Steel showing twinning-induced plasticity processed by selective laser melting — An additively manufactured high performance material

Abstract Austenitic high-manganese steel showing twinning-induced plasticity has been processed by selective laser melting. In the as-built condition without any post-processing the steel shows excellent mechanical properties featuring high strength, good ductility and extraordinary strain hardening. Microstructural analyses revealed a fully austenitic microstructure upon processing exhibiting elongated grains and a pronounced texture. Deformation twins are observed upon tensile testing, proving that additive manufacturing is well suited for processing of high-manganese steels.

[1]  S. K. Kim,et al.  Orientation dependence of twinning and strain hardening behaviour of a high manganese twinning induced plasticity steel with polycrystalline structure , 2011 .

[2]  Tim Caffrey,et al.  Wohlers report 2013 : additive manufacturing and 3D printing state of the industry : annual worldwide progress report , 2013 .

[3]  H. Maier,et al.  In situ characterization of the deformation and failure behavior of non-stochastic porous structures processed by selective laser melting , 2011 .

[4]  D. Raabe,et al.  Grain size effect on strain hardening in twinning-induced plasticity steels , 2012 .

[5]  Claus Emmelmann,et al.  Laser Additive Manufacturing and Bionics: Redefining Lightweight Design , 2011 .

[6]  J. Kruth,et al.  Fine-structured aluminium products with controllable texture by selective laser melting of pre-alloyed AlSi10Mg powder , 2013 .

[7]  H. Maier,et al.  On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance , 2013 .

[8]  H. Maier,et al.  The Deformation Behavior of Functionally Graded TWIP Steel under Monotonic Loading at Ambient Temperature , 2013 .

[9]  T. Niendorf,et al.  In-situ characterization of the damage evolution in thin polyelectrolyte films on TWIP steel substrates , 2013 .

[10]  Jean-Pierre Kruth,et al.  Microstructural investigation of Selective Laser Melting 316L stainless steel parts exposed to laser re-melting , 2011 .

[11]  J. S. Kallend,et al.  OPERATIONAL TEXTURE ANALYSIS , 1991 .

[12]  Jan Bültmann,et al.  High Power Selective Laser Melting (HP SLM) of Aluminum Parts , 2011 .

[13]  L. Murr,et al.  Metal Fabrication by Additive Manufacturing Using Laser and Electron Beam Melting Technologies , 2012 .

[14]  Thomas Tröster,et al.  Highly Anisotropic Steel Processed by Selective Laser Melting , 2013, Metallurgical and Materials Transactions B.

[15]  Mohsen Badrossamay,et al.  Further studies in selective laser melting of stainless and tool steel powders , 2007 .

[16]  L. Murr,et al.  Compression deformation behavior of Ti-6Al-4V alloy with cellular structures fabricated by electron beam melting. , 2012, Journal of the mechanical behavior of biomedical materials.

[17]  H. Maier,et al.  The role of monotonic pre-deformation on the fatigue performance of a high-manganese austenitic TWIP steel , 2009 .

[18]  U. Prahl,et al.  Derivation and Variation in Composition-Dependent Stacking Fault Energy Maps Based on Subregular Solution Model in High-Manganese Steels , 2009 .

[19]  B. Baufeld,et al.  Additive manufacturing of Ti–6Al–4V components by shaped metal deposition: Microstructure and mechanical properties , 2010 .

[20]  F. Vollertsen,et al.  Microstructure and mechanical properties of laser-welded joints of TWIP and TRIP steels , 2010 .

[21]  O. Bouaziz,et al.  High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships , 2011 .

[22]  Heat treatment of Ti6Al4V produced by Selective Laser Melting: Microstructure and mechanical properties , 2012 .

[23]  O. Graessel,et al.  High strength Fe–Mn–(Al, Si) TRIP/TWIP steels development — properties — application , 2000 .

[24]  L. Murr,et al.  Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser melting , 2012 .

[25]  Bo Song,et al.  Effects of processing parameters on microstructure and mechanical property of selective laser melted Ti6Al4V , 2012 .

[26]  D. Raabe,et al.  The effect of grain size and grain orientation on deformation twinning in a Fe-22 wt.% Mn-0.6 wt.% C TWIP steel , 2010 .

[27]  H. Maier,et al.  Fatigue crack growth—Microstructure relationships in a high-manganese austenitic TWIP steel , 2010 .

[28]  K. Osakada,et al.  Residual Stress within Metallic Model Made by Selective Laser Melting Process , 2004 .

[29]  Christoph Leyens,et al.  Additive manufactured Ti-6Al-4V using welding wire: comparison of laser and arc beam deposition and evaluation with respect to aerospace material specifications , 2010 .

[30]  H. Maier,et al.  Microstructure – deformation relationships in fine grained high manganese TWIP steel – the role of local texture , 2012 .