publication . Article . 2013

Effect of nanoscale precipitation on strengthening of ferritic ODS Fe–Cr–Al alloy

Capdevila, Carlos; Chao, Jesús; Jiménez, José Antonio; Miller, M. K.;
Open Access
  • Published: 01 Jan 2013 Journal: Materials Science and Technology, volume 29, pages 1,179-1,184 (issn: 0267-0836, eissn: 1743-2847, Copyright policy)
  • Publisher: Informa UK Limited
  • Country: Spain
Abstract
The kinetics of Fe rich α and Cr rich α′ phase separation during aging of Fe-Cr-Al oxide dispersion strengthened alloys have been analysed with a combination of atom probe tomography and thermoelectric power measurements. The slight lattice parameter decrease measured by X-ray diffraction after thermal aging was associated with a lattice misfit between the emerging α and α′ domains. The elastic strain associated with this misfit and the different elastic moduli for the α and α′ phases would produce an increase in internal stresses that would retard the motion of dislocations and thus would be the main cause for the strengthening. © 2013 Institute of Materials, M...
Subjects
free text keywords: Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics, Materials science, Alloy, engineering.material, engineering, Elastic modulus, Composite material, Lattice constant, Metallurgy, Phase (matter), Oxide, chemistry.chemical_compound, chemistry, Dislocation, Ferrite (iron), Atom probe, law.invention, law, Spinodal decomposition, Phase separation, Thermoelectric power, Tomography, Mechanical alloying, Ferrous alloy
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publication . Article . 2013

Effect of nanoscale precipitation on strengthening of ferritic ODS Fe–Cr–Al alloy

Capdevila, Carlos; Chao, Jesús; Jiménez, José Antonio; Miller, M. K.;