Abstract
This study addresses a hydrogen effect on the tensile properties of a type 310S austenitic stainless steel with ultrafine-grained structures produced by high-pressure torsion (HPT) and subsequent annealing. The mean grain size was reduced to ~85 nm by the HPT processing. The grain size was increased by the post-HPT annealing, but the grain size of ~265 nm was retained after annealing at 1023 K (750 °C). The tensile strength of ~1.2 GPa, which is approximately twice as much as that of the solution-treated specimen, was attained in the 1023 K (750 °C) post-HPT-annealed specimen. The elongation to failure was restored up to ~15 pct by the post-HPT annealing, although it was still insufficient in comparison with the ~55 pct elongation of the solution-treated specimen. There was no change in the tensile strength of the HPT-processed specimens and the post-HPT-annealed specimens by hydrogen charging with the hydrogen content in the range of ~20 to 40 mass ppm. The HPT-processed and the 773 K (500 °C) post-HPT-annealed specimens exhibited a ductility loss through the fully shear type fracture. The hydrogen charge into higher temperature post-HPT-annealed specimens with σ-FeCr precipitates led to a mild hydrogen embrittlement.
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References
R.M. Vennett and G.S. Ansell: Trans. Am. Soc. Met., 1967, vol. 60, pp. 242-51.
R.B. Benson Jr., R.K. Dann, and L.W. Roberts Jr.: Trans. TMS-AIME, 1968, vol. 242, pp. 2199–205.
D. Eliezer, D.G. Chakrapani, C.J. Altstetter, and E.N. Pugh: Metall. Trans. A, 1979, vol. 10A, pp. 935-41.
S. Singh and C. Altstetter: Metall. Trans. A, 1982, vol. 13A, pp. 1799-808.
D.G. Ulmer and C.J. Altstetter: Acta Metall. Mater., 1991, vol. 39, pp. 1237-48.
D.P. Abraham and C.J. Altstetter: Metall. Trans. A, 1995, vol. 26A, pp. 2849-58.
D.P. Abraham and C.J. Altstetter: Metall. Trans. A, 1995, vol. 26A, pp. 2859-71.
A.P. Zhilyaev and T.G. Langdon: Prog. Mater. Sci., 2008, vol. 53, pp. 893-979.
R.Z. Valiev, Y. Estrin, Z. Horita, T.G. Langdon, J. Zehetbauer, and Y.T. Zhu: JOM, 2006, vol. 58, pp. 33–39.
Y. Mine, Z. Horita, and Y. Murakami: Acta Mater., 2010, vol. 58, pp. 649-57.
Y. Mine, T. Tsumagari, and Z. Horita: Scripta Mater., 2010, vol. 63, pp. 552–55.
Y. Mine, K. Tachibana, and Z. Horita: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 3110–20.
Y. Mine, Z. Horita, and Y. Murakami: Acta Mater., 2009, vol. 57, pp. 2993-3002.
Y.K. Lee, J.E. Jin, and Y.Q. Ma: Scripta Mater., 2007, vol. 57, pp. 707-10.
A.V. Panin, A.A. Panina, and Y.F. Ivanov: Mater. Sci. Eng. A, 2008, vol. 486, pp. 267-72.
R.J. Price and A. Kelly: Acta Metall., 1964, vol. 12, pp. 979-92.
E. Lunarska and A. Mikeladze: Int. J. Hydrogen Energ., 1997, vol. 22, pp. 131–39.
Acknowledgments
This research was supported by the NEDO, Fundamental Research Project on Advanced Hydrogen Science (2006 to 2012). A part of this research was carried out within the frame of Kyushu University Interdisciplinary Programs in Education and Projects in Research Development (P&P).
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Manuscript submitted August 6, 2010.
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Mine, Y., Tachibana, K. & Horita, Z. Effect of Hydrogen on Tensile Properties of Ultrafine-Grained Type 310S Austenitic Stainless Steel Processed by High-Pressure Torsion. Metall Mater Trans A 42, 1619–1629 (2011). https://doi.org/10.1007/s11661-010-0558-y
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DOI: https://doi.org/10.1007/s11661-010-0558-y