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Bu çalışmada, AISI 1020 çelik ve Ti-6Al-4V titanyum alaşım malzemelerinin katı partikül (parçacık) erozyon davranışları deneysel ve sayısal olarak incelenmiştir. Deneyler ve sayısal simülasyonlar, farklı partikül çarpma hızları (100, 127, 170, 210, 250 m/s) ve açıları (20, 30, 45, 60, 90°) için gerçekleştirilmiştir. Bununla birlikte, aynı malzemelerin bir helikopter pali aşınma kalkanındaki erozyon performansları, 0° hücum açısı ve 230 m/s çarpma hızı şartlarında MIL-STD-3033 standartına göre yapılmışken sayısal erozyon analizleri Eulerian-Lagrangian yaklaşımlı ayrık faz metodu ve ampirik erozyon eşitliği kullanan ticari ANSYS_Fluent 15.0 paket programı ile gerçekleştirilmiştir. Çalışmadan elde edilen sonuçlara göre, sayısal sonuçlar deneysel veriyle iyi derecede uyumlu ve AISI 1020 çeliğinin kalkan yüzeyindeki erozyon performansı Ti-6Al-4V alaşım malzemesinden daha iyi elde edilmiştir.
In this study, the AISI 1020 steel and Ti-6Al-4V titanium alloy materials have been experimentally and numerically studied for solid particle (particle) erosion behavior. Experiments and numerical simulations were carried out for different particle collision speeds (100, 127, 170, 210, 250 m/s) and angles (20, 30, 45, 60, 90°). However, the erosion performance of the same materials in a helicopter steam steam was performed according to the MIL-STD-3033 standard in the conditions of 0° attack angle and 230 m/s collision speed, while numerical erosion analysis was performed with the commercial ANSYS_Fluent 15.0 package program using the Eulerian-Lagrangian approach of the separate phase method and the empirical erosion equality. According to the results obtained from the study, the numerical results were well-compatible with the experimental data and the erosion performance on the slurry surface of the AISI 1020 steel was better achieved than the Ti-6Al-4V alloy material.
In this paper, solid particle erosion behaviors of AISI 1020 steel and Ti-6Al-4V titanium alloy materials were experimentally and numerically investigated. Experiments and numerical simulations were carried out for the conditions of different particle impact velocities (100, 127, 170, 210, 250 m/s) and angles (20, 30, 45, 60, 90°). Moreover, erosion performances on the erosion shield of a helicopter rotor blade of aforementioned materials were numerically determined for the condition of angle of attack of 0⁰ and impact velocity of 230 m/s. Numerical erosion analyzes were performed with ANSYS_Fluent 15.0 package program using discrete phase method with Eulerian-Lagrangian approach and an empirical erosion equation while experimental erosion tests were conducted by MIL-STD-3033 standard. As a result, numerical results were in good agreement with the experimental data, and it was obtained that erosion performance on the shield surface of AISI 1020 steel material is better than Ti-6Al-4V titanium alloy material.
Field : Mühendislik
Journal Type : Ulusal
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