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Meeting MS&T21: Materials Science & Technology
Symposium Late News Poster Session
Presentation Title P3-26: Introducing Heusler Fe<sub>2</sub>SiTi Intermetallic as a New Strengthening Precipitate for High Strength Low Alloy Steels
Author(s) Rafael T. Rodriguez De Vecchis, Xin Wang, Soumya Sridar, Zhangwei Wang, Wei Xiong
On-Site Speaker (Planned) Rafael T. Rodriguez De Vecchis
Abstract Scope High strength low alloy (HSLA) steels are candidate steels for automobile and naval applications due to an outstanding synergy of weldability, toughness, and strength resulting from the combination of low carbon content and co-precipitation of Cu and M<sub>2</sub>C. However, in the continuous search for stronger, lighter, and low-alloying steels, precipitation strengthening of Heusler compounds has proven promising but has been so far left unexplored in the context of HSLA steels. Hence, in this work, a composition close to the HSLA-100 steel was designed through a CALPHAD-based ICME (CALPHAD: Calculation of Phase Diagrams, ICME: Integrated Computational Materials Engineering) framework with Fe<sub>2</sub>SiTi Heusler intermetallic for precipitation strengthening effects. The phase stability and precipitation kinetics were systematically studied via phase transformation modeling and experiments. The latter report a 717 HV peak aging hardness as the result of record-high ~8 vol.% of nano-sized Fe<sub>2</sub>SiTi precipitate formed concomitantly with Cu clusters.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Extrinsic Size Effects on Fracture Behaviour of Copper
Fabrication of Doped β-tricalcium Phosphate Bioceramics by Robocasting for Bone Repair Applications
Hybrid Additive/Subtractive System of Ceramic Materials: Investigation of Powder, Process and Innovative Post-treatments
LSTM Model to Predict Low-cycle Fatigue in IN718
Microstructural Conditioning to Reveal Prior Austenitic Grain Using the Oxidation Method
Nanoindentation Studies on Friction Stir Processed Dual Phase High Entropy Alloy
P1-17: Hydrogen Induced Photodarkening of Cu-doped B-Ga2O3 Czochralski Single Crystals
P1-27: Polyurea Tensile Tests at High Strain Rates
P1-34: Resilient SiOC/Epoxy Nanocomposites
P1-35: Spectroscopic Studies of Nd3+ Doped KY3F10 Nanoparticles
P1-5: Oxidation Protection of AlN/BN via Al18B4O33
P1-6: Luminescence Thermometry – a Fad or a Challenge?
P1-7: Preparation and Structural Evolution of Si(O)CN Fibers Prepared via Hand Spinning of a Modified Silazane Oligomer
P2-10: Correlation between Shear Strength and PU Foam Density with Respect to Aging Time in District Heating Pipe
P2-29: Porous Metal Micro-pillars by Thermomechanical Molding
P2-9: Computational Fluid Dynamics Modeling of Enhanced Convective Heat Transfer Using Twisted Tape Insert
P3-10: Additively Manufactured 718 Ni Alloys with Oxide Nanoparticles
P3-11: CALPHAD-based Alloy Design and Uncertainty Quantification for Additive Manufacturing
P3-13: Effect of Heat Treatment on Microstructure and Corrosion Behavior of Additively Manufactured 7050 Aluminum Alloy
P3-26: Introducing Heusler Fe2SiTi Intermetallic as a New Strengthening Precipitate for High Strength Low Alloy Steels
P3-27: Understanding the Load Response Behavior of Martensite, Bainite and Accompanied Retained Austenite in a High Carbon Bearing Steel
P3-28: Fatigue Analysis of a Spring Coil Structure under Cyclic Loading Conditions
P3-29: Finite Element Modeling of Sheet Metal Bending Process
P3-30: Grain Size-texture Coupling in Crystal Plasticity Finite Element Modeling : Application to Magnesium Alloys
P3-31: Reactive Phase Formation: Kinetics and Associated Microstructure Evolution
P3-32: Understanding Mechanical Behavior of Basketball Hoops Using Finite Element Modeling
Scanning Strategies Investigation for Powder Bed Selective Laser Processing of Alumina
Texture Evolution during the High Temperature Heat Treatment of Additively Manufactured IN718

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