Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties
Quasicrystals have been used in various applications to improve wear resistance as well as friction. It is known that quasicrystal (i-phase) content and microstructure in alloys have a decisive effect on the mechanical properties and tribological performance. In this research, four (β + i)-dual-phas...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-08-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520302690 |
| _version_ | 1818277027710500864 |
|---|---|
| author | Kyungjun Lee Yan Chen Wei Dai Donald Naugle Hong Liang |
| author_facet | Kyungjun Lee Yan Chen Wei Dai Donald Naugle Hong Liang |
| author_sort | Kyungjun Lee |
| collection | DOAJ |
| description | Quasicrystals have been used in various applications to improve wear resistance as well as friction. It is known that quasicrystal (i-phase) content and microstructure in alloys have a decisive effect on the mechanical properties and tribological performance. In this research, four (β + i)-dual-phased quasicrystal alloys with different i-phase content and grain size were developed to alleviate the brittleness of the i-phase with the help of the soft β-phase. The influences of the i-phase content and grain size were investigated through impact test, wear test, and analysis. Through the annealing process, the amount of the i-phase was increased by about 38% (59.24% → 81.75%), and, besides, the grain size of the i-phase was simultaneously increased from 3.47 μm up to 9.98 μm. As the amount of i-phase increased, it was possible to increase the hardness from 712 HV to 763 HV. Meanwhile, the increased grain size (i-phase) reduced the contact stress of the grain during wear testing; thus, the specific wear rate could be decreased from 2.21 × 10−4 mm3/Nm to 0.5 × 10−4 mm3/Nm. Not only that, but an experimental wear equation was obtained using empirical data to predict the wear behavior of the dual-phased alloys. |
| first_indexed | 2024-12-12T22:55:01Z |
| format | Article |
| id | doaj.art-c96006e82aa2466ab38514ecbb1353a8 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-12T22:55:01Z |
| publishDate | 2020-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-c96006e82aa2466ab38514ecbb1353a82022-12-22T00:08:58ZengElsevierMaterials & Design0264-12752020-08-01193108735Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical propertiesKyungjun Lee0Yan Chen1Wei Dai2Donald Naugle3Hong Liang4J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, United StatesDepartment of Physics & Astronomy, Texas A&M University, College Station, TX 77843, United StatesJ. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, United StatesDepartment of Physics & Astronomy, Texas A&M University, College Station, TX 77843, United States; Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, United StatesDepartment of Physics & Astronomy, Texas A&M University, College Station, TX 77843, United States; Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, United States; Corresponding author.Quasicrystals have been used in various applications to improve wear resistance as well as friction. It is known that quasicrystal (i-phase) content and microstructure in alloys have a decisive effect on the mechanical properties and tribological performance. In this research, four (β + i)-dual-phased quasicrystal alloys with different i-phase content and grain size were developed to alleviate the brittleness of the i-phase with the help of the soft β-phase. The influences of the i-phase content and grain size were investigated through impact test, wear test, and analysis. Through the annealing process, the amount of the i-phase was increased by about 38% (59.24% → 81.75%), and, besides, the grain size of the i-phase was simultaneously increased from 3.47 μm up to 9.98 μm. As the amount of i-phase increased, it was possible to increase the hardness from 712 HV to 763 HV. Meanwhile, the increased grain size (i-phase) reduced the contact stress of the grain during wear testing; thus, the specific wear rate could be decreased from 2.21 × 10−4 mm3/Nm to 0.5 × 10−4 mm3/Nm. Not only that, but an experimental wear equation was obtained using empirical data to predict the wear behavior of the dual-phased alloys.http://www.sciencedirect.com/science/article/pii/S0264127520302690Quasicrystal alloyMicrostructure, hardnessImpact testFracture toughnessWear |
| spellingShingle | Kyungjun Lee Yan Chen Wei Dai Donald Naugle Hong Liang Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties Materials & Design Quasicrystal alloy Microstructure, hardness Impact test Fracture toughness Wear |
| title | Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| title_full | Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| title_fullStr | Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| title_full_unstemmed | Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| title_short | Design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| title_sort | design of quasicrystal alloys with favorable tribological performance in view of microstructure and mechanical properties |
| topic | Quasicrystal alloy Microstructure, hardness Impact test Fracture toughness Wear |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520302690 |
| work_keys_str_mv | AT kyungjunlee designofquasicrystalalloyswithfavorabletribologicalperformanceinviewofmicrostructureandmechanicalproperties AT yanchen designofquasicrystalalloyswithfavorabletribologicalperformanceinviewofmicrostructureandmechanicalproperties AT weidai designofquasicrystalalloyswithfavorabletribologicalperformanceinviewofmicrostructureandmechanicalproperties AT donaldnaugle designofquasicrystalalloyswithfavorabletribologicalperformanceinviewofmicrostructureandmechanicalproperties AT hongliang designofquasicrystalalloyswithfavorabletribologicalperformanceinviewofmicrostructureandmechanicalproperties |