Microstructures and Mechanical Properties of H13 Tool Steel Fabricated by Selective Laser Melting
文献类型：期刊论文
| 作者 | Lei, Fei2; Wen, Tao2; Yang, Feipeng2; Wang, Jianying2; Fu, Junwei1; Yang, Hailin2; Wang, Jiong2; Ruan, Jianming2; Ji, Shouxun3 |
| 刊名 | MATERIALS
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 15期号:7页码:15 |
| 关键词 | H13 tool steel selective laser melting microstructure mechanical properties |
| DOI | 10.3390/ma15072686 |
| 通讯作者 | Yang, Hailin(y-hailin@csu.edu.cn) ; Wang, Jiong(wangjionga@csu.edu.cn) |
| 英文摘要 | H13 stool steel processed by selective laser melting (SLM) suffered from severe brittleness and scatter distribution of mechanical properties. We optimized the mechanical response of as-SLMed H13 by tailoring the optimisation of process parameters and established the correlation between microstructure and mechanical properties in this work. Microstructures were examined using XRD, SEM, EBSD and TEM. The results showed that the microstructures were predominantly featured by cellular structures and columnar grains, which consisted of lath martensite and retained austenite with numerous nanoscale carbides being distributed at and within sub-grain boundaries. The average size of cellular structure was similar to 500 nm and Cr and Mo element were enriched toward the cell wall of each cellular structure. The as-SLMed H13 offered the yield strength (YS) of 1468 MPa, the ultimate tensile strength (UTS) of 1837 MPa and the fracture strain of 8.48%. The excellent strength-ductility synergy can be attributed to the refined hierarchical microstructures with fine grains, the unique cellular structures and the presence of dislocations. In addition, the enrichment of solute elements along cellular walls and carbides at sub-grain boundaries improve the grain boundary strengthening. |
| 资助项目 | National Key Research and Development Program of China[2020YFB0311300ZL] ; National Natural Science Foundation of China[52071343] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000780541800001 |
| 出版者 | MDPI |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/178717]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Yang, Hailin; Wang, Jiong |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China 3.Brunel Univ London, Brunel Ctr Adv Solidificat Technol BCAST, Uxbridge UB8 3PH, Middx, England |
| 推荐引用方式 GB/T 7714 | Lei, Fei,Wen, Tao,Yang, Feipeng,et al. Microstructures and Mechanical Properties of H13 Tool Steel Fabricated by Selective Laser Melting[J]. MATERIALS,2022,15(7):15. |
| APA | Lei, Fei.,Wen, Tao.,Yang, Feipeng.,Wang, Jianying.,Fu, Junwei.,...&Ji, Shouxun.(2022).Microstructures and Mechanical Properties of H13 Tool Steel Fabricated by Selective Laser Melting.MATERIALS,15(7),15. |
| MLA | Lei, Fei,et al."Microstructures and Mechanical Properties of H13 Tool Steel Fabricated by Selective Laser Melting".MATERIALS 15.7(2022):15. |
入库方式： OAI收割
来源：海洋研究所
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