EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL
In this study, the pre-heat treatment applications (annealing, normalizing, oil quenching, tempering) influence is to be determined on the fatigue behavior of mechanically and thermally surface treated AISI 4140 low alloy steel. The plastically deformed, ultra fined and oriented grain layer has bee...
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| Format: | Article |
| Language: | English |
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Turkish Air Force Academy
2018-01-01
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| Series: | Havacılık ve Uzay Teknolojileri Dergisi |
| Subjects: | |
| Online Access: | http://www.jast.hho.edu.tr/JAST/index.php/JAST/article/view/279/258 |
| _version_ | 1797922271243796480 |
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| author | Okan Unal |
| author_facet | Okan Unal |
| author_sort | Okan Unal |
| collection | DOAJ |
| description | In this study, the pre-heat treatment applications (annealing, normalizing, oil quenching, tempering) influence is to be determined on the fatigue behavior of mechanically and thermally surface treated AISI 4140 low alloy steel. The plastically deformed, ultra fined and oriented grain layer has been created by means of severe shot peening and improved by pulsed plasma nitriding. The specimens were characterized by optical, scanning electron microscopy, X-ray diffraction and full width at half maximum (FWHM) analysis. The surface is investigated by surface roughness measurements before the understanding fatigue behavior of the specimens under different pre-heat treatments. The results demonstrate severe shot peening and plasma nitriding improves the fatigue limit of the material effectively. Also the combination of the treatments provides comparable fatigue limit of the annealed and normalized specimens compared to tempered one. |
| first_indexed | 2024-04-10T14:28:48Z |
| format | Article |
| id | doaj.art-badcf00a252549bfa3d1c395c093fe85 |
| institution | Directory Open Access Journal |
| issn | 1304-0448 1304-0448 |
| language | English |
| last_indexed | 2024-04-10T14:28:48Z |
| publishDate | 2018-01-01 |
| publisher | Turkish Air Force Academy |
| record_format | Article |
| series | Havacılık ve Uzay Teknolojileri Dergisi |
| spelling | doaj.art-badcf00a252549bfa3d1c395c093fe852023-02-15T16:08:57ZengTurkish Air Force AcademyHavacılık ve Uzay Teknolojileri Dergisi1304-04481304-04482018-01-011115763EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEELOkan Unal0Karabuk UniversityIn this study, the pre-heat treatment applications (annealing, normalizing, oil quenching, tempering) influence is to be determined on the fatigue behavior of mechanically and thermally surface treated AISI 4140 low alloy steel. The plastically deformed, ultra fined and oriented grain layer has been created by means of severe shot peening and improved by pulsed plasma nitriding. The specimens were characterized by optical, scanning electron microscopy, X-ray diffraction and full width at half maximum (FWHM) analysis. The surface is investigated by surface roughness measurements before the understanding fatigue behavior of the specimens under different pre-heat treatments. The results demonstrate severe shot peening and plasma nitriding improves the fatigue limit of the material effectively. Also the combination of the treatments provides comparable fatigue limit of the annealed and normalized specimens compared to tempered one.http://www.jast.hho.edu.tr/JAST/index.php/JAST/article/view/279/258Severe Shot PeeningPlasma NitridingFatigueFWHMUltrafine Grain Layer |
| spellingShingle | Okan Unal EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL Havacılık ve Uzay Teknolojileri Dergisi Severe Shot Peening Plasma Nitriding Fatigue FWHM Ultrafine Grain Layer |
| title | EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL |
| title_full | EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL |
| title_fullStr | EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL |
| title_full_unstemmed | EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL |
| title_short | EFFECT OF PRE-HEAT TREATMENT ON FATIGUE BEHAVIOR OF SEVERE SHOT PEENED AND PLASMA NITRIDED AISI 4140 STEEL |
| title_sort | effect of pre heat treatment on fatigue behavior of severe shot peened and plasma nitrided aisi 4140 steel |
| topic | Severe Shot Peening Plasma Nitriding Fatigue FWHM Ultrafine Grain Layer |
| url | http://www.jast.hho.edu.tr/JAST/index.php/JAST/article/view/279/258 |
| work_keys_str_mv | AT okanunal effectofpreheattreatmentonfatiguebehaviorofsevereshotpeenedandplasmanitridedaisi4140steel |