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Microstructure evolution and martensitic transformation behaviors of 9Cr–1.8W–0.3Mo ferritic heat-resistant steel during quenching and partitioning treatment

Published online by Cambridge University Press:  09 October 2013

Linqing Xu ,
Zesheng Yan ,
Yongchang Liu ,
Huijun Li ,
Baoqun Ning  and
Zhixia Qiao
Linqing Xu
Affiliation:
State Key Lab of Hydaulic Engineering Simulation and Safety, School of Materials Science and Engineering, Department of Metallic Materials Science & Engineering, Tianjin University, Tianjin 30072, People's Republic of China
Zesheng Yan
Affiliation:
State Key Lab of Hydaulic Engineering Simulation and Safety, School of Materials Science and Engineering, Department of Metallic Materials Science & Engineering, Tianjin University, Tianjin 30072, People's Republic of China
Yongchang Liu*
Affiliation:
State Key Lab of Hydaulic Engineering Simulation and Safety, School of Materials Science and Engineering, Department of Metallic Materials Science & Engineering, Tianjin University, Tianjin 30072, People's Republic of China
Huijun Li
Affiliation:
State Key Lab of Hydaulic Engineering Simulation and Safety, School of Materials Science and Engineering, Department of Metallic Materials Science & Engineering, Tianjin University, Tianjin 30072, People's Republic of China
Baoqun Ning
Affiliation:
School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, People's Republic of China
Zhixia Qiao
Affiliation:
School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, People's Republic of China
*
a)Address all correspondence to this author. e-mail: licmtju@163.com
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Abstract

The advanced quenching and partitioning (Q&P) heat treatment has been applied to 9Cr–1.8W–0.3Mo heat resistant steel. The phase transformation during Q&P is measured by a high-resolution differential dilatometer by which the accurate information can be obtained. The transmission electron microscope examination was conducted to study the microstructure evolution after Q&P, and the refined carbon-enriched martensite laths, which were produced during the second martensitic transformation, were observed. The thermodynamics of carbon partitioning was described by a paraequilibrium model according to which the partitioning of carbon from martensite into austenite can be proved. A kinetic model for the second martensitic transformation was developed with the parameters discussed in details. The retardation of onset and end temperature of the second martensitic transformation can be ascribed to the austenite stabilization caused by carbon enrichment.

Keywords

microstructurephase transformationsteel
Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 20 , 28 October 2013 , pp. 2835 - 2843
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

