinen, D.P., Marburger, R.E.: A general equation prescribing extend of austenite–martensite transformation in pure Fe–C alloys and plain carbon steels. Acta Metall. 7, 59 1959CrossRefGoogle Scholar
18.Speer, J.G., Edmonds, D.V., Rizzo, F.C., Matlock, D.K.: Partitioning of carbon from supersaturated plates of ferrite, with application to steel processing and fundamentals of the bainite transformation. Curr. Opin. Solid State Mater. Sci. 8, 219 2004CrossRefGoogle Scholar
19.Rizzo, F.C., Edmonds, D.V., He, K., Speer, J.G., Matlock, D.K., Clarke, A.: Carbon enrichment of austenite and carbide precipitation during the quenching and partitioning (Q&P) process.Solid-solid Phase Transformations in Inorganic Materials edited by J.M. Howe, D.E. Laughlin, J.K. Lee, U. Dahmen, and W.A. Soffa TMS Warrendale, PA 2005 535Google Scholar
20.Edmonds, D.V., He, K., Rizzo, F.C., De Cooman, B.C., Matlock, D.K., Speer, J.G.: Quenching and partitioning martensite—A novel steel heat treatment. Mater. Sci. Eng., A 438–440, 25 2006CrossRefGoogle Scholar
21.Rizzo, F., Martins, A.R., Speer, J.G., Matlock, D., Clarke, A., De Cooman, B.: Quenching and partitioning of Ni-added high strength steels. Mater. Sci. Forum 539–543, 4476 2007CrossRefGoogle Scholar
22.Zhang, L.C., Lu, H.B., Mickel, C., Eckert, J.: Ductile ultrafine-grained Ti-based alloys with high yield strength. Appl. Phys. Lett. 91, 051906 2007CrossRefGoogle Scholar
23.Rao, B.V.N., Thomas, G.: Structure-property relations and the design of Fe–4Cr–C base structural steels for high strength and toughness. Metall. Trans. A 11, 441 1980CrossRefGoogle Scholar
24.Clarke, A.J., Speer, J.P., Miller, M.K., Hackenberg, R.E., Edmonds, D.V., Matlock, D.K., Rizzo, F.C., Clarke, K.D., De Moor, E.: Carbon partitioning to austenite from martensite or bainite during the quench and partition (Q&P) process: A critical assessment. Acta Mater. 56, 16 2008CrossRefGoogle Scholar
25.Zhang, L.C., Das, J., Lu, H.B., Duhamel, C., Calina, M., Eckert, J.: High strength Ti–Fe–Sn ultrafine composites with large plasticity. Scr. Mater. 57, 101 2007CrossRefGoogle Scholar