Dedi Priadi
ABSTRACT
PLD Nd: YAG is one of the most common types of laser which is now used for many applications. In the manufacturing industry, this kind of laser is used for engraving, etching, marking a variety of metals and plastics, or for metal surface enhancement by thin-film deposit. Nd: YAG (Neodymium - doped yttrium aluminum garnet; Nd: Y3 Al5 O12) is a dominant solid-state laser material, which used as a lasing medium. YAG is a stable, very hard, isotropic crystal, with high optical quality. The power density required to create such a laser beam depends on the properties of the target material, the laser wavelength, and the laser energy.
The thin film which is made from PLD Nd: YAG will be used as a coating film for insert pin SKD 61. Insert pin SKD 61 is a tool steel pin used at the Aluminum Casting Industry, which the function as a die component. With this coating research, there is a possibility to increase several pin surfaces mechanical properties such as hardness, roughness, together with adhesion capability, support by microstructure and chemical composition of the coating film.
The research stage was carried out by making a research sample, which is made from SKD 61, coat by AlCr 70:30. PLD Nd: YAG process with 2 types of wavelength (1064 nm & 532 nm), 2 group energies (90 m Joule - 120 m Joule - 140 m Joule for 1064 nm wavelength, and 50 m Joule - 70 m Joule - 90 m Joule for 532 nm wavelength), in a vacuum. The deposition of thin layer samples was characterized using FESEM, SEM, EDS, VDI, Roughness tester and Micro Hardness Vickers. The characterization testing was done at the Research Centre for Physics LIPI and PT XYZ Laboratory.
FESEM results came out with some amorf material from 1064 nm group wavelength, and some melt material from 532 nm group wavelength. SEM-EDS results came out with fine surface from 1064 nm wavelength and coarse surface from 532 nm wavelength. The chemical composition is relatively stable with AlCr 70:30.as the thin film. The average surface hardness of the 1064 nm group is 561 HV, which is harder than 499 HV from the 532 nm group. Also, the adhesion capability of 1064 nm group is HF1, the same with 532 nm group which is HF1. The surface roughness of the 1064 nm group is 0,051 μ m (Ra), smoother than 532 nm group which is 0,907 μ m (Ra).
- Pokropivny, V., et al., 2007. Introduction to nanomaterials and nanotechnology. Tartu University Press Ukraine.Google Scholar
- Yang, X., et al., 2000. Pulsed laser deposition of aluminum tris-8-hydroxyquinline thin films. Thin Solid Films. 358(1-2): p. 187--190.Google ScholarCross Ref
- Willmott, P. and J. Huber, 2000. Pulsed laser vaporization and deposition. Reviews of Modern Physics. 72(1): p. 315.Google ScholarCross Ref
- Chrisey, D.B. and G.K. Hubler, 1994. Pulsed laser deposition of thin films.Google Scholar
- Schneider, C.W. and T. Lippert, 2010. Laser ablation and thin film deposition, in Laser Processing of Materials. Springer. p. 89--112.Google Scholar
- Canavarro, D., 2015. Pulsed Laser Deposition.Google Scholar
- Geusic, J., H. Marcos, and L. Van Uitert, 1964. Laser oscillations in Nd-doped yttrium aluminum, yttrium gallium and gadolinium garnets. Applied Physics Letters, 4(10): p. 182--184.Google ScholarCross Ref
- Koechner, W., 2013. Solid-state laser engineering. Vol. 1: Springer.Google Scholar
- Zarem, H., K. Vahala, and A. Yariv, 1989. Gain spectra of quantum wires with inhomogeneous broadening. IEEE journal of quantum electronics. 25(4): p. 705--712.Google Scholar
- Eason, R., 2007. Pulsed laser deposition of thin films: applications-led growth of functional materials: John Wiley & Sons.Google Scholar
- Han, Q.-y., 2015. Mechanism of die soldering during aluminum die casting. China foundry. 12(2).Google Scholar
- Khun, N., et al., 2017. Effect of heat treatment temperature on microstructure and mechanical and tribological properties of cold sprayed Ti-6Al-4V coatings. Tribology Transactions. 60(6): p. 1033--1042.Google ScholarCross Ref
- Park, S., M. Kim, and C. Park, 2007. Mechanical properties and microstructure evolution of the nano WC-Co coatings fabricated by detonation gun spraying with post heat treatment. Materials Science and Engineering: A. 449: p. 894-897Google ScholarCross Ref
Index Terms
- PLD Nd: YAG Process for Coating Pin Insert SKD 61 which used for Aluminum Die Casting
Recommendations
Piezoelectric aluminum nitride thin-films: A review of wet and dry etching techniques
AbstractAluminum nitride (AlN) is a technologically relevant material that can be deposited at low temperatures in the form of thin-films while preserving most of its physical properties. Consequently, it is widely adopted in ...
Graphical abstractDisplay Omitted
Highlights- Wet etching of AlN can be performed with H3PO4, KOH, TMAH, HF and AZ400K.
- ...
Ferroelectric Pb(Mg1/3Nb2/3)O3 thin films by PLD at varying oxygen pressures
Oxygen deposition pressure exerts a strong impact on the structure and ferroelectric properties of Pb(Mg1/3Nb2/3)O3 (PMN) thin films derived from pulsed laser ablation (PLD), when perovskite PMN films on (La1/3Sr2/3)MnO3/LaAlO3 substrates were deposited ...
Study on Wavelength and Energy Effects on Pulsed Laser Ablation Synthesis of Aluminum Nanoparticles in Ethanol
ICMENS '09: Proceedings of the 2009 Fifth International Conference on MEMS NANO, and Smart SystemsAluminum nanoparticles were synthesized by pulsed laser ablation of Al sheet targets in ethanol for 10 minutes. Effect of laser wavelength was studied using 1064 and 533 nm wavelengths, and effect of its energy per pulse was surveyed applying energies ...
Comments