Ennis, P. and Czyrska-Filemonowicz, A.: Recent advances in creep-resistant steels for power plant applications. Sadhana 28(3–4), 709 (2003).CrossRefGoogle Scholar
Ning, B.Q., Shi, Q.Z., Yan, Z.S., Fu, J.C., Liu, Y.C., and Bie, L.J.: Variation of martensite phase transformation mechanism in minor-stressed T91 ferritic steel. J. Nucl. Mater. 393(1), 54 (2009).CrossRefGoogle Scholar
Zhao, L., Jing, H., Xu, L., An, J., Xiao, G., Xu, D., Chen, Y., and Han, Y.: Investigation on mechanism of type IV cracking in P92 steel at 650° C. J. Mater. Res. 26(7), 934 (2011).CrossRefGoogle Scholar
Shanthraj, P. and Zikry, M.: The effects of microstructure and morphology on fracture nucleation and propagation in martensitic steel alloys. Mech. Mater. (2012).Google Scholar
Lu, Z., Faulkner, R., Riddle, N., Martino, F., and Yang, K.: Effect of heat treatment on microstructure and hardness of Eurofer 97, Eurofer ODS and T92 steels. J. Nucl. Mater. 386, 445 (2009).CrossRefGoogle Scholar
Abe, F.: Effect of quenching, tempering, and cold rolling on creep deformation behavior of a tempered martensitic 9Cr-1W steel. Metall. Mater. Trans. A 34(4), 913 (2003).CrossRefGoogle Scholar
Abe, F.: Precipitate design for creep strengthening of 9% Cr tempered martensitic steel for ultra-supercritical power plants. Sci. Technol. Adv. Mater. 9(1), 013002 (2008).CrossRefGoogle ScholarPubMed
Edmonds, D., He, K., Rizzo, F., De Cooman, B., Matlock, D., and Speer, J.: Quenching and partitioning martensite: A novel steel heat treatment. Mater. Sci. Eng., A 438, 25 (2006).CrossRefGoogle Scholar
Li, H., Lu, X., Wu, X., Min, Y., and Jin, X.: Bainitic transformation during the two-step quenching and partitioning process in a medium carbon steel containing silicon. Mater. Sci. Eng., A 527(23), 6255 (2010).CrossRefGoogle Scholar
Clarke, A., Speer, J., Miller, M., Hackenberg, R., Edmonds, D., Matlock, D., Rizzo, F., Clarke, K., and 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(1), 16 (2008).CrossRefGoogle Scholar
De Moor, E., Lacroix, S., Clarke, A., Penning, J., and Speer, J.: Effect of retained austenite stabilized via quench and partitioning on the strain hardening of martensitic steels. Metall. Mater. Trans. A 39(11), 2586 (2008).CrossRefGoogle Scholar
Kobayashi, J., Song, S-M., and Sugimoto, K-I.: Microstructure and retained austenite characteristics of ultra high-strength TRIP-aided martensitic steels. ISIJ Int. 52(6), 1124 (2012).CrossRefGoogle Scholar
Kühn, U., Romberg, J., Mattern, N., Wendrock, H., and Eckert, J.: Transformation-induced plasticity in Fe-Cr-VC. J. Mater. Res. 25(2), 368 (2010).CrossRefGoogle Scholar
Speer, J.G., Edmonds, D.V., Rizzo, F.C., and 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(3), 219 (2004).CrossRefGoogle Scholar
Liu, Y., Sommer, F., and Mittemeijer, E.J.: Abnormal austenite–ferrite transformation behaviour in substitutional Fe-based alloys. Acta Mater. 51(2), 507 (2003).CrossRefGoogle Scholar
Mittemeijer, E.J.: Fundamentals of Materials Science: The Microstructure–Property Relationship Using Metals as Model Systems (Springer-Verlag, Heidelberg, 2010).Google Scholar
Wang, X., Zhong, N., Rong, Y., Hsu, T., and Wang, L.: Novel ultrahigh-strength nanolath martensitic steel by quenching–partitioning–tempering process. J. Mater. Res. 24(1), 261 (2009).Google Scholar
Chen, H., Appolaire, B., and van der Zwaag, S.: Application of cyclic partial phase transformations for identifying kinetic transitions during solid-state phase transformations: Experiments and modeling. Acta Mater. 59(17), 6751 (2011).CrossRefGoogle Scholar
Speer, J., Matlock, D., De Cooman, B., and Schroth, J.: Carbon partitioning into austenite after martensite transformation. Acta Mater. 51(9), 2611 (2003).CrossRefGoogle Scholar
Hultgren, A.: Isothermal transformation of austenite. Trans. ASM. 39(973), 54 (1947).Google Scholar
Apple, C., Caron, R., and Krauss, G.: Packet microstructure in Fe-0.2 pct C martensite. Metall. Mater. Trans. B 5(3), 593 (1974).CrossRefGoogle Scholar
Guimarães, J. and Rios, P.: Unified model for plate and lath martensite with athermal kinetics. Metall. Mater. Trans. A 41(8), 1928 (2010).CrossRefGoogle Scholar
Morito, S., Saito, H., Ogawa, T., Furuhara, T., and Maki, T.: Effect of austenite grain size on the morphology and crystallography of lath martensite in low carbon steels. ISIJ Int. 45(1), 91 (2005).CrossRefGoogle Scholar
Gao, Q.Z., Liu, Y.C., Di, X.J., Yu, L.M., and Yan, Z.S.: Martensite transformation in the modified high Cr ferritic heat-resistant steel during continuous cooling. J. Mater. Res. 27(21), 2779 (2012).CrossRefGoogle Scholar
Avrami, M.: Kinetics of phase change. I. General theory. J. Chem. Phys. 7, 1103 (1939).CrossRefGoogle Scholar
Avrami, M.: Kinetics of phase change. II: Transformation-time relations for random distribution of nuclei. J. Chem. Phys. 8, 212 (1940).CrossRefGoogle Scholar
Van Bohemen, S. and Sietsma, J.: Martensite formation in partially and fully austenitic plain carbon steels. Metall. Mater. Trans. A 40(5), 1059 (2009).CrossRefGoogle Scholar
Foroozmehr, F., Najafizadeh, A., and Shafyei, A.: Effects of carbon content on the formation of nano/ultrafine grained low-carbon steel treated by martensite process. Mater. Sci. Eng., A 528(18), 5754 (2011).CrossRefGoogle Scholar
Bowles, J. and Dunne, D.: The role of plastic accommodation in the (225) martensite transformation. Acta Metall. 17(5), 677 (1969).CrossRefGoogle Scholar
Bokros, J. and Parker, E.: The mechanism of the martensite burst transformation in Fe–Ni single crystals. Acta Metall. 11(12), 1291 (1963).CrossRefGoogle Scholar
Ren, X., Miura, N., Zhang, J., Otsuka, K., Tanaka, K., Koiwa, M., Suzuki, T., Chumlyakov, Y.I., and Asai, M.: A comparative study of elastic constants of Ti–Ni-based alloys prior to martensitic transformation. Mater. Sci. Eng., A 312(1), 196 (2001).CrossRefGoogle Scholar