@misc{wang_selective_laser_2019, 
author={Wang, D., Zhou, Y., Shen, J., Liu, Y., Li, D., Zhou, Q., Sha, G., Xu, P., Ebel, T., Yan, M.},
title={Selective laser melting under the reactive atmosphere: A convenient and efficient approach to fabricate ultrahigh strength commercially pure titanium without sacrificing ductility},
year={2019},
howpublished = {journal article},
doi = {https://doi.org/10.1016/j.msea.2019.138078},
abstract = {This study presents a novel approach for the fabrication of commercially pure titanium (CP–Ti) components. The approach conferred superb strength to CP-Ti without sacrificing its ductility. A yield strength of 807 MPa combined with 19.15% elongation was realized through selective laser melting (SLM) by using a high-power laser and incorporating solute atoms from the Ar−N2 reactive atmosphere. Mechanical properties and microstructures of the as-printed CP-Ti were systematically investigated. Transmission electron microscopy, electron backscatter diffraction, and atom probe tomography were employed to reveal the mechanism underlying the in-situ reaction between CP-Ti and the reactive atmosphere. Results suggested that nitrogen generally dissolved in the α′-Ti matrix as interstitial solute atoms. The beneficial N content has a critical limit of ~0.43 wt%. The ductility of CP-Ti will decrease drastically if its N content exceeds this limit. A constitutive model was developed for describing the tensile deformation behavior of the in-situ strengthened CP-Ti over various solute contents and grain sizes. This work demonstrates a promising methodology for the fabrication of high-performance metallic components and extends the fundamental understanding of SLM process under the reactive atmosphere.},
note = {Online available at: \url{https://doi.org/10.1016/j.msea.2019.138078} (DOI). Wang, D.; Zhou, Y.; Shen, J.; Liu, Y.; Li, D.; Zhou, Q.; Sha, G.; Xu, P.; Ebel, T.; Yan, M.: Selective laser melting under the reactive atmosphere: A convenient and efficient approach to fabricate ultrahigh strength commercially pure titanium without sacrificing ductility. Materials Science and Engineering  A. 2019. vol. 762, 138078. DOI: 10.1016/j.msea.2019.138078}}