Abstract
This article addresses an investigation of the influence of plastic deformation on low-temperature surface hardening by gaseous nitriding of two commercial stainless steels: EN 1.4369 and AISI 304. The materials were plastically deformed to several levels of equivalent strain by conventional tensile straining, plane strain compression, and shear. Gaseous nitriding of the strained material was performed in ammonia gas at atmospheric pressure at various temperatures. Microstructural characterization of the as-deformed state and the nitrided case produced included X-ray diffraction analysis, reflected-light microscopy, and microhardness testing. The results demonstrate that a case of expanded austenite develops and that the presence of plastic deformation has a significant influence on the morphology of the nitrided case. The presence of strain-induced martensite favors the formation of CrN, while a high dislocation density in a fully austenitic structure does not lead to such premature nucleation of CrN.
Similar content being viewed by others
Notes
This alloy has no AISI equivalent, but in composition is close to AISI 201.
Since this ferrite is not a result of a martensitic transformation of austenite, but rather a thermally activated decomposition product, it is not referred to as martensite. Nonetheless, it cannot be excluded that nitrogen dissolves into ferrite and leads to a tetragonal distortion of the b.c.c. lattice.
In this respect, it is noted that the deformation response upon uniaxial tension and plane stress compression are essentially equivalent.
References
Z.I. Zhang and T. Bell: Surf. Eng., 1985, vol. 1, pp. 131–36.
T. Bell, K. Mao, and Y. Sun: Surf. Coat. Technol., 1998, vol. 108–109, pp. 360–68.
J.W. Simmons: Mater. Sci. Eng. A, 1996, vol. 207, pp. 159–69.
R.P. Reed: JOM, 1989, vol. 41, pp. 16–21.
D.L. Williamson, O. Ozturk, R. Wei, and P.J. Wilbur: Surf. Coat. Technol., 1994, vol. 65, pp. 15–23.
Z. Yu, X. Xu, L. Wang, J. Qiang, and Z. Hei: Surf. Coat. Technol., 2002, vol. 153, pp. 125–30.
X. Xu, L. Wang, Z. Yu, J. Qiang, and Z. Hei: Metall. Mater. Trans. A, 2000, vol. 31A, pp. 1193–99.
H. Dong: Int. Mater. Rev., 2010, vol. 55, pp. 65–98.
T.L. Christiansen and M.A.J. Somers: Int. J. Mater. Res. Former. Zeitschrift Fuer Met., 2009, vol. 100, pp. 1361–77.
T.L. Christiansen, T.S. Hummelshøj, and M.A.J. Somers: Surf. Eng., 2010, vol. 26, pp. 242–47.
T.L. Christiansen and M.A.J. Somers: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 675–82.
Y. Cao, F. Ernst, and G.M Michal: Acta Mater., 2003, vol. 51, pp. 4171–81.
Y. Sun and T. Bell: Wear, 1998, vol. 218, pp. 34–42.
C.X. Li, and T. Bell: Corros. Sci., 2004, vol. 46, pp. 1527–47.
M.K. Lei and X.M. Zhu: Surf. Coat. Technol., 2005, vol. 193, pp. 22–28.
W. Liang, X. Bin, Y. Zhiwei, and S. Yaqin: Surf. Coat. Technol., 2000, vol. 130, pp. 304–308.
T. Thiriet, T. Czerwiec, D. Hertz, G. Marcos, T. Toll-Duchanoy, S. Migot, B. Brugier, M. Foucault, and T. Belmonte: Defect Diffus. Forum, 2012, vol. 323-325, pp. 471–76.
M. Chemkhi, D. Retraint, A. Roos, C. Garnier, L. Waltz, C. Demangel, and G. Proust: Surf. Coat. Technol., 2013, vol. 221, pp. 191–95.
T. Balusamy, T.S.N. Sankara Narayanan, K. Ravichandran, I.S. Park, and M.H. Lee: Corros. Sci., 2013, vol. 74, pp. 332–44.
Standard Test Methods for Tension Testing of Metallic Materials, E8M-04: ASTM International, United States, 2013.
J. Post: Report RFSR-CT-2012-00021, Drachten/Netherlands, 2013, p. D 3.1.
G.W. Rowe: Elements of Metalworking Theory, Hodder Arnold, London, 1979, p. 144.
Th.H. de Keijser, J.I. Langford, E.J. Mittemeijer, and B.P. Vogels: J. Appl. Crystallogr., 1982, vol. 15, pp. 308–14.
J.I. Langford: J. Appl. Crystallogr., 1978, vol. 11, pp. 10–14.
C. Templier, J.C. Stinville, P. Villechaise, P.O. Renault, G. Abrasonis, J.P. Rivière, A. Martinavičius, and M. Drouet: Surf. Coat. Technol., 2010, vol. 204, pp. 2551–58.
J.O. Nilsson, A. Hultin Stigenberg, and P. Liu: Metall. Mater. Trans. A, 1994, vol. 25A, pp. 2225–33.
T.L. Christiansen, K. V. Dahl, and M.A.J. Somers: Mater. Sci. Technol., 2008, vol. 24, pp. 159–67.
T.L. Christiansen, and M.A.J. Somers: Metall. Mater. Trans. A, 2008, vol. 40A, pp. 1791–98.
F.A.P. Fernandes, T.L. Christiansen, and M.A.J. Somers: Adv. Mater. Res., 2014, vol. 996, pp. 155–61.
J.L. Meijering: Acta Metall., 1966, vol. 14, pp. 251–58.
K. H. Jack: Acta Crystallogr., 1952, vol. 5, pp. 404–11.
R. Hales and A.C. Hill: Met. Sci., 1977, vol. 11, pp. 241–44.
J.R.G. Da Silva and R.B. McLellan: Mater. Sci. Eng., 1976, vol. 26, pp. 83–87.
K.H. Jack: R. Soc., 1951, vol. 208, pp. 200–15.
M.A.J. Somers, R.M. Lankreijer, and E.J. Mittemeijer: Philos. Mag. A, 1989, vol. 59, pp. 353–78.
Acknowledgments
For the present research work, the authors gratefully acknowledge the Research Fund for Coal and Steel for the financial support to the PressPerfect project. Furthermore, the authors would like to thank Sandvik Materials Technology for providing part of the materials used during the investigation and M2i-University of Twente for providing the shear-deformed samples.
Author information
Authors and Affiliations
Corresponding authors
Additional information
Manuscript submitted September 10, 2014.
Rights and permissions
About this article
Cite this article
Bottoli, F., Winther, G., Christiansen, T.L. et al. Influence of Plastic Deformation on Low-Temperature Surface Hardening of Austenitic Stainless Steel by Gaseous Nitriding. Metall Mater Trans A 46, 2579–2590 (2015). https://doi.org/10.1007/s11661-015-2832-5
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-015-2832-5