| 马铮杰,任灿,严彪,王联凤,程灵钰.316L不锈钢与CaSiO3复合材料选择性激光熔化制备工艺[J].有色金属材料与工程,2018,39(1):31-37. |
| 316L不锈钢与CaSiO3复合材料选择性激光熔化制备工艺 |
| Preparation and Creation of the Composite of 316L Stainless Steel and CaSiO3 for Bone Repairing Implantation |
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| DOI：10.13258/j.cnki.nmme.2018.01.006 |
| 中文关键词: 316L不锈钢 金属陶瓷复合材料 选择性激光熔化 微观组织 |
| 英文关键词:316L stainless steel composite powder material selective laser melting microstructure |
| 基金项目:国家军工委支持项目（17-163-13-ZT-010-036-02）；国家大学生创新项目（0500107082） |
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| 中文摘要: |
| 以纳米CaSiO3粉末和316L不锈钢粉末为原料，利用高能球磨和选择性激光熔化（SLM）技术成功制备出316L/nCaSiO3医用复合材料，并对其进行微观组织观察及力学性能测试。结果显示，复合材料中CaSiO3含量是决定产品最终结构缺陷与稳定性的一个重要因素。在SLM过程中，扫描速度和激光功率决定了熔融是否充分完全，熔融不充分会使样品中产生大量缺陷，熔融过度会使样品性能不稳定。另外，增加激光功率，减小扫描速度，可以有效地提高样品的致密度。综合考虑，选用316L不锈钢/5CaSiO3（CaSiO3的质量分数为5%）复合材料，在160 W，400 mm/s条件下制备的样品性能稳定。 |
| 英文摘要: |
| Using nano CaSiO3 powders and 316L stainless steel powders successfully composed the biocomposite 316L/nCaSiO3 by means of high-energy ball-milling and selective laser melting(SLM) technology.Samples of 316L/nCaSiO3 were then subjected to microstructure observations and mechanical property inspection.The results indicate that the CaSiO3 content in composites is a significant factor to determine the structural defects and stability of final products.During SLM,scanning speed and laser power determine the completeness of melting.Insufficient melting results in a large number of defects in the sample.Excessive melting leads to unstable properties of the sample.Increasing of laser power and decreasing of scanning speed can effectively improve the sample density.According to the present results,composite containing 5% CaSiO3,under laser power of 160 W and scanning speed of 400 mm/s have the highest density and least defect. |
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