TY - GEN TI - Ultrasonics for monitoring melt pool dynamics and in situ sensing of microstructure during powder bed fusion additive manufacturing AU - Christopher M. Kube AU - Nathan Kizer AU - Abdalla Nassar AU - Edward Reutzel AU - Haifeng Zhang AU - Anthony Rollett AU - Tao Sun JO - The Journal of the Acoustical Society of America PY - 2021 DO - 10.1121/10.0008378 UR - https://doi.org/10.1121/10.0008378 ER -