IJBTT

Effect of Standoff Distance During Waterjet Peening Interaction with Titanium Alloy

	International Journal of Engineering Trends and Technology (IJETT)
	© 2019 by IJETT Journal
	Volume-67 Issue-12
	Year of Publication : 2019
	Authors : Sujita Darmo, Nur Kaliwantoro
	DOI :  10.14445/22315381/IJETT-V67I12P206

Citation 

MLA Style: Sujita Darmo, Nur Kaliwantoro  "Effect of Standoff Distance During Waterjet Peening Interaction with Titanium Alloy" International Journal of Engineering Trends and Technology 67.12 (2019):37-40.

APA Style:Sujita Darmo, Nur Kaliwantoro. Effect of Standoff Distance During Waterjet Peening Interaction with Titanium Alloy  International Journal of Engineering Trends and Technology, 67(12),37-40.

Abstract
In the present research a detailed effect of standoff distance water jet peening with the variation of jet presurre on the flat titanium alloy surface has been studied. During the experimentation, at a traverse speed of 30 mm/s accidently the change in standoff distance was encountered in the repeated test. Same treatment condition) which has been reported in this work. The frequency was f = 20 kHz at the pressure of p = 70 MPa with variation in standoff distance was increased from 20 mm up to 100 mm (with step distance of 20 mm ) during the treatment process. The change in microstructural was observed using scanning electron microscopy (SEM). The strengthening mechanism on the surface and subsurface region due to the plastic deformation phenomenon caused by the impact of the waterjet peening was evaluated by Vickers micro hardness test. The micro hardness test was conducted along the depth of the treated region to analyze the effects in the sub-surface layers by scanning the surface by optical Micro Prof FRT profile meter in order to analyze the erosion phenomenon with the variation of standoff distance and jet pressure during the treatment process. The results obtained indicates that the variation in standoff distance has a significant impact on the surface hardness number of the titanium alloy. The above observations elaborated the effect of standoff distance were better and effective of the applied technology for the surface treatment of titanium alloy

Reference

[1] Bombac D., Brojan, M., Krkovic, M., Turk, R., Zalar, A., Characterization of Titanium and Stainless Steel Medical Implants Surfaces, . Materials and Geoenvironment Vol. 54, 151-164, 2001.
[2] Dadkhahipour, Keivan & Wang, Jun, A Study of Material Removal Process in Abrasive Waterjet Milling. Advanced Materials Research. 325. 621-626. 10.4028/www.scientific.net/AMR.325.62, 2011.
[3] D. Arola and C. L. Hall, P arametric Effects on Particle Deposition in AbrasiveWaterjet Surface Treatments, Machining Science And Technology, Vol. 8, No. 2, pp. 171–192, 2004
[4] Hitoshi Soyama, Mitsuhiro Mikami, 2004, “Effect of Nozzle Geometry on Unsteady Behavior of a Cavitating Jet in Air” Journal of Engineering Materials and Technology, Trans. ASME, Vol. 126, No. 1, pp. 123-128
[5] Hitoshi Soyama, , High-Speed Observation of a Cavitating Jet in Air , Trans. Journal of Fluids Engineering, Vol. 127, No. 4, , pp. 1095-1101, 2005.
[6] Hitoshi. SoyamaSurface mechanics design by cavitation peening. The Journal of Engineering. 10.1049/joe.2015.0055.,2015.
[7] Kritzler, J. Effect of Shot Peening on Stress Corrosion Cracking on Alpha Titanium Alloy, International Conference of Shot Peening 7th, Marsaw, Poland, pp.199- 208, , 2009.
[8] Kantha Babu, M. & Krishnaiah Chetty, O. A study on the use of single mesh size abrasives in abrasive waterjet machining International Journal Advanced Manufacturing Technology , 29: 532. https://doi.org/10.1007/s00170- 005-2536-x, 2006.
[9] K.K. Alaneme, Influence Of Thermo-Mechanical Treatment On The Tensile Behaviour And Cnt Evaluated Fracture Toughness Of Borax Premixed Sicp Reinforced Aa 6063 Composites, International Journal of Mechanical and Materials Engineering (IJMME), Vol. 7, No. 1, 96–100, 2012.
[10] J. Zhang, Faming & Burkel, Eberhard., Novel Titanium Manganese Alloys and Their Macroporous Foams for Biomedical Applications Prepared by Field Assisted Sintering. 10.5772/12874. DOI: 10.5772/12874, 2011.
[11] Yasuhiro Morizono, Yuka Kawano1, Sadahiro Tsurekawa1 and Takateru Yamamuro, Surface Hardening of Titanium by Using a Simplified Carbon and Nitrogen Diffusion Technique with Steel and Carbon Powders, Materials Transactions, Vol. 54, No. 8, pp. 1454 to 1459, 2013.

Keywords
Waterjet peening, titanium alloy. frequency, standoff distance, surface hardness number.