Understanding variability of metal additive parts

Jun/16/2017
TESCAN Ga FIB-SEM LYRA3 used for preparation of electron-transparent TEM specimens
 
In this work, a Ni-Ti alloy is used as a sensory material in order to quantitatively, and rather rapidly, observe compositional and/or microstructural variability in selective laser melting manufactured parts. These results provide an important first step towards understanding the nature of variability in additively manufactured parts. The TEM specimens used in this study were prepared with the TESCAN Ga FIB-SEM LYRA3 using the standard lift-out method and thinned to electron-transparency at a low ion beam energy.

TEM images of the AM fabricated NiTi samples showing subgrain structure and precipitates decorating the subgrains in the (a) 35 µm hatch distance sample taken from the center of the laser track, the 120 µm hatch distance sample taken from (b) the center of the laser track, and (c) the edge of the laser track.
TEM images of the AM fabricated NiTi samples showing subgrain structure and precipitates decorating the subgrains in the (a) 35 µm hatch distance sample taken from the center of the laser track, the 120 µm hatch distance sample taken from (b) the center of the laser track, and (c) the edge of the laser track.


Original source
 

Related news

Because everything needs to be just right
SAFINA, a.s. a company located right at the heart of Europe has developed...
Jul/26/2017
Sales newsPR news
TESCAN at the MMC 2017
We would like to extend our thanks to all customers and business partners...
Jul/11/2017
PR news
TESCAN presence in the South-East Asian high-tech
TESCAN GAIA in Fabrinet – A Trusted Manufacturing Partner of the World...
Workshop on Field emission scanning electron microscopy-based lithography
Jointly organized by the Advanced Instrumentation Research Facility at...
Jun/06/2017
PR news