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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Phase Transformations and Microstructural Evolution
Presentation Title Thermoelastic Martensitic Transformation in Mn-rich Mn-Cu-Al BCC Alloys
Author(s) Tatsuya Ito, Xiao Xu, Toshihiro Omori, Ryosuke Kainuma
On-Site Speaker (Planned) Tatsuya Ito
Abstract Scope Cu-Al-Mn ternary alloys are known as the first discovered Heusler alloys, and the BCC structure has a broad region of solid solution. These alloys show thermoelastic martensitic transformations from the BCC to the monoclinic or tetragonal structures in the Cu-rich regions. They exhibit shape memory effect and superelasticity, which have been utilized for applications such as medical clips for ingrown nails. However, the research has been limited to the Cu-rich region because the martensitic transformation temperature decreases by the addition of either Mn or Al. In this work, we investigated the phase equilibria, microstructures and crystal structures in Mn-rich Mn-Cu-Al alloys. As a result, we found a thermoelastic martensitic transformation for the first time near the BCC/FCC phase boundary. The martensitic transformation temperatures and crystal structures will be reported in this presentation.
Proceedings Inclusion? Planned:
Keywords Phase Transformations, Copper / Nickel / Cobalt, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Combinatorial Approach to Investigate Abnormal Grain Growth Behavior in Cu-Al-Mn Shape Memory Alloys
A Strain-induced Austenite to Martensite Transformation Kinetics Law Implemented in Crystal Plasticity for Predicting Strain-path Sensitive Deformation of Stainless Steels
A Strategy to Optimize Local Phase Transformation Strengthening for Next Generation Superalloys
Advanced Characterization of High-temperature Oxygen-induced Phase Evolution in NbTiZr
An Investigation into the Effect of Primary Gamma Prime Stimulated Metadynamic Recrystallization on Supersolvus Grain Sizes in Ni Superalloy LSHR
An Molecular Dynamics Simulation Study of the Interface Migration Mechanism during B2-B33 Transformation in Ni50Zr50 Alloy
Atomistic Modeling of Phase Stability and Transformations due to the Presence of Precipitates in High and Medium Entropy Alloys
Atomistic Modeling of η-Fe2C Carbide Precipitation Kinetics in Fe-C System
Cementite Decomposition in 100Cr6 Bearing Steel during High-pressure Torsion: Influence of Composition, Size, Morphology and Matrix Hardness
Cluster Evolution and Phase Transformation in Austenitic High-Cr Stainless Steel: A Comparison of Thin Film and Bulk Geometries
Coarsening Behavior of Hierarchical B2 Precipitates in a High Entropy Alloy
Coupled Effects of Shear and Temperature on Intermixing in Cu-Ni Multilayers
Decoupling of Strain and Temperature Effects on Microstructural Evolution during High Shear Strain Deformation
Deformation-induced Phase Transformation and Microstructure Evolution in CrCoNi Medium Entropy Alloy
Deformation Enabled Precipitation in Magnesium Alloys during Hot Compression
Dynamic Microstructural Evolution of Al-Cu Alloy during Friction Stir Processing Studied Using Synchrotron Based In Situ High Energy X-ray Diffraction
Effect of Micro-segregation of Alloying Elements on the Precipitation Behaviour in Laser Surface Engineered Alloy 718
Elastic Inhomogeneity Effects on Spinodal Decomposition in Ternary Alloys
Experimental Investigation of Ni2Cr Long-range Ordering in Ni-Cr-Fe Based Model and Commercial Alloys
Formation of Three-phase Eutectic Grains on Primary Phases: Observations from in situ and Multi-modal Imaging
Growth Competition between Columnar Dendritic Grains - The Role of Microstructural Length Scales
Growth, Coarsening, and Fragmentation of Dendritic Microstructures in Metallic Materials
High Speed Rotational Diamond Anvil Cell for in situ Analysis of Shear Deformation Induced Microstructural Evolution and Phase Transformation: A Multimodal Experimental and Computational study
In-situ Observation of Coupled Growth Morphologies in Organic Peritectics under Pure Diffusion Conditions
In Situ Interrogation of Dynamic Microstructural Evolution during Friction Stir Processing of Al – 4 at.% Si
Influence of Cluster Hardening on Strength and Strain Hardening Behavior of Various Aluminum Alloys
Investigating the Dynamic Precipitation of AZ91 Alloy during Friction Stir Processing (FSP)
Kinetic Monte Carlo Simulations of Solute Clustering in Multicomponent Al Alloys
Kinetics of Phase Transformations in Boron-containing 304L Stainless Steel
Kinetics of γ’ Evolution in a Model Ni-based Alloy
Lattice Correspondences in Martensitic Transformation and Twinning in NiTi Shape Memory Alloy
Leveraging EBSD Data for Phase Transformation Product Quantification in a Low Carbon Steel by Deep Learning
Localized Phase Transformation at Stacking Faults and Mechanism-based Alloy Design
