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Meeting Materials Science & Technology 2017
Symposium Fifty Years of Metallography and Materials Characterization
Presentation Title Three Dimensional (3D) Analysis of White Etching Regions in AISI M50 Bearing Steel
Author(s) Satya Ganti, Bryan Turner, Hitesh K Trivedi, Veeraraghavan Sundar, Mathew Kirsch, Don Anthony, Bryan McCoy
On-Site Speaker (Planned) Veeraraghavan Sundar
Abstract Scope White etching regions and dark etching regions forms in stressed regions of the bearings. A “butterfly” formation forms around oxide impurities and large carbides. These formations are dependent on operating conditions, material alloying elements and heat treatment. They are well studied in two dimension (2D). The objective of this study was to analyze WER formation in three dimensional (3D) that will allow better understanding of material transformation after stress cycling. Three rolling contact fatigue (RCF) tested AISI VIMVAR M50 samples(bench test, sub-scale test and commercial gas turbine engine) were analyzed using automated serial sectioning to map WER network and butterfly in 3D. Automated serial sectioning and 2D optical microstructural data for 3D reconstructions and analysis was done using a fully automated serial sectioning system - RoboMet.3DŽ. The 2D image data set allowed 3D visualization and analysis of the evolution and propagation of WER and butterfly in AISI M50 bearing steel.
Proceedings Inclusion? Planned: Publication outside of MS&T

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Metallographic Study on the Diffusion Behavior and Microstructural Transformations in Silicon-containing Powder Metallurgy Steels
Advanced Analytical Microscopy: Metallographic Characterization for the Next Fifty Years
Applying In Situ S/TEM Microscopy to Structural Materials Using MEMS-based Closed-cell Gas-reactions – Challenges and Prospects
Characterization of Transition-Iron-Carbide Precipitates
Correlating Variability in Fatigue Life with Fracture Mechanisms in a Near-α Titanium Alloy
Delving into the World of Grain Boundaries with Electron Microscopy
Failure of a Reformer Furnace by "Surge"
How Microscopy Can Help to Save Energy, Save Lives, Create Jobs and Improve Our Health
Improving the Precision of Microindentation Hardness Data
K-3: Automated Optical Microstructural Characterization of Thermal Spray Coatings
K-4: Advances in Automated Optical 3D Materials Characterization
Metallographic Analysis of Cu-Nb Nanolaminates Using Polarized Light Optical Microscopy
Metallographic Analysis of KAB Nanostructured Steels
Microanalysis of Microscopy Evaluation of Mechanical Property Changes due to Low Temperature Thermal Treatment of a Steel
Microstructural Developments in Dual-phase and Advanced High Strength Steels
Next Step in Complex Microstructure Classification – How to Replace Subjective Expert Bias by 3D Information and Autonomous Procedures?
Oxidation Behavior of Tungsten Carbide-6% Cobalt Cemented Carbide
Proclamation, Publication and Progress
Quantitative Microstructure Analysis by TriBeam Tomography
Three Dimensional (3D) Analysis of White Etching Regions in AISI M50 Bearing Steel

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