Yanfei Ding

Title: Innovations of Yanfei Ding in Shape Memory Alloys and 4D Printing

Introduction

Yanfei Ding is a prominent inventor based in Kaiping, China, known for his significant contributions to the field of shape memory alloys and additive manufacturing. With a total of 4 patents, his work focuses on advancing the technology and applications of high-temperature shape memory alloys and 4D printing methods.

Latest Patents

Ding's latest patents include a NiTiHf high-temperature shape memory alloy with a two-way shape memory effect. This invention is pivotal in the technical field of shape memory alloys and additive manufacturing. It discloses a method that includes alloy powder processing, model building, substrate preheating, and 4D printing forming. The design concept aims to reduce thermal gradients while adhering to environmentally friendly clean production principles. The method employs substrate preheating combined with low laser power and low scanning speed laser powder bed fusion technology, or low preheating temperature electron beam powder bed fusion technology. This approach enhances the formed alloy's lattice compatibility with the NiTi substrate, minimizing residual stress and ensuring high density, excellent tensile mechanical properties, and a two-way shape memory effect.

Another notable patent is the 4D printing method for in-situ regulation of functional properties of nickel-titanium alloys. This invention also belongs to the field of additive manufacturing technology. It outlines a method that involves atomization milling of NiTi alloy bars to produce powder with a specific particle size. The process includes discharge plasma-assisted ball milling to activate powder activity and the addition of nano-sized Ni powder to achieve metallurgical bonding. This innovative approach results in a bulk alloy with uniform composition, structure, and properties.

Career Highlights

Yanfei Ding has worked with esteemed institutions such as South China University of Technology and Guangdong Huayi Plumbing Fittings Industry Co., Ltd. His experience in these organizations has contributed to his expertise in the field of materials science and engineering.

Collaborations

Ding has collaborated with notable colleagues, including Chao Yang and Haizhou Lu, who have played a role in his research and development efforts.

Conclusion

Yanfei Ding's innovative work in shape memory alloys and 4D printing represents a significant advancement in materials science. His patents not only enhance the understanding of these technologies but also pave the way for future applications in various industries.