@ARTICLE{Joo_Y.-A._Microstructure_2018, author={Joo, Y.-A. and Yoon, T.-S. and Park, S.-H. and Lee, K.-A.}, volume={vol. 63}, number={No 3}, journal={Archives of Metallurgy and Materials}, pages={1459-1462}, howpublished={online}, year={2018}, publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences}, publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences}, abstract={Fe-Cr-B alloy is a material with precipitation of boride inside Fe matrix, and it features outstanding hardness and wear resistance properties. However, Fe-Cr-B alloy is a difficult material to process, making it difficult to use as a bulk type structure material which requires delicate shapes. This study attempted to manufacture Fe-Cr-B alloy using a 3D printing process, laser metal deposition. This study also investigated the microstructure, hardness and compression properties of the manufactured alloy. Phase analysis results is confirmed that α-Fe phase as matrix and (Cr, Fe)2B phase as reinforcement phase. In the case of (Cr, Fe)2B phase, differences were observed according to the sample location. While long, coarse, unidirectional needle-type boride phases (~11 μm thickness) were observed in the center area of the sample, relatively finer boride phases (~6 μm thickness) in random directions were observed in other areas. At room temperature compression test results confirmed that the sample had a compression strength is approximately 2.1 GPa, proving that the sample is a material with extremely high strength. Observation of the compression fracture surface identified intergranular fractures in areas with needle-type boride, and transgranular fractures in areas with random borides. Based on this results, this study also reviewed the deformation behavior of LMD Fe-Cr-B alloy in relation to its microstructures.}, type={Artykuły / Articles}, title={Microstructure and Compression Properties of Fe-Cr-B Alloy Manufactured using Laser Metal Deposition}, URL={http://www.czasopisma.pan.pl/Content/108031/PDF/AMM-2018-3-51-Kee-Anh%20Lee.pdf}, doi={10.24425/123828}, keywords={Fe-Cr-B composite, Laser Metal Deposition, Bulk type, microstructure, Compressive properties}, }