scholarly journals Repair of Turbine Blades Using Cold Spray Technique

10.5772/23623 ◽  
2011 ◽  
Author(s):  
Kazuhiro Ogawa ◽  
Dowon Seo
Keyword(s):  
Cold Spray ◽  
Turbine Blades ◽  
Spray Technique

Microstructure, microhardness and tribological behavior of Al2O3 reinforced A380 aluminum alloy composite coatings prepared by cold spray technique

2018 ◽  
Vol 350 ◽  
pp. 391-400 ◽  
Author(s):  
Xiang Qiu ◽  
Naeem ul Haq Tariq ◽  
Ji-qiang Wang ◽  
Jun-rong Tang ◽  
Lawrence Gyansah ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Cold Spray ◽  
Tribological Behavior ◽  
Composite Coatings ◽  
Alloy Composite ◽  
Spray Technique

Response of Cold Sprayed Ti6Al4V Coatings to Solid Particle Erosion and Micro-Scratch Wear Processes

2018 ◽  
Vol 941 ◽  
pp. 1680-1685 ◽  
Author(s):  
Miguel Ángel Garrido ◽  
Paloma Sirvent ◽  
Daniel Elvira ◽  
Álvaro Rico ◽  
Claudio J. Múnez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Residual Stresses ◽  
Solid Particle ◽  
Cold Spray ◽  
Mechanical Response ◽  
Operating Time ◽  
Wear Behaviour ◽  
Solid Particle Erosion ◽  
Particle Erosion ◽  
Spray Technique

Ti6Al4V alloy is widely used for aeronautical components due to a special combination of high mechanical properties, low density and good corrosion resistance at high temperature. These components are usually damaged by particles impacts during their operating time. When the reliability of these components is compromised, they are replaced with the consequent cost of material and time. Spraying coatings on the damaged surface could reveal as an alternative process to repair these components, increasing their operating life. Traditionally, thermal spray processes are used to repair the aeronautical components. However, the coatings produced by these processes are characterized by high residual stresses, porosity and oxidation. The cold spray technique is revealed as a promising spraying alternative due to the characteristic low temperature of the process. Consequently, residual stresses, oxidation, crack formation, phase transformations and microstructural changes are minimized. In this work, a cold spray technique was used to generate Ti6Al4V coatings onto a bulk of the same material. Three different spraying conditions were studied: Ti6Al4V coatings sprayed at 800oC; Ti6Al4V coatings sprayed at 1100oC; and Ti6Al4V coatings sprayed at 1100oC with a subsequent heat treatment: The wear resistance of these coatings was investigated by solid particle erosion and micro-scratch tests. The wear behaviour was determined under several wear tests conditions. Additionally, instrumented indentation tests were carried out on the coatings to determine their mechanical response. The wear mechanisms of the coatings were identified and compared to their microstructure and mechanical properties.

A comparison of cold spray technique to single particle micro-ballistic impacts for the deposition of polymer particles on polymer substrates

2018 ◽  
Vol 351 ◽  
pp. 99-107 ◽  
Author(s):  
Zahra Khalkhali ◽  
Wanting Xie ◽  
Victor K. Champagne ◽  
Jae-Hwang Lee ◽  
Jonathan P. Rothstein
Keyword(s):  
Cold Spray ◽  
Single Particle ◽  
Polymer Particles ◽  
Polymer Substrates ◽  
Ballistic Impacts ◽  
Spray Technique

Enhanced reactivity of mechanically-activated nano-scale gasless reactive materials consolidated via the cold-spray technique

2012 ◽  
Author(s):  
Antoine Bacciochini ◽  
Matei I. Radulescu ◽  
Yannick Charron-Tousignant ◽  
Jason Van Dyke ◽  
Bertrand Jodoin ◽  
...  
Keyword(s):  
Cold Spray ◽  
Nano Scale ◽  
Reactive Materials ◽  
Spray Technique

scholarly journals Enhanced flow boiling heat transfer on chromium coated zircaloy-4 using cold spray technique for accident tolerant fuel (ATF) materials

2021 ◽  
Vol 185 ◽  
pp. 116347
Author(s):  
Donghwi Lee ◽  
Barret Elward ◽  
Paul Brooks ◽  
Rajnikant Umretiya ◽  
Jessika Rojas ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Cold Spray ◽  
Boiling Heat Transfer ◽  
Flow Boiling ◽  
Flow Boiling Heat Transfer ◽  
Spray Technique
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