Abstract
In this study, in situ synchrotron X-ray experiments with wide-angle X-ray scattering (WAXS) and small-angle X-ray scattering (SAXS) detectors were performed on two pure magnesium materials produced by powder metallurgy. According to SAXS analysis, each of the two materials has a porosity of less than 0.5%. Line broadening analysis was performed on diffraction patterns collected by WAXS to analyze the dislocation evolution during material deformation. In both materials, <a>-type dislocation activities dominate the tensile deformation. The influence of grain size and texture on the different tensile behaviors of these two materials is also discussed.
Highlights
Yield strength and ductility are two key mechanical properties for metallic structural materials.these two properties are usually exclusive of each other
The
Sample, the grain size is close to the size of the original powders, which have a lognormal grain size
Summary
Yield strength and ductility are two key mechanical properties for metallic structural materials. These two properties are usually exclusive of each other. We use in situ synchrotron X-rays to analyze the dislocation density evolution in two pure Mg materials produced by powder metallurgy (PM). Metals 2020, 10, x FOR PEER REVIEW two materials by using the small-angle X-ray scattering (SAXS) profile [11,12]. We use in situ synchrotron X-rays to analyze the dislocation density evolution in dislocation evolution during material were(PM). We will furtherand examine twotwo materials by using the small-angle scattering (SAXS) profile evolution dislocation evolution during deformation were analyzed. We will further examine how the grain size influences the dislocation types [22,23,24,25,26,27,28] during their deformation
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