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Meeting MS&T21: Materials Science & Technology
Symposium Deformation-induced Phase Transformations
Presentation Title Accounting for Phase Transformation in Plastic Anisotropy Modeling of SS316L
Author(s) Elizabeth Marie Mamros, Jinjin Ha, Yannis P. Korkolis, Brad L. Kinsey
On-Site Speaker (Planned) Yannis P. Korkolis
Abstract Scope Plasticity of SS316L was characterized by uniaxial and biaxial tension experiments, including the effect of phase transformation on material behavior. Normalized flow stresses and strain ratios were calculated with respect to plastic work to capture the evolutionary behavior. The results were used to calibrate non-quadratic anisotropic yield function (Yld2004-18p) parameters as a function of equivalent plastic strain. In-plane biaxial tension cruciform experiments were performed to validate the plastic anisotropy model. The model predicted the experiments reasonably well for proportional paths ranging from uniaxial to equibiaxial loading. The resulting martensitic transformation was measured via magnetic induction and validated by electron backscatter diffraction. Alterations to the material properties of austenitic stainless steels resulting from deformation-induced martensitic transformation is of interest for creating heterogeneous biomaterials. By controlling stress superposition, the microstructure can be tailored to the desired material properties for a specific application, e.g., trauma hardware, which has conflicting strength and weight requirements.


Accounting for Phase Transformation in Plastic Anisotropy Modeling of SS316L
Analysis of Stress State of Plastic Medium Influence on Structural Transformations in Low-alloy Steels
Ausforming of Ferrium M54 Ultra-high Strength Steel
Engineering Microstructures for Conventionally and Additively Manufactured Ni-based Superalloys
Influence of 3D Microstructure on Deformation-induced Martensitic Transformation Studied by In Situ High-energy Diffraction Microscopy and Crystal Plasticity Modeling
Intrinsic Coupling between Deformation Twinning and Phase Transformation in NiTi Shape Memory Alloys and Metastable Beta Ti-alloys
Localized Phase Transformation at Stacking Faults and the Corresponding Alloy Design Strategy
P1-18: Bimetallic Billets for Magnesium-thermal Production of High Quality Sponge Titanium
P1-19: High-cut Steel Property Researches For Taps’ Manufacture
Solid Phase Plasticity Mechanisms in Metals and Rocks during Shear Deformation
Wire Size Effect on the Nucleation of Fatigue Cracks Near Non-metallic Inclusions in Superelastic Nitinol

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