期刊论文

Yang, JS

英文

Metals

2075-4701

2023

13

5

829-

10.3390/met13050829

This research was supported by the Science and Technology Project of Hubei Province (2022EHB020), the National Natural Science Foundation of China (U21B2073), and the Science and Technology Innovation Plan of Hunan Province (2022RC3033, 2021GK2009). We also greatly appreciate the support from the Powder Metallurgy Institute of Central South University and CRRC Industrial Research Institute.

本校为第一且通讯机构

Aluminum alloy is an important material used in railway train structures. It is of great significance to repair aluminum alloy through directional energy deposition to reduce cost and improve the performance of the aluminum alloy. In this study, 7N01 aluminum alloy was repaired by means of laser-directed energy deposition (DED) with the powder of Sc-modified Al-Zn-Mg aluminum alloy as raw material. The microstructure and mechanical properties of the repaired specimens were studied through the metallographic microscope, scanning electron microscope, electron backscatter diffraction, universal t...