Tribological properties of plasma nitrided inconel 718
Inconel 718 was plasma nitrided using the various controlling parameters such as treatment temperature, treatment time and N2/H2 gas composition. It was found that the case growth rate is proportional to the square root of treatment time. Maximum microhardness of 1290HK which was 3 times harder than...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2009
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| Online Access: | http://hdl.handle.net/10356/19988 |
| _version_ | 1811689437983145984 |
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| author | Aw, Poh Koon |
| author2 | Loh, Nee Lam |
| author_facet | Loh, Nee Lam Aw, Poh Koon |
| author_sort | Aw, Poh Koon |
| collection | NTU |
| description | Inconel 718 was plasma nitrided using the various controlling parameters such as treatment temperature, treatment time and N2/H2 gas composition. It was found that the case growth rate is proportional to the square root of treatment time. Maximum microhardness of 1290HK which was 3 times harder than the bulk metal was obtained with 600°C and N2/H2=1/1 after 9 hours of treatment. An uniform case depth of up to 10.5µm was obtained with 600°C and N2/H2=9/1 after 9 hours of treatment. A columnar structure caused by prolonged treatment under ionic bombardment was observed on the nitrided surface. |
| first_indexed | 2024-10-01T05:48:06Z |
| format | Thesis |
| id | ntu-10356/19988 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:48:06Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/199882023-03-11T17:24:10Z Tribological properties of plasma nitrided inconel 718 Aw, Poh Koon Loh, Nee Lam School of Mechanical and Production Engineering DRNTU::Engineering::Materials::Metallic materials::Alloys Inconel 718 was plasma nitrided using the various controlling parameters such as treatment temperature, treatment time and N2/H2 gas composition. It was found that the case growth rate is proportional to the square root of treatment time. Maximum microhardness of 1290HK which was 3 times harder than the bulk metal was obtained with 600°C and N2/H2=1/1 after 9 hours of treatment. An uniform case depth of up to 10.5µm was obtained with 600°C and N2/H2=9/1 after 9 hours of treatment. A columnar structure caused by prolonged treatment under ionic bombardment was observed on the nitrided surface. Master of Engineering (MPE) 2009-12-14T07:54:45Z 2009-12-14T07:54:45Z 1996 1996 Thesis http://hdl.handle.net/10356/19988 en Nanyang Technological University 174 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Metallic materials::Alloys Aw, Poh Koon Tribological properties of plasma nitrided inconel 718 |
| title | Tribological properties of plasma nitrided inconel 718 |
| title_full | Tribological properties of plasma nitrided inconel 718 |
| title_fullStr | Tribological properties of plasma nitrided inconel 718 |
| title_full_unstemmed | Tribological properties of plasma nitrided inconel 718 |
| title_short | Tribological properties of plasma nitrided inconel 718 |
| title_sort | tribological properties of plasma nitrided inconel 718 |
| topic | DRNTU::Engineering::Materials::Metallic materials::Alloys |
| url | http://hdl.handle.net/10356/19988 |
| work_keys_str_mv | AT awpohkoon tribologicalpropertiesofplasmanitridedinconel718 |