The Influence of Laser Drilling Process on the Microstructural Changes of Nickel Based Superalloy
Nimonic 263 is an alloy with superior mechanical strength and creep resistance at high temperatures and pressure, good formability, and corrosion and oxidation resistance. Due to their high beam density and very short pulses which reduces the heat affected zone (HAZ) Nd:YAG lasers are very suitable for materials drilling. In this paper, the Nimonic 263 sheets, thickness of 2 mm, are laser drilled with various parameters. The influence of laser drilling process on microstructural changes along with the geometrical characteristics are analysed and discussed.
Nicușor Alin Sîrbu and Aurel Valentin Bîrdeanu
S. Petronić et al., "The Influence of Laser Drilling Process on the Microstructural Changes of Nickel Based Superalloy", Advanced Materials Research, Vol. 1146, pp. 134-141, 2018