Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy
Additive manufacturing (AM) nickel-based superalloys have been demonstrated to equate or exceed mechanical properties of cast and wrought counterparts but their tribological potentials have not been fully realized. This study investigates fretting wear behaviors of Inconel 625 against the 42 CrMo<...
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MDPI AG
2018-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/8/12/2439 |
| _version_ | 1818582669784514560 |
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| author | Yong Gao Mingzhuo Zhou |
| author_facet | Yong Gao Mingzhuo Zhou |
| author_sort | Yong Gao |
| collection | DOAJ |
| description | Additive manufacturing (AM) nickel-based superalloys have been demonstrated to equate or exceed mechanical properties of cast and wrought counterparts but their tribological potentials have not been fully realized. This study investigates fretting wear behaviors of Inconel 625 against the 42 CrMo<sub>4</sub> stainless steel under flat-on-flat contacts. Inconel 625 is prepared by additive manufacturing (AM) using the electron beam selective melting. Results show that it has a high hardness (335 HV), superior tensile strength (952 MPa) and yield strength (793 MPa). Tribological tests indicate that the AM-Inconel 625 can suppress wear of the surface within a depth of only ~2.4 μm at a contact load of 106 N after 2 × 104 cycles. The excellent wear resistance is attributed to the improved strength and the formation of continuous tribo-layers containing a mixture of Fe<sub>2</sub>O<sub>3</sub>, Fe<sub>3</sub>O<sub>4</sub>, Cr<sub>2</sub>O<sub>3</sub> and Mn<sub>2</sub>O<sub>3</sub>. |
| first_indexed | 2024-12-16T07:53:04Z |
| format | Article |
| id | doaj.art-a34af3e950e54c0983f5889f01d59662 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-16T07:53:04Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-a34af3e950e54c0983f5889f01d596622022-12-21T22:38:49ZengMDPI AGApplied Sciences2076-34172018-12-01812243910.3390/app8122439app8122439Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 SuperalloyYong Gao0Mingzhuo Zhou1Wuhan Institute of Marine Electric Propulsion, Wuhan 430064, ChinaThe State Key Laboratory of Digital Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, ChinaAdditive manufacturing (AM) nickel-based superalloys have been demonstrated to equate or exceed mechanical properties of cast and wrought counterparts but their tribological potentials have not been fully realized. This study investigates fretting wear behaviors of Inconel 625 against the 42 CrMo<sub>4</sub> stainless steel under flat-on-flat contacts. Inconel 625 is prepared by additive manufacturing (AM) using the electron beam selective melting. Results show that it has a high hardness (335 HV), superior tensile strength (952 MPa) and yield strength (793 MPa). Tribological tests indicate that the AM-Inconel 625 can suppress wear of the surface within a depth of only ~2.4 μm at a contact load of 106 N after 2 × 104 cycles. The excellent wear resistance is attributed to the improved strength and the formation of continuous tribo-layers containing a mixture of Fe<sub>2</sub>O<sub>3</sub>, Fe<sub>3</sub>O<sub>4</sub>, Cr<sub>2</sub>O<sub>3</sub> and Mn<sub>2</sub>O<sub>3</sub>.https://www.mdpi.com/2076-3417/8/12/2439nickelfrettinghardnesswear mechanisms |
| spellingShingle | Yong Gao Mingzhuo Zhou Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy Applied Sciences nickel fretting hardness wear mechanisms |
| title | Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy |
| title_full | Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy |
| title_fullStr | Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy |
| title_full_unstemmed | Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy |
| title_short | Superior Mechanical Behavior and Fretting Wear Resistance of 3D-Printed Inconel 625 Superalloy |
| title_sort | superior mechanical behavior and fretting wear resistance of 3d printed inconel 625 superalloy |
| topic | nickel fretting hardness wear mechanisms |
| url | https://www.mdpi.com/2076-3417/8/12/2439 |
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