Preparation and printability of high performance 15Cr13MoY alloy steel powder for direct laser deposition |
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| Authors: | Xueting Chen Jing Liang Tong Cui Changsheng Liu Wang Mei |
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| Affiliation: | 1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Key Laboratory for Laser Application Technology of Liaoning Province. School of Materials and Engineering, Northeastern University, Shenyang, People’s Republic of China https://orcid.org/0000-0002-5314-0221;2. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Key Laboratory for Laser Application Technology of Liaoning Province. School of Materials and Engineering, Northeastern University, Shenyang, People’s Republic of China;3. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Key Laboratory for Laser Application Technology of Liaoning Province. School of Materials and Engineering, Northeastern University, Shenyang, People’s Republic of Chinahttps://orcid.org/0000-0003-3097-7608;4. Shenyang Continental Laser Technology Co., Ltd.,, Shenyang, People’s Republic of China |
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| Abstract: | ABSTRACTA novel 15Cr13MoY alloy steel powder used for direct laser deposition was produced using the vacuum induction gas atomisation (VIGA) method. The characteristics and laser printability of the 15Cr13MoY alloy steel powder were studied. The flowability of the spherical powder was 18.98?s/50?g?1, and apparent density was 4.75?g?cm?3. The fabricated 15Cr13MoY alloy steel samples composed of ferrite and bainite were prepared by DLD. The phases primarily consisted of a Fe–Cr–Mn solid solution M7C3, M23C6 and Y2O3. At the optimum laser power of 2200W, the average microhardness of 15Cr13MoY alloy steel sample was 350 HV, the tensile strength was 897?MPa, the yield strength was 704?MPa, the average elongation was 14.5%, and the product of strength and plasticity was 13.0?GPa%. The 15Cr13MoY alloy steel powder produced usingthe VIGA method had good powder characteristics and printability for fabricating the components produced by DLD. |
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| Keywords: | Direct laser deposition 15Cr13MoY alloy steel powder VIGA method powder characteristics laser printability |
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https://orcid.org/0000-0002-5314-0221;2. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Key Laboratory for Laser Application Technology of Liaoning Province. School of Materials and Engineering, Northeastern University, Shenyang, People’s Republic of China;3. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Key Laboratory for Laser Application Technology of Liaoning Province. School of Materials and Engineering, Northeastern University, Shenyang, People’s Republic of China