Wenqi Li

TL;DR: In this paper, a spatially resolved acoustic spectroscopy (SRAS) technique is applied to prepare additively manufactured material to measure the material properties and identify defects, and the number of pore size remains the same for 140 W to 190 W melting power (mean: 115-119 μm optical and 134-137 μm velocity).

TL;DR: In this article, a spatially resolved acoustic spectroscopy (SAS) is used to map the grain structure of a material. But the spatial and velocity resolution can be adjusted by simple modification to the system; this is discussed in detail by comparison of theoretical expectations with experimental data.

TL;DR: It is shown here that measuring the SAW velocity in multiple directions can be used to determine the crystallographic orientation of grains, which has great potential for complementary measurements or even for replacing established orientation determination and imaging techniques.

TL;DR: In this article, the performance of in-situ inspection methods for additive manufacturing is evaluated using spatially resolved acoustic spectroscopy and optical coherence tomography for laser melting and selective laser sintering.

TL;DR: In this paper, the electrochemical jet processing (EJP) was applied to polycrystalline Al and Ni surfaces to generate three-colour orientation contrast maps, and the resulting surfaces were analyzed to generate 3D contrast maps.