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x-ray tomography

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Image
Published: 01 December 2009
Fig. 14 X-ray tomography measurements of the cavity interlinkage parameter as a function of cavity volume fraction in a sample of aluminum alloy 5083 following deformation in tension at 525 °C and 10 −4 s −1 . Source: Ref 49 More
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006974
EISBN: 978-1-62708-439-0
... Abstract X-ray radiography and computed tomography (CT) are nondestructive testing (NDT) tools particularly well suited to additive manufacturing (AM). A brief overview of NDT for AM is presented in this article, including other NDT methods, followed by identifying the key advantages...
Image
Published: 01 December 2004
Fig. 41 Key elements of an x-ray fluorescence tomography arrangement. I 0 monitor measures the incident-beam intensity. The x-ray fluorescence is monitored while the sample is rotated and translated by a precision stage. Both the step size of the stage motions and the focal spot size More
Image
Published: 01 August 2018
Fig. 5 Components of a computed tomography (CT) image. (a) The x-ray transmission measurements and resultant CT image correspond to a defined slice through the object. (b) The cross-sectional slice can be considered to contain a matrix of volume elements, or voxels. (c) The reconstructed CT More
Image
Published: 01 August 2018
Fig. 19 Industrial computed tomography system x-ray cell for the inspection of large fabricated components and castings with multiaxis parts manipulator More
Image
Published: 15 June 2020
Fig. 10 Comparison between x-ray computed tomography (XCT) scans of as-received (a) water-atomized and (b) gas-atomized nickel-base powders contained in plastic straws. Source: Ref 18 . (c) Reconstructed slice of gas-atomized Ti-6Al-4V powder from synchrotron-based XCT dataset. Note More
Image
Published: 15 June 2020
Fig. 11 Reconstructed x-ray computed tomography data of (a) 17-4 PH stainless steel and (b) Ti-6Al-4V powder are visualized and quantified using Avizo software. Note that the powder is in gray, and the porosity is highlighted in (a) blue and (b) red. More
Image
Published: 30 June 2023
Fig. 8 Scans show the inspection capability of the x-ray computed tomography method in two additively manufactured parts. (a) Hinge bracket crack and surface irregularities detection. (b) Ace cup rings of porous material in the middle section of thickness via laser powder-bed fusion using More
Image
Published: 30 June 2023
Fig. 7 Typical laboratory-based x-ray computed tomography process flow, from data acquisition to measurement evaluation More
Image
Published: 30 June 2023
Fig. 2 Schematic and resulting x-ray computed tomography (CT) scan of an additively manufactured bracket More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005218
EISBN: 978-1-62708-187-0
... topography, two-dimensional X-ray radiography, and ultra-fast three-dimensional X-ray tomography. solidification microstructure solidification two-dimensional X-ray topography two-dimensional X-ray radiography in situ monitoring X-ray imaging synchrotron radiation ultra-fast three-dimensional X...
Image
Published: 31 August 2017
Fig. 12 (a) Microstructure of spheroidal graphite iron alloy derived from x-ray tomography. (b) Representative volume element (RVE) finite-element model. (c) Example of plastic strain distribution in the RVE at horizontal tensile load More
Image
Published: 01 December 2009
Fig. 13 Three-dimensional view of the largest coalesced cavities obtained via x-ray tomography of a sample of aluminum alloy 5083 following deformation in tension at 525 °C and 10 −4 s −1 . Source: Ref 22 More
Image
Published: 01 November 2010
Fig. 11 Comparisons of multiscale simulations of pore morphology with three wedge casting experiments. (a), (b), and (c) are x-ray tomography images of pores in Al-4Cu, Al-7Si, and Al-7.5Si-3.5Cu, respectively. (d), (e), and (f) are simulated pores in these three alloys. Source: Ref 68 More
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006568
EISBN: 978-1-62708-290-7
... of micro-X-ray computed tomography in studying powder porosity characteristics nondestructively. bulk density carney flow test hall flow test particle morphology powder flowability shear properties Powder Flowability in Metal Additive Manufacturing Powder-bed additive manufacturing (AM...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
... sectioning, focused ion beam tomography, atom probe tomography, and X-ray microtomography. Nine case studies are presented that represent the work of the various research groups currently working on 3D microscopy using serial sectioning and illustrate the variants of the basic experimental techniques...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006456
EISBN: 978-1-62708-190-0
... of performance characteristics for film radiography, real-time radiography, and X-ray computed tomography is presented in a table. A functional block diagram of a typical computed tomography system is provided. The article discusses CT scanning geometry that is used to acquire the necessary transmission data...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006967
EISBN: 978-1-62708-439-0
... Computed Tomography X-ray computed tomography (XCT) is introduced in the article “ X-Ray—Radiography and Computed Tomography in Additive Manufacturing ” in this Volume, which reviews the potential application of XCT for NDT of additively manufactured components. One key aspect of XCT is that it has...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
..., radiography, X-ray computed tomography, thermography, low-frequency vibration methods, acoustic emission, eddy current testing, optical holography, and shearography. The article presents some examples are for fiber-reinforced polymer-matrix composites. Many of the techniques have general applicability...
Image
Published: 30 June 2023
Fig. 1 Additive manufacturing (AM) data-collection landscape. XCT, x-ray computed tomography. Adapted from Ref 1 More