Yilei Shi

TL;DR: In this article, a fiber laser butt welding on the dissimilar joint between reduced-activation ferrite/martenstic CLF-1 steel and 316 L stainless steel with a thickness of 10 mm was performed.

TL;DR: In this paper, the impact toughness, microstructure, phase compositions and impact fractures of the joints with different preheating, post welding heat treatment (PWHT) and heat inputs were investigated systematically and the influencing rules and mechanisms were analyzed.

TL;DR: In this paper, the microstructural differences between the two types of joints and their effect on the impact properties were discussed, while the microstructure of EBW joint failed to show the improvement of impact toughness, and the extraordinary impact toughness could be attributed to the high scattering band.

TL;DR: In this paper, electron beam welding was applied to two T-joints without base plates, and achieved the single-pass welding and double-sided forming welding of CLF-1 thick steel plates via the optimization of technological parameters.

TL;DR: In this paper , the defect formation process of EBAM in high preheating temperature and high vacuum environment is more complex and difficult to fully understand, and establishing the relationship between defects formation mechanisms and processing stability is of great significance to control defects and improve properties.