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ASM-GT Data Challenge Soumya Mohan Aleksandr Blekh.

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Presentation on theme: "ASM-GT Data Challenge Soumya Mohan Aleksandr Blekh."— Presentation transcript:

1 ASM-GT Data Challenge Soumya Mohan Aleksandr Blekh

2 ASM-GT Data Challenge The problem includes CS-centric and MSE-centric challenges The actual CS-centric problem would include: Data Import from ASM and other databases Data visualization and analytics Talk to Holly Rush Whether to pick optical/TEM/Precipitate related data and link with Process conditions and to the stress strain curves/Young’s Modulus and UTS Space.gatech

3 Data Challenge Problem: Reverse Engineering of Al 6061 alloy
Al6061 is a precipitate strengthened alloy: used in aircraft and automobile applications Al6061 is Heat Treated (HT) to age the sample and get desired mechanical properties Your team of MSE and Data Science engineers has been approached by your boss: Your company is trying to redesign aircraft components that were originally built in the 1950s and 1960s. They lost the original specs, the original manufacturer don’t exist anymore. They need to reverse engineer an Al6061 part, but they do not know the heat treatment required. Your Job: Find the Heat Treatment

4 Your company has salvaged some data (Data available for free)
Process Parameters Microstructure Attributes As Received Al6061(No Heat treatment) Heat treated Al6061: 400 °F at 2 hours Heat treated Al6061: 650 °F at 2 hours Heat treated Al6061: 750 °F at 2 hours Optical SEM EBSD TEM What is Heat treatment: X °F at 2 hr ? Based on this data, predict the HT required to reverse engineer the part.

5 Optical and SEM Data for all HT
775 F, SEM Image 775 F, 50X Optical Image Three types of compositionally different ppts (particles) with different morphology

6 EBSD Characterization: Pole figures, inverse pole figure, quantitative grain shape and size information

7 TEM characterization: Precipitate Analysis
Mg2Si Quantitative data for all the volume fraction of phases and grain sizes and grain aspect ratios Fe2Si2Al9 (Fe,Mn,Cr)3SiAl12

8 Facilities at your disposal (We have a small sample of the unknown HT
Microstructure characterization facility Optical: Light illumination of the microstructure What we see is the matrix and particles  $50 SEM: Higher resolution microstructure  $100 EBSD: Crystallography of the microstructure, orientation distribution  $150 TEM: Information: about volume fraction of each specific precipitate(particle)  $300 For example Each test provides different hierarchical information!!

9 Data Challenge Problem: Approach
Select a given type of data and a particular microstructure attribute (possibly using dimensionality reduction) Correlate the Process Parameter Microstructure property Buy Optical/SEM/TEM/EBSD test on unknown sample for a 'fee'. Use that to predict the unknown process parameter (Heat Treatment) The teams would be provided with technical help from Consultants. (Data Science and MSE). These consultations would also have a ‘fee’ of $20 for general advice and $50 for specific advice The winning team would be the one who can develop a comprehensive approach to predict the HT. The team who does this in the most accurate, comprehensive and economical fashion wins. 

10 Access to free data: EBSD and TEM data Go to Alloys: Microstructure Data SMDDP test data Optical and SEM information: Google drive link provided in Data for Unknown HT: Contact Soumya Mohan

11 GOOD LUCK! For any queries contact: Aleksandr Blekh Soumya Mohan


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