Low-Temperature Carburization of AL-6XN Enabled by Provisional Passivation

Li, Zhen; Illing, Cyprian; Heuer, Arthur H.; Ernst, Frank

doi:10.3390/met8120997

Low-Temperature Carburization of AL-6XN Enabled by Provisional Passivation

Journal Article · Mon Nov 26 23:00:00 EST 2018 · Metals

DOI:https://doi.org/10.3390/met8120997· OSTI ID:1483445

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Employing AISI-AL-6XN as example, we introduce a new method of surface activation for low-temperature carburization. This method consists of two steps: (i) removing the passivating surface oxide and a potentially existing severely plastically deformed surface layer (Beilby layer) by aqueous (liquid) hydrochloric acid, and (ii) immersion in ethanol and subsequent drying in nitrogen. Upon carburization with a gas mixture of acetylene, hydrogen, and nitrogen, this new method of surface activation enables the formation of a fully developed “case”, i.e., a uniform solid solution of interstitial carbon in austenite with carbon fractions up to 0.20 near the alloy surface. The underlying mechanism of surface activation is shown to involve the formation of a provisional passivating layer. It consists of chlorides or ethoxides that are insoluble in ethanol. It prevents the reformation of the regular Cr-rich passivating oxide layer and is readily removed upon heating and exposure to the carburizing gas. As the new activation method is quicker, more effective, and less destructive to furnace hardware than activation with hot gaseous hydrochloric acid that is currently applied in industrial manufacturing, it may have considerable technological impact.

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Sponsoring Organization:: USDOE

OSTI ID:: 1483445

Journal Information:: Metals, Journal Name: Metals Journal Issue: 12 Vol. 8; ISSN MBSEC7; ISSN 2075-4701

Publisher:: MDPI AGCopyright Statement

Country of Publication:: Switzerland

Language:: English

References (33)

