@article{
 title = {The thermodynamics and competitive kinetics of metastable τ phase development in MnAl-base alloys},
 type = {article},
 year = {1993},
 identifiers = {[object Object]},
 pages = {127-134},
 volume = {163},
 id = {d04f103b-8bc5-3bc6-8d4c-cf21e7c217b2},
 created = {2018-09-14T20:58:26.343Z},
 file_attached = {true},
 profile_id = {70644822-a92d-388e-a930-3d28afc76b1e},
 group_id = {f7d35d58-7823-3e09-9e83-2d24928a3f0e},
 last_modified = {2019-01-07T22:04:24.727Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 private_publication = {false},
 abstract = {The solidification of a metastable ferromagnetic τ phase in undercooled MnAlC alloys is examined in terms of the relative thermodynamic phase stability and competitive kinetics. The heat of transformation ΔHtτ→εlunateof the metastable τ phase to the equilibrium h.c.p. εlunate phase and the heat of fusion ΔHfεlunate→lof the h.c.p. εlunate phase in a Mn0.55Al0.433C0.017alloy were measured to determine the Gibbs free energy differences between the metastable and stable phases as a function of temperature. The results indicate that a minimum amount of undercooling of ΔT = 87 K is required to form the metastable ferromagnetic τ phase over the equilibrium phases in a Mn0.55Al0.433C0.017alloy. The thermodynamic evaluation was applied further to develop a complete temperature-time-transformation (TTT) diagram of the Mn0.55Al0.433C0.017alloy based on a solid-state transformation kinetics analysis of the εlunate→τ reaction during isothermal treatments. This analysis reveals the critical cooling rate of the order of 20 K s-1to bypass the metastable τ phase nucleation during solid state transformation in agreement with empirical observations. The combined thermodynamic and competitive kinetics analysis provide a unified guide for the processing of near equiatomic MnAl alloys. © 1993.},
 bibtype = {article},
 author = {Kim, Y. J. and Perepezko, J. H.},
 journal = {Materials Science and Engineering A},
 number = {1}
}

{"_id":"KKem5dHzcMvHeNPNP","bibbaseid":"kim-perepezko-thethermodynamicsandcompetitivekineticsofmetastablephasedevelopmentinmnalbasealloys-1993","downloads":0,"creationDate":"2019-01-26T04:23:27.551Z","title":"The thermodynamics and competitive kinetics of metastable τ phase development in MnAl-base alloys","author_short":["Kim, Y., J.","Perepezko, J., H."],"year":1993,"bibtype":"article","biburl":null,"bibdata":{"title":"The thermodynamics and competitive kinetics of metastable τ phase development in MnAl-base alloys","type":"article","year":"1993","identifiers":"[object Object]","pages":"127-134","volume":"163","id":"d04f103b-8bc5-3bc6-8d4c-cf21e7c217b2","created":"2018-09-14T20:58:26.343Z","file_attached":"true","profile_id":"70644822-a92d-388e-a930-3d28afc76b1e","group_id":"f7d35d58-7823-3e09-9e83-2d24928a3f0e","last_modified":"2019-01-07T22:04:24.727Z","read":false,"starred":false,"authored":false,"confirmed":"true","hidden":false,"private_publication":false,"abstract":"The solidification of a metastable ferromagnetic τ phase in undercooled MnAlC alloys is examined in terms of the relative thermodynamic phase stability and competitive kinetics. The heat of transformation ΔHtτ→εlunateof the metastable τ phase to the equilibrium h.c.p. εlunate phase and the heat of fusion ΔHfεlunate→lof the h.c.p. εlunate phase in a Mn0.55Al0.433C0.017alloy were measured to determine the Gibbs free energy differences between the metastable and stable phases as a function of temperature. The results indicate that a minimum amount of undercooling of ΔT = 87 K is required to form the metastable ferromagnetic τ phase over the equilibrium phases in a Mn0.55Al0.433C0.017alloy. The thermodynamic evaluation was applied further to develop a complete temperature-time-transformation (TTT) diagram of the Mn0.55Al0.433C0.017alloy based on a solid-state transformation kinetics analysis of the εlunate→τ reaction during isothermal treatments. This analysis reveals the critical cooling rate of the order of 20 K s-1to bypass the metastable τ phase nucleation during solid state transformation in agreement with empirical observations. The combined thermodynamic and competitive kinetics analysis provide a unified guide for the processing of near equiatomic MnAl alloys. © 1993.","bibtype":"article","author":"Kim, Y. J. and Perepezko, J. H.","journal":"Materials Science and Engineering A","number":"1","bibtex":"@article{\n title = {The thermodynamics and competitive kinetics of metastable τ phase development in MnAl-base alloys},\n type = {article},\n year = {1993},\n identifiers = {[object Object]},\n pages = {127-134},\n volume = {163},\n id = {d04f103b-8bc5-3bc6-8d4c-cf21e7c217b2},\n created = {2018-09-14T20:58:26.343Z},\n file_attached = {true},\n profile_id = {70644822-a92d-388e-a930-3d28afc76b1e},\n group_id = {f7d35d58-7823-3e09-9e83-2d24928a3f0e},\n last_modified = {2019-01-07T22:04:24.727Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n private_publication = {false},\n abstract = {The solidification of a metastable ferromagnetic τ phase in undercooled MnAlC alloys is examined in terms of the relative thermodynamic phase stability and competitive kinetics. The heat of transformation ΔHtτ→εlunateof the metastable τ phase to the equilibrium h.c.p. εlunate phase and the heat of fusion ΔHfεlunate→lof the h.c.p. εlunate phase in a Mn0.55Al0.433C0.017alloy were measured to determine the Gibbs free energy differences between the metastable and stable phases as a function of temperature. The results indicate that a minimum amount of undercooling of ΔT = 87 K is required to form the metastable ferromagnetic τ phase over the equilibrium phases in a Mn0.55Al0.433C0.017alloy. The thermodynamic evaluation was applied further to develop a complete temperature-time-transformation (TTT) diagram of the Mn0.55Al0.433C0.017alloy based on a solid-state transformation kinetics analysis of the εlunate→τ reaction during isothermal treatments. This analysis reveals the critical cooling rate of the order of 20 K s-1to bypass the metastable τ phase nucleation during solid state transformation in agreement with empirical observations. The combined thermodynamic and competitive kinetics analysis provide a unified guide for the processing of near equiatomic MnAl alloys. © 1993.},\n bibtype = {article},\n author = {Kim, Y. J. and Perepezko, J. H.},\n journal = {Materials Science and Engineering A},\n number = {1}\n}","author_short":["Kim, Y., J.","Perepezko, J., H."],"urls":{"Paper":"https://bibbase.org/service/mendeley/70644822-a92d-388e-a930-3d28afc76b1e/file/4a040a67-db0d-b303-5ad6-f446fab89c7f/1993-The_thermodynamics_and_competitive_kinetics_of_metastable__phase_development_in_MnAl-base_alloys.pdf.pdf"},"bibbaseid":"kim-perepezko-thethermodynamicsandcompetitivekineticsofmetastablephasedevelopmentinmnalbasealloys-1993","role":"author","downloads":0},"search_terms":["thermodynamics","competitive","kinetics","metastable","phase","development","mnal","base","alloys","kim","perepezko"],"keywords":[],"authorIDs":[]}