Metallic Alloy Microstructure Evolution during Materials Processing
Microstructural Evolution and Nanoprecipitation Behaviour of a Selective Laser Melted, 18% Ni Maraging 300 Steel
Microstructural Evolution during Galling
Microstructural Evolution in Oligocrystalline Fe-Mn-Al-Ni Shape Memory Alloys
Microstructure Evolution of HK40 and HP40 Heat Resistant Steels after Isothermal Aging
Microstructure Rearrangements in Magnesium Alloys upon Thermo-mechanical Processing Studied by Advanced In-situ Synchrotron X-ray Diffraction
Modeling of Phase Transformation Kinetics in Ti-6Al-4V Alloy during Additive Manufacturing
Morphological Evolution of Internally Twinned Martensite in Laser Additively Manufactured Ti6Al4V
Multiscale Model for Colony Breakdown Prediction in Two-phase Titanium Alloys
NOW ON-DEMAND ONLY - Effect of Boron Segregation on Bainite Nucleation during Isothermal Transformation
NOW ON-DEMAND ONLY - The Impact of Al on the SRO, LRO, and Clustering of Elements within a CoFeNi High Entropy Alloy
Nucleation of Coupled Body-centered-cubic and Closed-packed Structures in Liquid Ni-Cr Alloys
O-22: Carbon Transformations in Rapidly Solidified Nickel-carbon Ribbon
O-24: Coarsening, Dissolution and Re-precipitation in Multimodal Ni Superalloys: An In-situ Study
O-25: Contribution of the Electronic Entropy to Some Congruent and Allotropic Phase Transformations
O-27: Influence of the Austenitic Grain Size on the Strength in a Medium-carbon and Low-alloy Steel
O-29: Leveraging Solid-state Phase Transformations to Tailor Residual Stress in Additively Manufactured Metal Components
O-30: Microstructural and Mechanical Property of Ti-6Al-4V/STS 304 Dissimilar Joints by Diffusion Bonding Using Hierarchical Multilayers Structure
O-31: Modeling Phase Transformation and Tensile Properties of Micro-alloyed Structural Steels for Fire Resistance
O-32: Phase Evolution of Laser Melted Single Tracks of 316L
O-33: Phase Transformations and Microstructural Evolution
O-34: Polyamorphism in a Solute-lean Al-Ce Metallic Glass
O-35: The Effect of Ni Ion Implantation on the Nanoindentation Response of a Ni 50.5at%-Ti 49.5at% Shape Memory Alloy
O-36: The Influence of Ru Addition on the Precipitation Behavior of Topologically Close-packed Phase in the Ni-based Superalloy
O-37: The Microstructural Evolution of Ag-39.9at%Cu Eutectic Alloys under Different Cooling Rates
O-38: Thermodynamics of Elinvar Behavior
O-39: Transformation-induced Plasticity in Omega Titanium
On the Precipitation Behavior of γ-TiAl from a Supersaturated βo-TiAl Matrix in an Intermetallic Ti-44Al-7Mo (at.%) Alloy
Overview of the Non-isothermal Recrystallization in Cold-rolled Low-carbon Steels during Low-rate Annealing
Phase-field Modeling and Design of Elastocaloric Effect in Shape Memory Alloys and Composites
Phase Field Simulations of Direct Aging of a Rapidly Solidified Ni-Fe-Nb Alloy
Phase Field Simulations of Microstructural Evolution Using the PRISMS-PF Framework
Phase Separation under Irradiation in FeNi and Low-alloyed Steels
Phase Transformation upon Low Temperature Nitriding of Co-Cr Alloys
Precipitation Behavior in a Laser-glazed Powder-processed Icosahedral-phase-strengthened Aluminum Alloy
Precipitation Behavior of Strengthening Phases in a High Temperature Aluminum-cerium Alloy
Precipitation Process during Isothermal Aging of an Austenitic Stainless Fe-12Cr-10Mn-12Ni-5Mo-0.24N-0.03C Steel and Its Effect on the Mechanical Properties
Processing Electroceramics in the Transmission Electron Microscope
Quantitative Assessment of Short-range Order in Fe-Al and Fe-Ga Alloy Single Crystals
Role of Phosphorus in Irradiated Microstructure Evolution of a Binary Fe-P Model Alloy by TEM In Situ Irradiation
Shear Deformation-induced Modification of Defect Structures and Hierarchical Microstructures in Metallic systems
Shuffle Transformation in Titanium Alloys
Structural Evolution by Grain Refinement and Relaxation upon Heating of an Additive-manufactured 316L Stainless Steel
The Effect of Grain Size on Quasi-static and Dynamic Strength
The Effect of Irradiation Induced Defects on Martensitic Transformation in NiTi Shape Memory Alloys
The Effect of Low-temperature Aging on the Microstructure and Mechanical Behavior of Martensitic Ti-Nb Alloy
The Effect of Precipitate Size on the Thermo-mechanical Properties of Ni-Ti-Hf-Al Shape Memory Alloys
The Role of Non-hydrostatic Stress State in the α to ω Phase Transformation in Ti
The Structural Evolution of the Metastable Ni23B6 Phase during Rapid Solidification of Undercooled Ni-B Melts
Thermoelastic Martensitic Transformation in Mn-rich Mn-Cu-Al BCC Alloys
Time Resolved In-situ Small Angle X-ray Scattering Clarifies the Competition between Continuous and Discontinuous Precipitation in U-6wt%Nb
Tricky Transformations in an Ion Irradiated Nickel-titanium Alloy
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