Characteristics of Impulse Carburization LPC Process
In the present work, Pyrowear53 steel was subjected to the impulse carburizing LPC process. After carburation, the material was quenched and tempered. Postprocessing analyses included the measurement of hardness, carbon content, residual austenite, and residual stresses. The results revealed that th...
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MDPI AG
2021-07-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/15/4269 |
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| author | Ryszard Filip Kamil Ochał Kamil Gancarczyk Wojciech Jerzy Nowak Barbara Kościelniak Bartek Wierzba |
| author_facet | Ryszard Filip Kamil Ochał Kamil Gancarczyk Wojciech Jerzy Nowak Barbara Kościelniak Bartek Wierzba |
| author_sort | Ryszard Filip |
| collection | DOAJ |
| description | In the present work, Pyrowear53 steel was subjected to the impulse carburizing LPC process. After carburation, the material was quenched and tempered. Postprocessing analyses included the measurement of hardness, carbon content, residual austenite, and residual stresses. The results revealed that the thermochemical treatment resulted in the formation of an approximately 1200 µm wide carburized layer. The results of hardness, carbon content, and residual austenite measurement showed a continuous gradient (drop) in the measured values within the carburized layer. However, the results of residual stresses revealed the existence of a local extremum, namely, a zone with higher compressive stresses at the depth between 600 and 1000 µm. This was explained by a different temperature for initiation of martensite transformation as a function of carbon content. This difference resulted in the occurrence of two martensite expansion fronts at two different depths, resulting in an increase in compressive stresses at the noted depth range. Moreover, it was concluded that this region was present for material containing between 0.8 and 0.4 wt% carbon for Pyrowear53. |
| first_indexed | 2024-03-10T09:12:36Z |
| format | Article |
| id | doaj.art-f4047eaa9bb244e5b09adeb9b8d8623c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:12:36Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-f4047eaa9bb244e5b09adeb9b8d8623c2023-11-22T05:54:16ZengMDPI AGMaterials1996-19442021-07-011415426910.3390/ma14154269Characteristics of Impulse Carburization LPC ProcessRyszard Filip0Kamil Ochał1Kamil Gancarczyk2Wojciech Jerzy Nowak3Barbara Kościelniak4Bartek Wierzba5Department of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandDepartment of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandDepartment of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandDepartment of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandDepartment of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandDepartment of Materials Science, Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 12, 35-959 Rzeszow, PolandIn the present work, Pyrowear53 steel was subjected to the impulse carburizing LPC process. After carburation, the material was quenched and tempered. Postprocessing analyses included the measurement of hardness, carbon content, residual austenite, and residual stresses. The results revealed that the thermochemical treatment resulted in the formation of an approximately 1200 µm wide carburized layer. The results of hardness, carbon content, and residual austenite measurement showed a continuous gradient (drop) in the measured values within the carburized layer. However, the results of residual stresses revealed the existence of a local extremum, namely, a zone with higher compressive stresses at the depth between 600 and 1000 µm. This was explained by a different temperature for initiation of martensite transformation as a function of carbon content. This difference resulted in the occurrence of two martensite expansion fronts at two different depths, resulting in an increase in compressive stresses at the noted depth range. Moreover, it was concluded that this region was present for material containing between 0.8 and 0.4 wt% carbon for Pyrowear53.https://www.mdpi.com/1996-1944/14/15/4269low-pressure carburizingPyrowear53hardnessresidual stressescarbon concentration |
| spellingShingle | Ryszard Filip Kamil Ochał Kamil Gancarczyk Wojciech Jerzy Nowak Barbara Kościelniak Bartek Wierzba Characteristics of Impulse Carburization LPC Process Materials low-pressure carburizing Pyrowear53 hardness residual stresses carbon concentration |
| title | Characteristics of Impulse Carburization LPC Process |
| title_full | Characteristics of Impulse Carburization LPC Process |
| title_fullStr | Characteristics of Impulse Carburization LPC Process |
| title_full_unstemmed | Characteristics of Impulse Carburization LPC Process |
| title_short | Characteristics of Impulse Carburization LPC Process |
| title_sort | characteristics of impulse carburization lpc process |
| topic | low-pressure carburizing Pyrowear53 hardness residual stresses carbon concentration |
| url | https://www.mdpi.com/1996-1944/14/15/4269 |
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