ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The femtosecond laser ablation has been investigated on second generation single crystalsuperalloy CMSX-4 using a commercial titanium:sapphire laser system (λ = 780nm, τ = 120 fs).The ablation thresholds of bulk alloy CMSX-4 have been determined as a function of the pulsenumber (1, 10, 100, 1000) in air, argon gas and vacuum. The results indicate that the multiple-pulsethreshold of this material decreased with increasing the pulse number in all the cases. For the samepulse number, the threshold changed in the descending order: air, vacuum and argon gas. Theincubation coefficient in air has been determined: ξ = 0.86 ± 0.03. The preliminary results showedthe better quality of femtosecond laser machining of CMSX-4 in vacuum and argon gas than in air
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.1309.pdf
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