Product Code: ICAL05_M605

Laser Fabricated Porous Coating on NiTi Shape Memory Alloy
Authors:
Hau Chung Man, Laser Processing Group, Advanced Manufacturing Technology Research Centre; Kowloon Hong Kong
Presented at ICALEO 2005

Laser surface alloying technique was applied to syntheses a porous coating on NiTi shape memory alloy. The pores are uniformly distributed and are interconnected with each other in the coating. An average pore size of less than 10 micron was achieved. The porous coating is metallurgically bonded to the substrate NiTi alloy. The microstructure and corrosion properties of the coating will be discussed and compared with that of the laser gas nitrided layer. The possibility of applying the alloy with porous coating in medical use is discussed.