A Review of Self-healing Metals: Fundamentals, Design Principles and Performance

作     者：Shasha Zhang Niels van Dijk Sybrand van der Zwaag Shasha Zhang;Niels van Dijk;Sybrand van der Zwaag

作者机构：College of Materials and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 211106China Key Laboratory of Materials Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics)Ministry of Industry and Information TechnologyNanjing 211106China Fundamental Aspects of Materials and Energy GroupFaculty of Applied SciencesDelft University of TechnologyMekelweg 152629 JB DelftThe Netherlands Novel Aerospace Materials GroupFaculty of Aerospace EngineeringDelft University of TechnologyKluyverweg 12629 HS DelftThe Netherlands School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2020年第33卷第9期

页      面：1167-1179页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(Grant No.51701095) the Natural Science Foundation of Jiangsu Province,China(Grant No.BK20170798) 

主　　题：Metal Self-healing Creep behavior Fatigue damage Irradiation Coating 

摘      要：Self-healing metals possess the capability to autonomously repair structural damage during service. While self-healing concepts remain challenging to be realized in metals and metallic systems due to the small atomic volume of the mobile atoms, the slow diffusion unless at high temperatures and the strong isotropic metallic bonds, the scientific interest has increased sharply and promising progress is obtained. This article provides a comprehensive and updated review on the developments and limitations associated with the various modes of potentially healable damage induced in metals and alloys, i.e., stressinduced damage, irradiation-induced damage in bulk materials and contact damage in corrosion protective coatings. The spontaneous intrinsic healing mechanisms not requiring external assistance other than the material operating at the right temperature and an assisted healing mechanism with external intervention are reviewed. Promising strategies to achieve self-healing in metals are identified. Finally, we give some prospects for future research directions in self-healing metals.