Hawley's Condensed Chemical Dictionary Lewis, Richard J. https://doi.org/10.1002/9780470114735	book	March 2007
Analysis of oxide layers on stainless steel (304, and 316) by conversion electron M�ssbauer spectrometry Nomura, Kiyoshi; Ujihira, Yusuke Journal of Materials Science, Vol. 25, Issue 3 https://doi.org/10.1007/BF01045379	journal	March 1990
Preparation of MgFe2O4 nanoparticles by microemulsion method and their characterization Holec, P.; Plocek, J.; Nižňanský, D. Journal of Sol-Gel Science and Technology, Vol. 51, Issue 3 https://doi.org/10.1007/s10971-009-1962-x	journal	April 2009
Paraequilibrium Carburization of Duplex and Ferritic Stainless Steels Michal, G. M.; Gu, X.; Jennings, W. D. Metallurgical and Materials Transactions A, Vol. 40, Issue 8 https://doi.org/10.1007/s11661-009-9826-0	journal	April 2009
Enhanced Carbon Diffusion in Austenitic Stainless Steel Carburized at Low Temperature Ernst, F.; Avishai, A.; Kahn, H. Metallurgical and Materials Transactions A, Vol. 40, Issue 8 https://doi.org/10.1007/s11661-009-9854-9	journal	June 2009
Enhanced Corrosion Resistance of Stainless Steel Carburized at Low Temperature Martin, F. J.; Natishan, P. M.; Lemieux, E. J. Metallurgical and Materials Transactions A, Vol. 40, Issue 8 https://doi.org/10.1007/s11661-009-9924-z	journal	June 2009
The Effect of Surface Finish on Low-Temperature Acetylene-Based Carburization of 316L Austenitic Stainless Steel Ge, Yindong; Ernst, Frank; Kahn, Harold Metallurgical and Materials Transactions B, Vol. 45, Issue 6 https://doi.org/10.1007/s11663-014-0141-9	journal	August 2014
Mechanical design using low-temperature carburization Williams, P. C.; Collins, S. R. JOM, Vol. 60, Issue 12 https://doi.org/10.1007/s11837-008-0161-5	journal	December 2008
Synthesis and reactions of metal alkoxides Mehrotra, R. C. Journal of Non-Crystalline Solids, Vol. 100, Issue 1-3 https://doi.org/10.1016/0022-3093(88)90003-8	journal	March 1988
Carburization and oxidation Grabke, H. J.; Wolf, I. Materials Science and Engineering, Vol. 87 https://doi.org/10.1016/0025-5416(87)90357-0	journal	March 1987
Organic monolayers on Si(111) by electrochemical method Allongue, P.; de Villeneuve, C. Henry; Pinson, J. Electrochimica Acta, Vol. 43, Issue 19-20 https://doi.org/10.1016/S0013-4686(98)00020-6	journal	June 1998
Synthesis and characterization of some chloride alkoxides of chromium(III) and their addition complexes Mehrotra, R. C.; Mahendra, K. N. Inorganica Chimica Acta, Vol. 81 https://doi.org/10.1016/S0020-1693(00)88753-8	journal	January 1984
Thermomechanical response of AL-6XN stainless steel over a wide range of strain rates and temperatures Nemat-Nasser, Sia; Guo, Wei-Guo; Kihl, David P. Journal of the Mechanics and Physics of Solids, Vol. 49, Issue 8 https://doi.org/10.1016/S0022-5096(00)00069-7	journal	August 2001
Carbides in low-temperature-carburized stainless steels Ernst, F.; Cao, Y.; Michal, G. M. Acta Materialia, Vol. 52, Issue 6 https://doi.org/10.1016/j.actamat.2003.11.027	journal	April 2004
Enhanced fatigue resistance in 316L austenitic stainless steel due to low-temperature paraequilibrium carburization Agarwal, N.; Kahn, H.; Avishai, A. Acta Materialia, Vol. 55, Issue 16 https://doi.org/10.1016/j.actamat.2007.06.025	journal	September 2007
Carburization of 310 stainless steel exposed at 800–1100 °C in 2%CH4/H2 gas mixture Yin, Ruchuan Corrosion Science, Vol. 47, Issue 8 https://doi.org/10.1016/j.corsci.2004.09.004	journal	August 2005
Properties of the Passive Film Formed on Interstitially Hardened AISI 316L Stainless Steel Niu, W.; Lillard, R. S.; Li, Z. Electrochimica Acta, Vol. 176 https://doi.org/10.1016/j.electacta.2015.06.102	journal	September 2015
The synthesis of iron (III) ethoxide revisited: Characterization of the metathesis products of iron (III) halides and sodium ethoxide Seisenbaeva, Gulaim A.; Gohil, Suresh; Suslova, Evgeniya V. Inorganica Chimica Acta, Vol. 358, Issue 12 https://doi.org/10.1016/j.ica.2005.03.048	journal	August 2005
Background of SAM atom-fraction profiles Ernst, Frank Materials Characterization, Vol. 125 https://doi.org/10.1016/j.matchar.2017.01.034	journal	March 2017
Monomeric metal hydroxides, alkoxides, and amides of the late transition metals: synthesis, reactions, and thermochemistry Bryndza, Henry E.; Tam, Wilson Chemical Reviews, Vol. 88, Issue 7 https://doi.org/10.1021/cr00089a009	journal	November 1988
Chromium(II) alkoxides: synthesis and crystal structure of the monomeric [(RO)4Cr][Na(TMEDA)]2 (R = 2,6-dimethylphenyl) and dimeric [(RO)8Cr2][NaL]4 (R = phenyl; L = THF, pyridine) without a chromium-chromium bond. An insight into the question of chromium-chromium quadruple bond formation Edema, Jilles J. H.; Gambarotta, Sandro; Van Bolhuis, Fre Journal of the American Chemical Society, Vol. 111, Issue 6 https://doi.org/10.1021/ja00188a030	journal	March 1989
Oxygen diffusivities in organic liquids at 293.2 K Schumpe, Adrian; Luehring, Petra Journal of Chemical & Engineering Data, Vol. 35, Issue 1 https://doi.org/10.1021/je00059a007	journal	January 1990
The Beilby Layer Finch, G. I.; Quarrell, A. G. Nature, Vol. 137, Issue 3465 https://doi.org/10.1038/137516a0	journal	March 1936
Studies of chromium(III) alkoxides Brown, David A.; Cunningham, D.; Glass, W. K. Journal of the Chemical Society A: Inorganic, Physical, Theoretical https://doi.org/10.1039/j19680001563	journal	January 1968
Ideal hydrogen termination of the Si (111) surface Higashi, G. S.; Chabal, Y. J.; Trucks, G. W. Applied Physics Letters, Vol. 56, Issue 7 https://doi.org/10.1063/1.102728	journal	February 1990
The Solubility of Oxygen and Ozone in Liquids Battino, Rubin; Rettich, Timothy R.; Tominaga, Toshihiro Journal of Physical and Chemical Reference Data, Vol. 12, Issue 2 https://doi.org/10.1063/1.555680	journal	April 1983
Dislocation Theory of Yielding and Strain Ageing of Iron Cottrell, A. H.; Bilby, B. A. Proceedings of the Physical Society. Section A, Vol. 62, Issue 1 https://doi.org/10.1088/0370-1298/62/1/308	journal	January 1949
Effect of the stress field of an edge dislocation on carbon diffusion in α -iron: Coupling molecular statics and atomistic kinetic Monte Carlo Veiga, R. G. A.; Perez, M.; Becquart, C. S. Physical Review B, Vol. 82, Issue 5 https://doi.org/10.1103/PhysRevB.82.054103	journal	August 2010
The thermodynamic characteristics of sublimation of chromium trichloride Titov, V. A.; Grinberg, E. E. Russian Journal of Physical Chemistry, Vol. 80, Issue 5 https://doi.org/10.1134/S0036024406050049	journal	May 2006
Carburization-Induced Passivity of 316 L Austenitic Stainless Steel Martin, F. J.; Lemieux, E. J.; Newbauer, T. M. Electrochemical and Solid-State Letters, Vol. 10, Issue 12 https://doi.org/10.1149/1.2794282	journal	January 2007
Wear maps for low temperature carburised 316L austenitic stainless steel sliding against alumina O'Donnell, L. J.; Michal, G. M.; Ernst, F. Surface Engineering, Vol. 26, Issue 4 https://doi.org/10.1179/026708410X12550773057901	journal	May 2010
Gaseous carburising of self-passivating Fe–Cr–Ni alloys in acetylene–hydrogen mixtures Christiansen, T. L.; Hummelshøj, T. S.; Somers, M. A. J. Surface Engineering, Vol. 27, Issue 8 https://doi.org/10.1179/1743294411Y.0000000006	journal	September 2011
“Conjugate Channeling” Effect in Dislocation Core Diffusion: Carbon Transport in Dislocated BCC Iron Ishii, Akio; Li, Ju; Ogata, Shigenobu PLoS ONE, Vol. 8, Issue 4 https://doi.org/10.1371/journal.pone.0060586	journal	April 2013

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