Microstructure and Mechanical Properties of 0.15C-1.5Mn-0.3Si Steel Treated by Quenching and Partitioning Process

Article Preview

Abstract:

In this paper, the microstructure and mechanical properties of 0.15C-1.5Mn-0.3Si steels after quenching and partitioning (Q&P) process was studied. The microstructure of experimental steels was characterized by optical microscope (OM), scan electron microscope (SEM), transmission electron microscope (TEM) and X-ray diffraction (XRD), and mechanical properties were performed through uni-axial tensile tests. The microstructure evolution during Q&P process was also discussed together with mechanical properties. The investigated steels show excellent strength and ductility product of 10.76GPa% with retained austenite content of 11.08%. The microstructure mainly consists of lath martensite and retained austenite at room temperature, which promotes persistent work hardening during deformation.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

69-72

Citation:

Online since:

December 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] J. Speer, D.K. Matlock, B.C. Decooman, J.G. Schroth. Acta Materialia, 2003, 51, 2611.

Google Scholar

[2] N. Tsuji, T. Maki. Scripta Materialia, 2009, 60, 1046.

Google Scholar

[3] T. Tsuchiyama, J. Tobata, T. Tao, N. Nakada, S. Takaki. Materials Science and Engineering A, 2012, 532, 587.

Google Scholar

[4] K. Zhang, M.H. Zhang, Z.H. Guo, N.L. Chen, Y.H. Rong. Matreials Science and Engineering A, 2011, 528, 8489.

Google Scholar

[5] X. Chen, Y.X. Li. Materials Science and Engineering A, 2007, 444, 300.

Google Scholar

[6] H. Zhao, J. Shi, N. Li, C.Y. Wang, J. Hu, W.J. Hui, W.Q. Cao. Chinese Journal of Materials Research2011, 25, 48.

Google Scholar

[7] H.Y. Li, X.W. Lu, W.J. Li, X.J. Jin. Metallurgical and Materials Transactions A, 2010, 41, 1288.

Google Scholar

[8] C.N. Jing, D.W. Suh, C.S. Oh, Z.C. Wang, S.J. Kim. Metals and Materials International, 2007, 13, 15.

Google Scholar

[9] H.F. Yang, L. Wang, W.J. Feng, F.G. Lu. Material & Heat Treatment, 2011, 40, 150.

Google Scholar