TY - GEN
T1 - Transformation toughening in dispersed-phase systems
AU - Olson, Gregory B.
AU - Kuehmann, Charles J.
PY - 2003
Y1 - 2003
N2 - Quantitative analysis of the dynamic evolution of multilevel structure during martensitic transformations has provided the foundation for kinetics-based constitutive relations for transformation plasticity during both the stress-assisted and strain-induced modes of mechanically induced transformation. Application in numerical modeling of ductile fracture by microvoid-softening-induced shear localization, in conjunction with metallographic observation of crack-tip transformation and localization processes, reveals transformation toughening processes operating on three structural length scales, generally associated with the flow stabilizing influence of pressure-sensitive strain hardening provided by strain-induced transformation. Application of the phenomena via dispersed-phase transformation plasticity in ultrahigh-strength martensitic steels has demonstrated record toughness levels in both commercial and experimental alloy steels.
AB - Quantitative analysis of the dynamic evolution of multilevel structure during martensitic transformations has provided the foundation for kinetics-based constitutive relations for transformation plasticity during both the stress-assisted and strain-induced modes of mechanically induced transformation. Application in numerical modeling of ductile fracture by microvoid-softening-induced shear localization, in conjunction with metallographic observation of crack-tip transformation and localization processes, reveals transformation toughening processes operating on three structural length scales, generally associated with the flow stabilizing influence of pressure-sensitive strain hardening provided by strain-induced transformation. Application of the phenomena via dispersed-phase transformation plasticity in ultrahigh-strength martensitic steels has demonstrated record toughness levels in both commercial and experimental alloy steels.
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M3 - Conference contribution
AN - SCOPUS:1542347638
SN - 087339559X
SN - 9780873395595
T3 - Materials Science and Technology 2003 Meeting
SP - 493
EP - 504
BT - A Symposium on the Thermodynamics, kinetics, Characterizaion and Modeling of
A2 - Damm, E.B.
A2 - Merwin, M.J.
T2 - Materials Science and Technology 2003 Meeting
Y2 - 9 November 2003 through 12 November 2003
ER -