Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser
Abstract
The interaction of Ti:sapphire laser, operating at high repetition rate of 75 MHz, with nickel-based super-alloy Inconel 600 was studied. The laser was emitting at 800 nm and ultrashort pulse duration was 160 fs. Nickel-based super-alloy surface modification was studied in a low laser energy/fluence regime of maximum 20 nJ-15 mJ/cm(2), for short (10 s) and long irradiation times (range of minutes). Surface damage threshold of this material was estimated to be 1.46 nJ, i.e., 0.001 J/cm(2) in air. The radiation absorbed from Ti:sapphire laser beam under these conditions generates at the surface a series of effects. such as direct material vaporization, plasma creation, formation of nano-structures and their larger aggregates, damage accumulation, etc. Laser induced surface morphological changes observed on Inconel 600 were: (1) intensive removal Of Surface material with crater like features; (2) material deposition at near and farther periphery and creation of nano-aggregates/nano-struct...ures; (3) sporadic micro-cracking of the inner and outer damage area. Generally. features created on nickel-based super-alloy surface by high repetition rate femtosecond pulses are characterized by low inner/outer damage diameter of less than 11 mu m/30 mu m and relatively large depth on the order of 150 mu m, in both low (10 s) and high (minutes) irradiation time regimes.
Keywords:
Femtosecond / Laser-matter interaction / Nickel-based super-alloy Inconel 600 / Ti:sapphire laserSource:
Laser and Particle Beams, 2009, 27, 4, 699-707Publisher:
- Cambridge Univ Press, New York
Funding / projects:
- Spektroskopska i laserska istraživanja površina, plazme i životne sredine (RS-MESTD-MPN2006-2010-142065)
- Kvantna i optička interferometrija (RS-MESTD-MPN2006-2010-141003)
DOI: 10.1017/S0263034609990425
ISSN: 0263-0346
WoS: 000273141300017
Scopus: 2-s2.0-74049141149
Collections
Institution/Community
Poljoprivredni fakultetTY - JOUR AU - Stasić, J. AU - Gaković, B. AU - Krmpot, A. AU - Pavlović, Vladimir AU - Trtica, M. AU - Jelenković, Branislav PY - 2009 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/2084 AB - The interaction of Ti:sapphire laser, operating at high repetition rate of 75 MHz, with nickel-based super-alloy Inconel 600 was studied. The laser was emitting at 800 nm and ultrashort pulse duration was 160 fs. Nickel-based super-alloy surface modification was studied in a low laser energy/fluence regime of maximum 20 nJ-15 mJ/cm(2), for short (10 s) and long irradiation times (range of minutes). Surface damage threshold of this material was estimated to be 1.46 nJ, i.e., 0.001 J/cm(2) in air. The radiation absorbed from Ti:sapphire laser beam under these conditions generates at the surface a series of effects. such as direct material vaporization, plasma creation, formation of nano-structures and their larger aggregates, damage accumulation, etc. Laser induced surface morphological changes observed on Inconel 600 were: (1) intensive removal Of Surface material with crater like features; (2) material deposition at near and farther periphery and creation of nano-aggregates/nano-structures; (3) sporadic micro-cracking of the inner and outer damage area. Generally. features created on nickel-based super-alloy surface by high repetition rate femtosecond pulses are characterized by low inner/outer damage diameter of less than 11 mu m/30 mu m and relatively large depth on the order of 150 mu m, in both low (10 s) and high (minutes) irradiation time regimes. PB - Cambridge Univ Press, New York T2 - Laser and Particle Beams T1 - Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser EP - 707 IS - 4 SP - 699 VL - 27 DO - 10.1017/S0263034609990425 ER -
@article{ author = "Stasić, J. and Gaković, B. and Krmpot, A. and Pavlović, Vladimir and Trtica, M. and Jelenković, Branislav", year = "2009", abstract = "The interaction of Ti:sapphire laser, operating at high repetition rate of 75 MHz, with nickel-based super-alloy Inconel 600 was studied. The laser was emitting at 800 nm and ultrashort pulse duration was 160 fs. Nickel-based super-alloy surface modification was studied in a low laser energy/fluence regime of maximum 20 nJ-15 mJ/cm(2), for short (10 s) and long irradiation times (range of minutes). Surface damage threshold of this material was estimated to be 1.46 nJ, i.e., 0.001 J/cm(2) in air. The radiation absorbed from Ti:sapphire laser beam under these conditions generates at the surface a series of effects. such as direct material vaporization, plasma creation, formation of nano-structures and their larger aggregates, damage accumulation, etc. Laser induced surface morphological changes observed on Inconel 600 were: (1) intensive removal Of Surface material with crater like features; (2) material deposition at near and farther periphery and creation of nano-aggregates/nano-structures; (3) sporadic micro-cracking of the inner and outer damage area. Generally. features created on nickel-based super-alloy surface by high repetition rate femtosecond pulses are characterized by low inner/outer damage diameter of less than 11 mu m/30 mu m and relatively large depth on the order of 150 mu m, in both low (10 s) and high (minutes) irradiation time regimes.", publisher = "Cambridge Univ Press, New York", journal = "Laser and Particle Beams", title = "Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser", pages = "707-699", number = "4", volume = "27", doi = "10.1017/S0263034609990425" }
Stasić, J., Gaković, B., Krmpot, A., Pavlović, V., Trtica, M.,& Jelenković, B.. (2009). Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser. in Laser and Particle Beams Cambridge Univ Press, New York., 27(4), 699-707. https://doi.org/10.1017/S0263034609990425
Stasić J, Gaković B, Krmpot A, Pavlović V, Trtica M, Jelenković B. Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser. in Laser and Particle Beams. 2009;27(4):699-707. doi:10.1017/S0263034609990425 .
Stasić, J., Gaković, B., Krmpot, A., Pavlović, Vladimir, Trtica, M., Jelenković, Branislav, "Nickel-based super-alloy Inconel 600 morphological modifications by high repetition rate femtosecond Ti:sapphire laser" in Laser and Particle Beams, 27, no. 4 (2009):699-707, https://doi.org/10.1017/S0263034609990425 . .