Simulation of Precipitation Kinetics and Precipitation Strengthening of B2-precipitates in Martensitic PH 13–8 Mo Steel
The strength of quenched Co-free martensitic PH 13–8 Mo steel increases significantly during isothermal ageing at 575°C due to precipitation of nanometer-sized particles. The evolution of these ordered B2 type precipitates is simulated by thermo-kinetic calculations and compared with experimental re...
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| Veröffentlicht in: | ISIJ International 2012, Vol.52(4), pp.610-615 |
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| creator | Povoden-Karadeniz, Erwin Kozeschnik, Ernst |
| description | The strength of quenched Co-free martensitic PH 13–8 Mo steel increases significantly during isothermal ageing at 575°C due to precipitation of nanometer-sized particles. The evolution of these ordered B2 type precipitates is simulated by thermo-kinetic calculations and compared with experimental results. The composition of the B2-nuclei is determined from minimization of the critical nucleation free energy. The results of the simulations are utilized for the assessment of contributions of different strengthening mechanisms to the total lower yield strength evolution. We observe good qualitative agreement between the simulations and the experimental data. |
| doi_str_mv | 10.2355/isijinternational.52.610 |
| format | Article |
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The evolution of these ordered B2 type precipitates is simulated by thermo-kinetic calculations and compared with experimental results. The composition of the B2-nuclei is determined from minimization of the critical nucleation free energy. The results of the simulations are utilized for the assessment of contributions of different strengthening mechanisms to the total lower yield strength evolution. 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The evolution of these ordered B2 type precipitates is simulated by thermo-kinetic calculations and compared with experimental results. The composition of the B2-nuclei is determined from minimization of the critical nucleation free energy. The results of the simulations are utilized for the assessment of contributions of different strengthening mechanisms to the total lower yield strength evolution. We observe good qualitative agreement between the simulations and the experimental data.</abstract><pub>The Iron and Steel Institute of Japan</pub><doi>10.2355/isijinternational.52.610</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | ISIJ International, 2012, Vol.52(4), pp.610-615 |
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| source | J-STAGE Free; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Free Full-Text Journals in Chemistry |
| subjects | anti-phase boundary bcc-B2 phase nucleus composition precipitation strengthening |
| title | Simulation of Precipitation Kinetics and Precipitation Strengthening of B2-precipitates in Martensitic PH 13–8 Mo Steel |
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