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High ductility of ultrafine-grained steel via phase transformation

Published online by Cambridge University Press:  31 January 2011

S. Cheng ,
H. Choo ,
Y.H. Zhao ,
X-L. Wang ,
Y.T. Zhu ,
Y.D. Wang ,
J. Almer ,
P.K. Liaw ,
J.E. Jin  and
Y.K. Lee
S. Cheng
Affiliation:
Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996; and Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
H. Choo*
Affiliation:
Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996; and Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Y.H. Zhao
Affiliation:
Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
X-L. Wang
Affiliation:
Neutron Scattering Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Y.T. Zhu
Affiliation:
Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
Y.D. Wang
Affiliation:
Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996
J. Almer
Affiliation:
Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439
P.K. Liaw
Affiliation:
Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996
J.E. Jin
Affiliation:
Department of Metallurgical Engineering, Yonsei University, Seoul 120-749, Korea
Y.K. Lee*
Affiliation:
Department of Metallurgical Engineering, Yonsei University, Seoul 120-749, Korea
*
a)e-mail: hchoo@utk.edu
b)e-mail: yklee@yonsei.ac.kr
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Abstract

There is often a tradeoff between strength and ductility, and the low ductility of ultrafine-grained (UFG) materials has been a major obstacle to their practical structural applications despite their high strength. In this study, we have achieved a ∼40% tensile ductility while increasing the yield strength of FeCrNiMn steel by an order of magnitude via grain refinement and deformation-induced martensitic phase transformation. The strain-rate effect on the inhomogeneous deformation behavior and phase transformation was studied in detail.

Keywords

Grain sizePhase transformationStrength
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 6 , June 2008 , pp. 1578 - 1586
Copyright
Copyright © Materials Research Society 2008

