报告题目：3D打印多孔结构钛合金的力学行为

报告人：张来昌 教授

主持人（邀请人）：邱丰 教授

报告时间：2021年6月9日19:00-20:30

报告地点：腾讯会议 会议ID：472 867 959

主办单位：汽车材料教育部重点实验室，吉林大学材料科学与工程学院

报告摘要：Beta-type titanium porousstructures are a new class of solution for implants because they offerexcellent combination of high strength and low Young’s modulus. This presentationstudies the influence of porosity variation in 3D printing (via electron beammelting (EBM)-produced and selective laser melting (SLM)) produced beta-typetitanium alloy samples on the mechanical properties including super-elasticproperty, Young’s modulus, compression strength, energy absorption and fatigueproperties. Compared with Ti-6Al-4V samples, the beta-type titanium poroussamples exhibit a higher normalized fatigue strength owing to super-elasticproperty, greater plastic zone ahead of the fatigue crack tip and the crackdeflection behaviour. Stress distribution results, obtained by finite elementmethods, coupled with the investigation of the slip bands generated have beenused to reveal the plasticity mechanism and local stress concentrations foreach structure. The topology optimized structure exhibits the best balance ofbending and buckling stress with a high elastic energy absorption, a lowYoung’s modulus and a high compression strength.

报告人简介：张来昌教授，澳大利亚埃迪斯∙科文大学终身教授及机械工程学科负责人、德国“洪堡”学者。张教授长期从事新型金属材料的制备、结构和性能，尤其是新型钛合金的制备工艺和性能、亚稳态合金的制备和性能、3D打印技术在新材料中的应用等领域的研究。迄今在Progress in MaterialsScience、Advanced Materials、Advanced FunctionalMaterials、Acta Materialia、Applied Materials Today,Additive Manufacturing、Corrosion Science、Scripta Materialia等著名期刊发表SCI论文250余篇，其中有ESI高被引论文20篇，科瑞唯安H指数52。部分研究成果已经在澳大利亚广播电视台（ABC）新闻频道全球直播采访、澳大利亚《访谈》（The Conversation）采访报道、我国中央电视台（CCTV-4）、新华社和《科技日报》等知名媒体报道。现担任Frontiersin Materials副编辑、 Advanced Engineering Materials、Metals、、Materials Science and Technology、Advances in Materials Research: An International Journal等SCI学报编委。