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In-situ Neutron Diffraction Study of the Deformation Behaviour of two High-Manganese Austenitic Steels
Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Konstruktionsmaterial. Linköpings universitet, Tekniska högskolan.
Northeastern University, Shenyang, China.
Key Lab for Anisotropy & Texture of Mater., Northeastern Univ., Shenyang, China and Beijing Institute of Technology, Beijing, China.
ISIS Facility, CCLRC Rutherford Appleton lab, Didcot, UK.
Vise andre og tillknytning
2011 (engelsk)Inngår i: Materials Science Forum, ISSN 0255-5476, E-ISSN 1662-9752, Vol. 681, s. 474-479Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In-situ neutron diffraction experiments under tensile loading were carried out to study the micromechanical behaviour of two iron-manganese based steels, a TWIP (twinning induced plasticity) steel with 30 wt% Mn and a TRIP steel (transformation induced plasticity) with 20 wt% Mn. The former was loaded to 31.3% strain and the latter to 20% strain. The 30 wt.% Mn steel had a fully austenitic microstructure which remained stable over the loading range studied, while stress induced austenite to α´- and ε-martensite transformations occur in the 20 wt.% Mn steel which initially contained an α´-martensite in addition to the austenite. The evolution of lattice strains under tensile loading differs between the two steels, reflected their different plastic deformation mechanisms. A stronger grain-orientation dependent behaviour is observed during deformation for the 20 wt.% Mn in contrast to the 30wt.% Mn steel.

sted, utgiver, år, opplag, sider
Stafa-Zurich, Switzerland: Trans Tech Publications Inc., 2011. Vol. 681, s. 474-479
Emneord [en]
Mn:Steels, TWIP, TRIP, In-situ neutron diffraction, Micromechanical behaviour, Phase transformation
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-66454DOI: 10.4028/www.scientific.net/MSF.681.474ISI: 000303432600079OAI: oai:DiVA.org:liu-66454DiVA, id: diva2:404163
Konferanse
8th European Conference on Residual Stresses (ECRS8), Trento, Italy, June 26-28, 2010
Tilgjengelig fra: 2011-03-16 Laget: 2011-03-16 Sist oppdatert: 2017-12-11bibliografisk kontrollert

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