报告题目：Additive Manufacturing of Metallic Materials（金属材料增材制造）
报告人： Prashanth Konda Gokuldoss教授，塔林理工大学
报告时间：2023年4月12日（星期三）上午9:00 -11:00
报告地点：国家金属材料近净成形工程技术研究中心（38号楼）303会议室
欢迎广大师生踊跃参加。
机械与汽车工程学院
2023年4月10日
报告人简介：
Prashanth Konda Gokuldoss教授，2013年获得德累斯顿工业大学博士学位，先后任德国莱布尼茨固体与材料研究所博士后、瑞典山特维克集团工程师和挪威科技大学副教授，2018年获得塔林理工大学终身教授职位（该校最年轻教授）。研究领域为金属材料增材制造，发表SCI论文226篇，第一作者和通讯作者论文94篇，最后作者论文78篇，包括Acta Materialia、NPG Asia Materials、Additive Manufacturing、International Journal of Plasticity等知名期刊。Scopus引用8250次，Scopus H因子为44，撰写或编著专著3本。获多个知名协会和著名会议组织的行业内知名奖项，包括国际先进材料协会科学家奖、国际亚稳及纳米材料年会优秀青年科学家奖等，获得欧洲区域发展基金、挪威教育部和爱沙尼亚研究委员会的基金资助。入选科技部高端外国专家和广州市科学技术局外国高端人才（A 类）。
报告摘要：
Laser based powder bed fusion processes like the selective laser melting (SLM) is one of the additive manufacturing processes used to produce 3-D metal parts by selective melting of powders dictated by CAD data. Because of the high degree of freedom given by processing through additive manufacturing, it is possible to build parts with extremely complex geometries that would otherwise be difficult or impossible to produce using conventional manufacturing processes. However, until now, only conventional alloys like the AlSi10Mg, 316L, Ti6Al4V, etc. that either are developed for cast or wrought processes have been used for fabrication. Some of the alloys work well for the additive manufacturing process like the Al12Si, AlSi10Mg, because they have good fluidity and are readily weldable. Nevertheless, most of the materials fabricated by SLM show superior mechanical properties than their case counterparts. Even though superior mechanical properties were recorded, there are reports showing pre-mature failure of the materials. The present talk will focus on the different way of tuning the mechanical properties of the SLM-fabrications materials and also the reason behind achieving improved mechanical properties during the SLM process.
中文摘要：
激光粉末床熔融金属增材制造工艺根据切片三维模型数据在预先设计的区域选择性熔化粉末制备三维金属零件，具有传统制造方法无法实现的复杂几何形状、个性化和多功能特征。然而，到目前为止增材制造合金体系多聚集在传统铸造合金体系如AlSi10Mg、316L、Ti6Al4V、Al12Si等，而且增材制造金属具有与传统工艺制备的金属不一样的机械力学性能，特别是金属增材制造材料存在过早失效的现象。本次报告将重点讨论增材制造合金体系设计和力学性能的调控机制。
