Measurement of the compressive creep strain rates of the individual phases within a lamellar microstructure

Bartholomeusz, Michael F.; Wert, J. A.

doi:10.1016/1044-5803(94)90142-2

Cited by 9 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This has been done rather extensively in two dimensions using, for example, scratches, etched patterns or grids deposited on the surface as the reference points [12,13,14]. In three dimensions, relatively little has been done.…”

Section: Plastic Strain Fieldmentioning

confidence: 99%

Combining 3DXRD and Absorption Contrast Tomography

Poulsen¹

2004

Springer Tracts in Modern Physics

View full text Add to dashboard Cite

Section: Plastic Strain Fieldmentioning

confidence: 99%

Combining 3DXRD and Absorption Contrast Tomography

Poulsen¹

2004

Springer Tracts in Modern Physics

View full text Add to dashboard Cite

“…Depending on the deformation process and the material there can be local plastic strain variations down to the µm-scale, which are important for the mechanical properties of the material. Spatial variations in plastic deformation have mainly been studied experimentally by observing scratches, etch patterns or grids placed on the surface [1][2][3][4][5][6]. The spatial resolution of these methods depends on the size and the distance between recognizable features before and after a given deformation increment.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the components of plastic displacement gradients in three dimensions

et al. 2004

View full text Add to dashboard Cite

A method for non-destructive characterization of plastic deformation in bulk materials is presented. The method is based on X-ray absorption microtomography investigations using X-rays from a synchrotron source. The method can be applied to materials that contain marker particles, which have an atomic number significantly different from that of the matrix material. Data were acquired at the dedicated microtomography instrument at beamline BW2 at HASYLAB / DESY, for a cylindrical aluminium sample containing W particles with an average particle diameter of 7 µm. The minimum detectable size of the maker particles is 1-2 µm with the present spatial resolution at HASYLAB. The position (x,y,z) of all the detected marker particles within 1 mm 3 was determined as function of strain. The sample was deformed in stepwise compression along the axis of the cylinder. A tomographic scan was performed after each deformation step. After a series of image analysis steps to identify the centre of mass of individual particles and alignment of the successive tomographic reconstructions, the displacements of individual particles could be tracked as a function of external strain. The particle displacements are then used to identify local displacement gradient components, from which the local 3D plastic strain tensor can be determined. This allows us to map the strain components as a function of location inside a deforming metallic solid.

show abstract

Effect of creep strain on microstructural stability and creep resistance of a TiAi/Ti3ai lamellar alloy

Wert

Bartholomeusz

1996

Metall Mater Trans A

View full text Add to dashboard Cite

Measurement of the compressive creep strain rates of the individual phases within a lamellar microstructure

Cited by 9 publications

References 7 publications

Combining 3DXRD and Absorption Contrast Tomography

Combining 3DXRD and Absorption Contrast Tomography

Measurement of the components of plastic displacement gradients in three dimensions

Effect of creep strain on microstructural stability and creep resistance of a TiAi/Ti3ai lamellar alloy

Contact Info

Product

Resources

About