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Title: Combined near- and far-field high-energy diffraction microscopy dataset for Ti-7Al tensile specimen elastically loaded in situ

Journal Article · · Integrating Materials and Manufacturing Innovation
 [1];  [1];  [2];  [2];  [1];  [3];  [4];  [5];  [6];  [7];  [5]
  1. Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  5. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  6. Carnegie Mellon Univ., Pittsburgh, PA (United States)
  7. PulseRay, Beaver Dams, WI (United States)
+ Show Author Affiliations

High-energy diffraction microscopy (HEDM) constitutes a suite of combined X-ray characterization methods, which hold the unique advantage of illuminating the microstructure and micromechanical state of a material during concurrent in situ mechanical deformation. The data generated from HEDM experiments provides a heretofore unrealized opportunity to validate meso-scale modeling techniques, such as crystal plasticity finite element modeling (CPFEM), by explicitly testing the accuracy of these models at the length scales where the models predict their response. Combining HEDM methods with in situ loading under known and controlled boundary conditions represents a significant challenge, inspiring the recent development of a new high-precision rotation and axial motion system for simultaneously rotating and axially loading a sample. In this paper, we describe the initial HEDM dataset collected using this hardware on an alpha-titanium alloy (Ti-7Al) under in situ tensile deformation at the Advanced Photon Source, Argonne National Laboratory. We present both near-field HEDM data that maps out the grain morphology and intragranular crystallographic orientations and far-field HEDM data that provides the grain centroid, grain average crystallographic orientation, and grain average elastic strain tensor for each grain. Finally, we provide a finite element mesh that can be utilized to simulate deformation in the volume of this Ti-7Al specimen.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1399714
Report Number(s):
LLNL-JRNL-738584; TRN: US1702970
Journal Information:
Integrating Materials and Manufacturing Innovation, Vol. 5, Issue 1; ISSN 2193-9764
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

A Planar Biaxial Experiment Platform for In Situ High-Energy Diffraction Studies journal May 2019
Measuring stress-induced martensite microstructures using far-field high-energy diffraction microscopy journal August 2018

Figures / Tables (6)

Fig. 1(p. 5)figure Fig. 1
Fig. 2(p. 6)figure Fig. 2
Fig. 3(p. 8)figure Fig. 3
Fig. 4(p. 8)figure Fig. 4
Fig. 5(p. 9)figure Fig. 5
Fig. 6(p. 10)figure Fig. 6

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42 ENGINEERING
36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY