Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels
The present work describes an experimental investigation of the fatigue durability of AISI 304 and AISI 316L austenitic stainless steels, which have regular reliefs (RR) of the IV-th type, formed by ball burnishing (BB) on flat surfaces, using a computer numerical control (CNC) milling center. The m...
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MDPI AG
2021-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/10/2529 |
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| author | Stoyan Slavov Diyan Dimitrov Mariya Konsulova-Bakalova Dimka Vasileva |
| author_facet | Stoyan Slavov Diyan Dimitrov Mariya Konsulova-Bakalova Dimka Vasileva |
| author_sort | Stoyan Slavov |
| collection | DOAJ |
| description | The present work describes an experimental investigation of the fatigue durability of AISI 304 and AISI 316L austenitic stainless steels, which have regular reliefs (RR) of the IV-th type, formed by ball burnishing (BB) on flat surfaces, using a computer numerical control (CNC) milling center. The methodology and the equipment used for obtaining regular reliefs, along with a vibration-induced fatigue test setup, are presented and described. The results from the BB process and the fatigue life experiments of the tested austenitic stainless steels are gathered, using the approach of factorial design experiments. It was found that the presence of RR of the IV-th type do not worsen the fatigue strength of the studied steels. The Pareto, <i>t</i>-test and Bayesian rule techniques are used to determine the main effects and the interactions of significance between ball burnishing regime parameters. A stochastic model is derived and is used to find when the probability of obtaining the maximum fatigue life of parts made of AISI 304 or 316L reaches its maximum value. It was found that when the deforming force, the amplitude of the sinewaves and their wavenumber are set at high values, and the feed rate is set at its low value, the probability to reach maximum fatigue life for the parts made of AISI 304 or 316L is equal to 97%. |
| first_indexed | 2024-03-10T11:27:26Z |
| format | Article |
| id | doaj.art-0ce131b2dd8345b19ac0d6b325197bd6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T11:27:26Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-0ce131b2dd8345b19ac0d6b325197bd62023-11-21T19:29:51ZengMDPI AGMaterials1996-19442021-05-011410252910.3390/ma14102529Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless SteelsStoyan Slavov0Diyan Dimitrov1Mariya Konsulova-Bakalova2Dimka Vasileva3Department of Mechanical Engineering and Machine Tools, Technical University of Varna, 9010 Varna, BulgariaDepartment of Mechanics and Machine Elements, Technical University of Varna, 9010 Varna, BulgariaDepartment of Mechanical Engineering and Machine Tools, Technical University of Varna, 9010 Varna, BulgariaDepartment of Mechanical Engineering and Machine Tools, Technical University of Varna, 9010 Varna, BulgariaThe present work describes an experimental investigation of the fatigue durability of AISI 304 and AISI 316L austenitic stainless steels, which have regular reliefs (RR) of the IV-th type, formed by ball burnishing (BB) on flat surfaces, using a computer numerical control (CNC) milling center. The methodology and the equipment used for obtaining regular reliefs, along with a vibration-induced fatigue test setup, are presented and described. The results from the BB process and the fatigue life experiments of the tested austenitic stainless steels are gathered, using the approach of factorial design experiments. It was found that the presence of RR of the IV-th type do not worsen the fatigue strength of the studied steels. The Pareto, <i>t</i>-test and Bayesian rule techniques are used to determine the main effects and the interactions of significance between ball burnishing regime parameters. A stochastic model is derived and is used to find when the probability of obtaining the maximum fatigue life of parts made of AISI 304 or 316L reaches its maximum value. It was found that when the deforming force, the amplitude of the sinewaves and their wavenumber are set at high values, and the feed rate is set at its low value, the probability to reach maximum fatigue life for the parts made of AISI 304 or 316L is equal to 97%.https://www.mdpi.com/1996-1944/14/10/2529ball burnishingregular reliefssurface topographyaustenitic stainless steelfatigue life<i>t</i>-test |
| spellingShingle | Stoyan Slavov Diyan Dimitrov Mariya Konsulova-Bakalova Dimka Vasileva Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels Materials ball burnishing regular reliefs surface topography austenitic stainless steel fatigue life <i>t</i>-test |
| title | Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels |
| title_full | Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels |
| title_fullStr | Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels |
| title_full_unstemmed | Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels |
| title_short | Impact of Ball Burnished Regular Reliefs on Fatigue Life of AISI 304 and 316L Austenitic Stainless Steels |
| title_sort | impact of ball burnished regular reliefs on fatigue life of aisi 304 and 316l austenitic stainless steels |
| topic | ball burnishing regular reliefs surface topography austenitic stainless steel fatigue life <i>t</i>-test |
| url | https://www.mdpi.com/1996-1944/14/10/2529 |
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