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References

REFERENCES

1Valiev, R.Z., Estrin, Y., Horita, Z., Langdon, T.G., Zehetbauer, M.J.Zhu, Y.T.: Producing bulk ultrafine-grained materials by severe plastic deformation. JOM 58, 33 2006CrossRefGoogle Scholar
2Nieman, G.W., Weertman, J.R.Siegel, R.W.: Microhardness of nanocrystalline palladium and copper produced by inert-gas condensation. Scripta Metall. 23, 2013 1989CrossRefGoogle Scholar
3Lu, L., Shen, Y.F., Chen, X.H., Qian, L.H.Lu, K.: Ultrahigh strength and high electrical conductivity in copper. Science 304, 422 2004CrossRefGoogle ScholarPubMed
4Li, H.Q.Ebrahimi, F.: Tensile behavior of a nanocrystalline Ni–Fe alloy. Acta Mater. 54, 2877 2006CrossRefGoogle Scholar
5Youssef, K.M., Scattergood, R.O., Murty, K.L., Horton, J.A.Koch, C.C.: Ultrahigh strength and high ductility of bulk nanocrystalline copper. Appl. Phys. Lett. 87, 091904 2005CrossRefGoogle Scholar
6Cheng, S., Ma, E., Wang, Y.M., Kecskes, L.J., Youssef, K.M., Koch, C.C., Trociewitz, U.P.Han, K.: Tensile properties of in situ consolidated nanocrystalline Cu. Acta Mater. 53, 1521 2005CrossRefGoogle Scholar
7Wang, Y.M.Ma, E.: Three strategies to achieve uniform tensile deformation in a nanostructured metal. Acta Mater. 52, 1699 2004CrossRefGoogle Scholar
8Zhao, M.C., Yin, F.X., Hanamura, T., Nagai, K.Atrens, A.: Relationship between yield strength and grain size for a bimodal structural ultrafine-grained ferrite/cementite steel. Scripta Mater. 57, 857 2007CrossRefGoogle Scholar
9Song, R., Ponge, D.Raabe, D.: Improvement of the work hardening rate of ultrafine grained steels through second phase particles. Scripta Mater. 52, 1075 2005CrossRefGoogle Scholar
10Ohmori, A., Torizuka, S.Nagai, K.: Strain-hardening due to dispersed cementite for low carbon ultrafine-grained steels. ISIJ Inter. 44, 1063 2004CrossRefGoogle Scholar
11Lee, Y.K., Jin, J.E.Ma, Y.Q.: Transformation-induced extraordinary ductility in an ultrafine-grained alloy with nanosized precipitates. Scripta Mater. 57, 707 2007CrossRefGoogle Scholar
12Zhou, Y.Z., Zhang, W., Wang, B.Q., He, G.H.Guo, J.D.: Grain refinement and formation of ultrafine-grained microstructure in a low-carbon steel under electropulsing. J. Mater. Res. 17, 2105 2002CrossRefGoogle Scholar
13Tsuji, N., Ueji, R., Minamino, Y.Saito, Y.: A new and simple process to obtain nano-structured bulk low-carbon steel with superior mechanical property. Scripta Mater. 46, 305 2002CrossRefGoogle Scholar
14Sugimoto, K., Usui, N., Kobayashi, M.Hashimoto, S.: Effects of volume fraction and stability of retained austenite on ductility of TRIP-aided dual-phase steels. ISIJ Int. 32, 1311 1992CrossRefGoogle Scholar
15Matsumura, O., Sakuma, Y.Takechi, H.: TRIP and its kinetic aspects in austempered 0.4C–1.5Si–0.8Mn steel. Scripta Metall. 21, 1301 1987CrossRefGoogle Scholar
16Ma, Y.Q., Jin, J.E.Lee, Y.K.: A repetitive thermomechanical process to produce nano-crystalline in a metastable austenitic steel. Scripta Mater. 52, 1311 2005CrossRefGoogle Scholar
17Ma, Y.Q., Jin, J.E.Lee, Y.K.: Grain refinement and mechanical properties of a metastable austenitic Fe–Cr–Ni–Mn alloy. Mater. Sci. Forum 475, 43 2005CrossRefGoogle Scholar
18Huang, J.Y., Zhu, Y.T., Jiang, H.G.Lowe, T.C.: Microstructures and dislocation configurations in nanostructured Cu processed by repetitive corrugation and straightening. Acta Mater. 49, 1497 2001CrossRefGoogle Scholar
19Tao, K., Choo, H., Li, H., Clausen, B., Jin, J.E.Lee, Y.K.: Transformation-induced plasticity in an ultrafine-grained steel: An in situ neutron diffraction study. Appl. Phys. Lett. 90, 101911 2007CrossRefGoogle Scholar
20Bouquerel, J., Verbeken, K.de Cooman, B.C.: Microstructure-based model for the static mechanical behaviour of multiphase steels. Acta Mater. 54, 1443 2006CrossRefGoogle Scholar
21Duckham, A., Zhang, D.Z., Liang, D., Luzin, V., Cammarata, R.C., Leheny, R.L., Chien, C.L.Weihs, T.P.: Temperature dependent mechanical properties of ultra-fine grained FeCo–2V. Acta Mater. 51, 4083 2003CrossRefGoogle Scholar
22Xie, S.J., Liaw, P.K.Choo, H.: Tensile behavior and deformation mechanisms of bulk ultrafine-grained copper. J. Mater. Sci. 41, 6328 2006CrossRefGoogle Scholar
23Hasnaoui, A., Van Swygenhoven, H.Derlet, P.M.: Dimples on nanocrystalline fracture surfaces as evidence for shear plane formation. Science 300, 1550 2003CrossRefGoogle ScholarPubMed
24Wang, Y.M., Ma, E.Chen, M.W.: Enhanced tensile ductility and toughness in nanostructured Cu. Appl. Phys. Lett. 80, 2395 2002CrossRefGoogle Scholar
25Kumar, K.S., Van Swygenhoven, H.Suresh, S.: Mechanical behavior of nanocrystalline metals and alloys. Acta Mater. 51, 5743 2003CrossRefGoogle Scholar