一、研究领域/方向

1.纳米晶金属块体以及薄膜材料的设计、制备、微观表征

2.纳米金属材料微观组织优化、变形机制与力学行为研究

3.高强度合金的设计与开发

4.金属材料的冲击变形行为

5.先进透射电镜材料表征技术

二、教育及工作经历

2016.9-2022.6 吉林大学 材料学 博士

2022.6-至今 西安交通大学 金属材料 特聘研究员

三、教师简介

中文：

李恒博士长期致力于金属材料形变与强韧化研究，借助先进电子显微技术研究金属中微观缺陷演化与材料宏观力学性能的关联性。申请人近五年来聚焦于纳米尺度下位错与缺陷的相互作用，探索实现金属材料强度与塑、韧性合理匹配的有效方法，取得了系列创新性研究成果。近五年以第一作者/通讯作者在Nature，Acta Materialia等国际高水平学术期刊发表SCI论文5篇。

英文：

Dr. Li Heng has long been committed to the research on the deformation and strengthening/toughening of metallic materials, and uses advanced electron microscopy characterization to study the correlation between the evolution of microscopic defects in metals and the macroscopic mechanical properties of materials. In the past five years, Dr. Li Heng has focused on the interaction between dislocation and defects at the nanoscale, explored effective methods to achieve synergistic improvement of strength, plasticity of metal materials, and achieved a series of innovative research results. In the past five years, she has published 5 SCI papers in international high-level academic journals such as Nature and Acta Materialia as the first author/corresponding author.

四、代表成果

科研项目

西安交通大学-青年拔尖人才计划项目B类

学术成果

1. H. Li, H. Zong, S. Li, S. Jin, Y. Chen, M.J. Cabral, B. Chen, Q. Huang, Y. Chen, Y. Ren, K. Yu, S. Han, X. Ding, G. Sha, J. Lian, X. Liao, E. Ma, J. Sun, Uniting tensile ductility with ultrahigh strength via composition undulation, Nature 604(7905) (2022) 273-279.

2.  Li H, Chen T, Li W, et al. Grain size dependent microstructure and texture evolution during dynamic deformation of nanocrystalline face-centered cubic materials[J]. Acta Materialia, 2021(1):117088.

3. Li H, Liang Y, Zhao L, Hu J, Han S, Lian J. Mapping the strain-rate and grain-size dependence of deformation behaviors in nanocrystalline face-centered-cubic Ni and Ni-based alloys. Journal of Alloys and Compounds 2017, 709: 566-574.

4. Peng Gao; Shuo Sun; Heng Li; Ranming Niu; Shuang Han; Hongxiang Zong; Hao Wang; Jianshe Lian; Xiaozhou Liao; Ultra-strong and thermally stable nanocrystalline CrCoNi alloy,Journal of Materials Science & Technology, 2022, 106: 1-9.

5. Yan Chen; Zeyu Cai;Heng Li; Guixun Sun; Liang Zhao; Shuang Han; Jian An; Jianshe Lian; Optimizing mechanical and tribological properties of electrodeposited NiCo alloy coatings by tailoring hierarchical nanostructures, Surface & Coatings Technology, 2022, 450: 129027-129027