ProgramMaster Logo
Conference Tools for 2024 TMS Annual Meeting & Exhibition
Register as a New User
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Ultrafine-grained and Heterostructured Materials (UFGH XIII)
Presentation Title Microstructure and Mechanical Properties of Heterogeneous-nanostructured Duplex Stainless Steels
Author(s) Hiromi Miura, Koji Koyama, Yojiro Oba, Masakazu Kobayashi, Chihiro Watanabe
On-Site Speaker (Planned) Hiromi Miura
Abstract Scope Duplex stainless steels (DSSs) with different α/γ phase ratios were heavily cold rolled to develop heterogeneous nanostructure, in which {001}<011> or {111}<011> α and {011}<112> γ were alternatively stacked. Especially, γ exhibited specific feature that “eye”-shaped twin domains surrounded by shear bans were embedded in low-angle lamellae, while α was simply composed of substructure. The heavily cold-rolled DSSs exhibited large mechanical anisotropy that tensile strength along transverse direction (TD) was larger than that along rolling direction. Tensile tests along TD showed quite high tensile strength (TS) over 1.5 GPa and was further increased with decreasing α/γ ratio. By aging at 748 K, in contrast, TS of the DSSs with higher α/γ ratio was more notably raised, up to 2.3 GPa. TEM and EDS analyses suggested that strengthening by aging should be induced by dense precipitation in α and enrichment of elements at α/α, γ/γ and α/γ boundaries.
Proceedings Inclusion? Planned:
Keywords Characterization, Iron and Steel, Mechanical Properties


Achieving Antimicrobial and Superior Mechanical Properties in a Scalable and Cost-effective Heterostructured Stainless Steel
Bio-Compatibility of HPT-Processed Commercially Pure Mg and a MgZnCe Alloy
C-34: In-situ Heating Mono- and Polychromatic Synchrotron X-ray Diffraction of Bulk Hetero-nanostructured Copper
C-35: Multiple-step SPD Process for Ultrafine-grained Aluminum Sheets
C-36: Temperature Dependence of Deformation Behavior of Ultrafine-Grained Commercial Purity Titanium
Continuous Metal Processing of Ultrafine-grained Copper Sheets through the Cold Angular Rolling Process
Cryogenic Mechanical Properties of the Equal-channel Angular Pressed High-Mn Steel
Discerning Intragranular and Interfacial Plasticity in Cu/Nb Nanolaminates
Effect of Processing Parameter on the Grain Structure Evolution in ODS 14YWT Alloy Powders Consolidated by Friction Stir Processing
Evaluation of Serration Behavior and Localized Deformation in 22Mn-0.6C Steels with Various Grain Sizes
Fracture Properties of the CrMnFeCoNi Alloy in the Nanocrystalline Regime
High-Temperature Deformation Behavior of a Harmonic Structure Designed CrMnFeCoNi Alloy
Improvement of Strength and Ductility of CuTa Composites by ECAE Processing
Mechanical Response and Microstructure Evolution of the Coarse-grained Matrix in Gradient Structure Cu Alloys
Mechanical Studies of Heterogeneous Nanostructured Ni-based Superalloys
Microstructural Analysis of Pfinodal Alloy Processed by Friction Extrusion
Microstructure -- Texture -- Property Relationship in a Niobium Alloy Subjected to High-pressure Torsion
Microstructure and Mechanical Properties of Heterogeneous-nanostructured Duplex Stainless Steels
Plastic Deformation Processing of Heterostructured Materials: An Overview
Severe Plastic Deformation of Metal Nanoparticles
Structural Characterization and Thermal Evolution of Severe Plastic Deformation Processed Materials by Advanced Synchrotron and Neutron Methods
Synthesis of Ti-TiAl3 Metal -- Intermetallic Nanolaminates via Accumulative Roll Bonding and Annealing
Temporary Alloying with Hydrogen to Create Hierarchical Microstructures in Titanium Alloys
Tensile Deformation Behavior of a Nanocrystalline Cu-2.7at.%Zr Supersaturated Solid-Solution Alloy Processed by the High-Pressure Torsion
Ultrasonic Vibration-assisted Microforming of UFG Metals Produced by ECAP

Questions about ProgramMaster? Contact