TY - JOUR
T1 - Charting the 'composition-strength' space for novel austenitic, martensitic and ferritic creep resistant steels
AU - Lu, Qi
AU - van der Zwaag, Sybrand
AU - Xu, Wei
PY - 2017
Y1 - 2017
N2 - We report results of a large computational 'alloy by design' study, in which the 'chemical composition-mechanical strength' space is explored for austenitic, ferritic and martensitic creep resistant steels. The approach used allows simultaneously optimization of alloy composition and processing parameters based on the integration of thermodynamic, thermo-kinetics and a genetic algorithm optimization route. The nature of the optimisation depends on both the intended matrix (ferritic, martensitic or austenitic) and the desired precipitation family. The models are validated by analysing reported strengths of existing steels. All newly designed alloys are predicted to outperform existing high end reference grades.
AB - We report results of a large computational 'alloy by design' study, in which the 'chemical composition-mechanical strength' space is explored for austenitic, ferritic and martensitic creep resistant steels. The approach used allows simultaneously optimization of alloy composition and processing parameters based on the integration of thermodynamic, thermo-kinetics and a genetic algorithm optimization route. The nature of the optimisation depends on both the intended matrix (ferritic, martensitic or austenitic) and the desired precipitation family. The models are validated by analysing reported strengths of existing steels. All newly designed alloys are predicted to outperform existing high end reference grades.
KW - Alloy design
KW - Coarsening rate
KW - Matrix
KW - Precipitation hardening
KW - Solid solution strengthening
UR - http://www.scopus.com/inward/record.url?scp=85020622275&partnerID=8YFLogxK
U2 - 10.1016/j.jmst.2017.05.004
DO - 10.1016/j.jmst.2017.05.004
M3 - Article
AN - SCOPUS:85020622275
SN - 1005-0302
VL - 33
SP - 1577
EP - 1581
JO - Journal of Materials Science & Technology: an international journal in the field of materials science
JF - Journal of Materials Science & Technology: an international journal in the field of materials science
IS - 12
ER -