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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Fatigue in Materials: Fundamentals, Multiscale Modeling and Prevention
Presentation Title Microstructural and Mechanical Properties of Linear Friction Welded Ti-6Al-2Sn-4Zr-6Mo
Author(s) Toby Webster
On-Site Speaker (Planned) Toby Webster
Abstract Scope Linear Friction Welding (LFW) of α+β alloy Ti-6Al-4V (Ti64) is well publicised, the present study seeks to assess the application of LFW to an alloy with higher temperature properties, Ti-6Al-2Sn-4Zr-6Mo (Ti6246). Two different scales of Ti6246 weld have been produced to study the effect on the metallurgy and mechanical properties of the joint, including assessment of crystallographic texture. Hardness maps have been produced in both PWHTed and as-welded conditions. A reduction in hardness in the CWZ is observed in the as-welded condition, which upon PWHTing is reversed to a hardness peak. The microstructural variation across the weld has been analysed using optical and electron microscopy. Test pieces have been extracted at different orientations to determine fatigue threshold and fracture toughness values. Threshold values have been observed not to be effected by specimen orientation. However, fracture toughness values vary according to the crack growth direction relative to the measured texture.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3-D Understanding of Fatigue Crack Initiation from Inclusions in Inconel 718 Alloy
A Data Science Framework for Reduced-order Microstructure-sensitive Rank Ordering of Fatigue Performance
A Physically-based Methodology for the Deterministic Prediction of Microstucturally-sensitive Fatigue Crack Growth
A Qualitative FE Analysis of the Effect of the Local Texture on the Heterogeneous Plastic Strain Field in Nickel-based Superalloys during Low Cycle Fatigue
A Voxel-based Meshing Framework for the Simulation of Arbitrary 3D Crack Growth in Heterogeneous Materials
Analysis of Crack Initiation and Early Growth in Ti Using Miniaturised Ultrasonic Fatigue Testing
Characterization of Creep-fatigue Deformation in 9Cr-1MoV Steel and Weldments
Crack Growth under Rolling Contact Fatigue: 3D Characterisation and Modelling
Cyclic Deformation Induced Twinning in an Austenitic Ferritic Two Phase Alloy during Low Cycle Fatigue
Cyclic Stress-strain Response and Microstructural Evolution Modeling of Nickel-based Superalloys during Low Cycle Fatigue
Data-driven Approaches for Steel Fatigue Strength Prediction
Effect of Advanced Mechanical Surface Treatments on Room and Elevated Temperature Residual Stress, Microstructure, Strength, and Fatigue Behavior of ATI 718Plus Alloy
Effects of Cooling Condition on Fatigue Crack Propagation Behaviors of β-processed Ti-6Al-4V Alloys
Fatigue-assisted Discontinuous Grain Growth in Al Alloys
Fatigue Behavior of Ti6Al4V with Surface Modified by Femtosecond LASER
Fatigue Crack Growth in a Low Density Aluminum Alloy Welded by Friction Spot Welding
Fatigue Damage Precursor Effects on the Dynamic Properties of α-Iron
Fatigue of a transient liquid phase bonded superalloy for use in a microchannel-heat exchanger
Fatigue of the Beta Ti-15Mo and Ti-12Mo-6Zr-2Fe Alloys Treated above Beta Transus
Fatigue Strength Scaling and Deformation at the Nanoscale – Nanotwinned and Nanocrystalline Metals
From the Mechanistic Modelling of Fatigue Crack Formation to the Complexity of Component Fatigue Life Assessment
High-throughput Fatigue Experiments for Early Damage Evolution and Lifetime Prediction
Identification of Fatigue Weak Links in Aluminum Alloys Using a Data-driven Approach
Influence of Cold Spray on the Enhancement of Corrosion Fatigue of the AZ31B Cast Mg Alloy
Investigation of Slip Transfer across Phase Boundaries with Application to Cold Dwell Facet Fatigue
Low Cycle Fatigue of Friction Stir Welded Aluminum Lithium 2099
Microstructural and Mechanical Properties of Linear Friction Welded Ti-6Al-2Sn-4Zr-6Mo
Microstructure, Strain Localization and Fatigue in a Polycrystalline Nickel Base Superalloy at High Temperature
Miniaturised Ultrasonic Fatigue Testing in Torsion
Modeling of Creep-fatigue Crack Growth in Steels for High Temperature Structural Applications
Modelling Microstructural Alterations in Bearing Steels under Rolling Contact Fatigue
Nickel-titanium-hafnium Alloy Design for Tribological Systems
Predicting the Effect of Microstructure on the Likelihood of Early Fatigue Failures Using Data Analytics Algorithms
Prediction and Fatigue Response of Ti-6Al-4V Alloy with Surface Modified by Chemical Treatment
Prediction of Intergranular Micro-crack Initiation Induced by the Impingement of Persistent Slip Bands on Grain Boundaries
Prediction of Microstructurally–influenced Fatigue Crack Propagation
Simulation and Experimental Validation of Damage Accumulation and Phase Transformation during Cyclic Mechanical Loading of a Metastable Austenitic Stainless Steel Considering Prehistory Effects
Statistical Characterization of Microstructure and Fatigue of Wire and Arc Additive Manufactured Stainless Steel 304
Subcycle Fatigue Crack Growth Formulation under Positive and Negative Stress Ratios
Temperature and Microstructural Dependence of Dwell Fatigue in Dual-phase Titanium Alloys
The Effect of Dwell on Fatigue Crack Growth in a Ti-6Al-2Sn-4Zr-6Mo Alloy
The Effect of Grain Size on Low Cycle Fatigue and Cyclic Stress Strain Behavior of Unalloyed Mg
Thermal Fatigue Behavior of High Cr Roller Steel
Time-based Subcycle Formulation for Fatigue Crack Growth under Arbitrary Random Variable Loadings

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