Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings
Low-pressure cold-spray (LPCS) aluminum is widely used for coating depositions in various engineering applications but is limited by its low hardness and poor wear resistance. To improve these properties, ceramic particles are added to form metallic matrix composites (MMCs). High-pressure processes...
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2025-01-01
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| author | Pudsadee Chupong Mahathep Sukpat Karuna Tuchinda |
| author_facet | Pudsadee Chupong Mahathep Sukpat Karuna Tuchinda |
| author_sort | Pudsadee Chupong |
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| description | Low-pressure cold-spray (LPCS) aluminum is widely used for coating depositions in various engineering applications but is limited by its low hardness and poor wear resistance. To improve these properties, ceramic particles are added to form metallic matrix composites (MMCs). High-pressure processes can achieve effective MMC coatings but are costly and energy intensive. LPCS has been studied to develop an Al-based MMC at a lower cost. To ensure the adaptation of developed LPCS coating in engineering applications, the behavior of the coating under certain loads needs to be established. This study investigates the sliding wear behavior, friction characteristics, hardness, and microstructure of Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN composite coatings deposited using LPCS at 1 MPa and 450 °C. The effect of adding 25 wt% TiN to the Al-Al<sub>2</sub>O<sub>3</sub> composite was explored. Although the addition of TiN did not significantly enhance the hardness of the coating, SEM analysis revealed notable differences in wear behavior between the two coatings. The Al-Al<sub>2</sub>O<sub>3</sub>/TiN composite exhibited better wear resistance, which was attributed to the reduced formation of powdery wear debris and improved crack suppression. These findings highlight the potential of TiN reinforcement to enhance the tribological performance of LPCS aluminum-based coatings, offering a promising solution for improving wear resistance in engineering applications. |
| format | Article |
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| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| spelling | doaj-art-0d53727f8a80442a80d752d0c9f7857f2025-01-24T13:41:31ZengMDPI AGMetals2075-47012025-01-011515110.3390/met15010051Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite CoatingsPudsadee Chupong0Mahathep Sukpat1Karuna Tuchinda2Mechanical Engineering Simulation and Design Mechanical and Automotive Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandDepartment of Teacher Training in Mechanical Engineering, Faculty of Technical Education, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandMechanical Engineering Simulation and Design Mechanical and Automotive Engineering, The Sirindhorn International Thai-German Graduate School of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandLow-pressure cold-spray (LPCS) aluminum is widely used for coating depositions in various engineering applications but is limited by its low hardness and poor wear resistance. To improve these properties, ceramic particles are added to form metallic matrix composites (MMCs). High-pressure processes can achieve effective MMC coatings but are costly and energy intensive. LPCS has been studied to develop an Al-based MMC at a lower cost. To ensure the adaptation of developed LPCS coating in engineering applications, the behavior of the coating under certain loads needs to be established. This study investigates the sliding wear behavior, friction characteristics, hardness, and microstructure of Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN composite coatings deposited using LPCS at 1 MPa and 450 °C. The effect of adding 25 wt% TiN to the Al-Al<sub>2</sub>O<sub>3</sub> composite was explored. Although the addition of TiN did not significantly enhance the hardness of the coating, SEM analysis revealed notable differences in wear behavior between the two coatings. The Al-Al<sub>2</sub>O<sub>3</sub>/TiN composite exhibited better wear resistance, which was attributed to the reduced formation of powdery wear debris and improved crack suppression. These findings highlight the potential of TiN reinforcement to enhance the tribological performance of LPCS aluminum-based coatings, offering a promising solution for improving wear resistance in engineering applications.https://www.mdpi.com/2075-4701/15/1/51low-pressure cold spraycomposite coatingAl-Al<sub>2</sub>O<sub>3</sub>/TiNAl-Al<sub>2</sub>O<sub>3</sub>wear |
| spellingShingle | Pudsadee Chupong Mahathep Sukpat Karuna Tuchinda Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings Metals low-pressure cold spray composite coating Al-Al<sub>2</sub>O<sub>3</sub>/TiN Al-Al<sub>2</sub>O<sub>3</sub> wear |
| title | Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings |
| title_full | Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings |
| title_fullStr | Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings |
| title_full_unstemmed | Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings |
| title_short | Characterization and Sliding Wear Behavior of Low-Pressure Cold-Spray Al-Al<sub>2</sub>O<sub>3</sub> and Al-Al<sub>2</sub>O<sub>3</sub>/TiN Composite Coatings |
| title_sort | characterization and sliding wear behavior of low pressure cold spray al al sub 2 sub o sub 3 sub and al al sub 2 sub o sub 3 sub tin composite coatings |
| topic | low-pressure cold spray composite coating Al-Al<sub>2</sub>O<sub>3</sub>/TiN Al-Al<sub>2</sub>O<sub>3</sub> wear |
| url | https://www.mdpi.com/2075-4701/15/1/51 |
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