TY - JOUR
T1 - The effect of aluminium on mechanical properties and deformation mechanisms of hadfield steel single crystals
AU - Zakharova, E. G.
AU - Kireeva, I. V.
AU - Chumlyakov, Y. I.
AU - Shul'mina, A. A.
AU - Sehitoglu, H.
AU - Karaman, I.
PY - 2004
Y1 - 2004
N2 - On single crystals of Hadfield steel (Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C, wt.%) the systematical investigations of deformation mechanisms - slip and twinning, stages of plastic flow, strain hardening coefficient depending on orientation of tensile axis have been carried out by methods of optical and electron microscopy, x-ray analysis. Is has been shown that the combination of low stacking fault energy (γSF = 0.03J/m2) with high concentration of carbon atoms in aluminium-free steel results in development of the mechanical twinning at room temperature in all crystal orientations. The new type of twinning with formation of extrinsic stacking fault has been found out in [001] single crystals. Experimentally it has been established that alloying with aluminium leads to increase of stacking fault energy of Hadfield steel and suppresses twinning in all orientations of crystals at preservation of high values of strain-hardening coefficients θ.
AB - On single crystals of Hadfield steel (Fe-13Mn-1.3C, Fe-13Mn-2.7Al-1.3C, wt.%) the systematical investigations of deformation mechanisms - slip and twinning, stages of plastic flow, strain hardening coefficient depending on orientation of tensile axis have been carried out by methods of optical and electron microscopy, x-ray analysis. Is has been shown that the combination of low stacking fault energy (γSF = 0.03J/m2) with high concentration of carbon atoms in aluminium-free steel results in development of the mechanical twinning at room temperature in all crystal orientations. The new type of twinning with formation of extrinsic stacking fault has been found out in [001] single crystals. Experimentally it has been established that alloying with aluminium leads to increase of stacking fault energy of Hadfield steel and suppresses twinning in all orientations of crystals at preservation of high values of strain-hardening coefficients θ.
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U2 - 10.1051/jp4:2004115029
DO - 10.1051/jp4:2004115029
M3 - Conference article
AN - SCOPUS:33645062672
SN - 1951-6355
VL - 115
SP - 243
EP - 250
JO - European Physical Journal: Special Topics
JF - European Physical Journal: Special Topics
T2 - EUROMECH-MECAMAT'2003: 7th European Mechanics of Materials Conference on Adaptive Systems and Materials: Constitutive Materials and Hybrid Structures
Y2 - 18 May 2003 through 23 May 2003
ER -