In-situ white beam microdiffraction study of the deformation behavior in polycrystalline magnesium alloy during uniaxial loading

Conference · Fri Jan 19 00:00:00 EST 2007

OSTI ID:935406

Source, Advanced Light; Tamura, Nobumichi; Lynch, P A; Stevenson, A W; Liang, D; Parry, D; Wilkins, S; Madsen, I C; Bettles, C; Tamura, N; Geandier, G

Scanning white beam X-ray microdiffraction has been used to study the heterogeneous grain deformation in a polycrystalline Mg alloy (MgAZ31). The high spatial resolution achieved on beamline 7.3.3 at the Advanced Light Source provides a unique method to measure the elastic strain and orientation of single grains as a function of applied load. To carry out in-situmeasurements a light weight (~;;0.5kg) tensile stage, capable of providing uniaxial loads of up to 600kg, was designed to collect diffraction data on the loading and unloading cycle. In-situ observation of the deformation process provides insight about the crystallographic deformation mode via twinning and dislocation slip.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Advanced Light Source Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 935406
• Report Number(s): LBNL-740E; TRN: US0804290
• Resource Relation: Conference: 9th International Conference of the American Institute of Physics; Related Information: Journal Publication Date: 01/19/2007
• Country of Publication: United States
• Language: English

Related Subjects

36
ADVANCED LIGHT SOURCE
ALLOYS
DEFORMATION
DIFFRACTION
DISLOCATIONS
MAGNESIUM ALLOYS
ORIENTATION
PHYSICS
SLIP
SPATIAL RESOLUTION
STRAINS
TWINNING
UNLOADING
microdiffraction magnesium deformation