应国家冷轧板带装备及工艺工程技术研究中心邀请，芬兰国家技术研究中心卢松研究员将莅临中心，为广大师生作专题学术报告。

报告题目：Negative stacking fault energy in metastable face-centered cubic alloys（亚稳态面心立方合金中的负堆垛层错能）

报告时间：2026年7月2日（星期四）10：30-11：30

报告地点：轧制中心320会议室

报告专家：卢松

专家简介：

卢松，芬兰国家技术研究中心高级科学家，曾任瑞典皇家理工学院研究员。硕士毕业于中国科学院金属所，博士毕业于瑞典皇家理工学院。长期致力于第一性原理密度泛函理论（DFT）计算，聚焦于材料晶体缺陷与力学性能，对十余种合金体系的层错等缺陷进行了系统研究，并将DFT方法应用于因瓦合金、TWIP、TRIP合金设计，实现了特定合金的开发与工业化推广应用。在国际学术刊物上发表60余篇研究论文，包括Acta Mater (15篇)、PRB等。获瑞典战略研究基金会、瑞典钢铁协会和芬兰科学院等项目资助，曾担任瑞典战略基金会交流项目评审委员会委员。

报告内容：

Stacking fault energy (SFE) plays an important role in deformation mechanism and mechanical properties of Face-Centered Cubic (FCC) metals and alloys. Since early 60s, experimental methods for determining the SFE have been developed. Nowadays, ab initio methods based on the density functional theory (DFT) calculations and Calphad method are used for SFE calculations too. Interestingly, deviations between the results obtained by the different methods are frequently observed in some alloy systems like steels and high-entropy alloys. I will discuss the details about the methods and explore the possible reasons. I will also discuss the correlation between the negative SFE and the deformation mechanisms (twinning and martensitic transformation) and show cases that we design novel transformation induced plasticity (TRIP) and twinning-induced plasticity (TWIP) alloys using the calculated SFEs.