Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron
In this research, the optimal influence of adding Inconel 718 machining swarf on the wear characteristics of gray cast iron composites, utilizing varying proportions (1.5, 3, and 5 wt%) through the investment casting process, was investigated. The addition of a 1.5 wt% of swarf resulted in the refin...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001991 |
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| author | Mehdi Ranjbar Seyed Hossein Razavi Zahra-Sadat Seyedraoufi Yazdan Shajari |
| author_facet | Mehdi Ranjbar Seyed Hossein Razavi Zahra-Sadat Seyedraoufi Yazdan Shajari |
| author_sort | Mehdi Ranjbar |
| collection | DOAJ |
| description | In this research, the optimal influence of adding Inconel 718 machining swarf on the wear characteristics of gray cast iron composites, utilizing varying proportions (1.5, 3, and 5 wt%) through the investment casting process, was investigated. The addition of a 1.5 wt% of swarf resulted in the refinement of A-type graphite into finer forms, along with a small quantity of compacted graphite. Moreover, increasing the swarf amount to 3 and 5 wt% revealed the presence of Widmannstätten's graphite in the resulting composites. By incorporating 1.5 wt% of swarf, the pearlite matrix within the cast iron was refined to a finer pearlite. Nonetheless, in instances where swarf was present in higher concentrations near the transition interface, the formation of phosphide eutectic or steadite phases, along with carbides and, in some cases, martensite, was detected. The incorporation of 1.5 wt% of swarf resulted in an increase in the hardness of the sample from 180 HB to 202 HB. Furthermore, the composite samples containing 3 wt% and 5 wt% of swarf achieved hardness values of 211 HB and 250 HB, respectively. The presence of undissolved carbides alongside hard phases like martensite caused an increase in microhardness at the interface, which peaked at 740 HB. Despite the high hardness, the wear rate of the samples with 3 wt% and 5 wt% of swarf increased by 32% and 78% respectively compared to the cast iron sample, but in the sample with 1.5 wt% of swarf, a 34% decrease in the wear rate was observed. The optimal amount of added Machining swarfs was 1.5 wt% to improve wear properties. |
| format | Article |
| id | doaj-art-816414df381d418aab82dd2b696ce277 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-816414df381d418aab82dd2b696ce2772025-02-02T05:27:39ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013525582572Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast ironMehdi Ranjbar0Seyed Hossein Razavi1Zahra-Sadat Seyedraoufi2Yazdan Shajari3School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, IranSchool of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran; Corresponding author.Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, IranCeramics Department, Materials and Energy Research Center, Karaj, Alborz, IranIn this research, the optimal influence of adding Inconel 718 machining swarf on the wear characteristics of gray cast iron composites, utilizing varying proportions (1.5, 3, and 5 wt%) through the investment casting process, was investigated. The addition of a 1.5 wt% of swarf resulted in the refinement of A-type graphite into finer forms, along with a small quantity of compacted graphite. Moreover, increasing the swarf amount to 3 and 5 wt% revealed the presence of Widmannstätten's graphite in the resulting composites. By incorporating 1.5 wt% of swarf, the pearlite matrix within the cast iron was refined to a finer pearlite. Nonetheless, in instances where swarf was present in higher concentrations near the transition interface, the formation of phosphide eutectic or steadite phases, along with carbides and, in some cases, martensite, was detected. The incorporation of 1.5 wt% of swarf resulted in an increase in the hardness of the sample from 180 HB to 202 HB. Furthermore, the composite samples containing 3 wt% and 5 wt% of swarf achieved hardness values of 211 HB and 250 HB, respectively. The presence of undissolved carbides alongside hard phases like martensite caused an increase in microhardness at the interface, which peaked at 740 HB. Despite the high hardness, the wear rate of the samples with 3 wt% and 5 wt% of swarf increased by 32% and 78% respectively compared to the cast iron sample, but in the sample with 1.5 wt% of swarf, a 34% decrease in the wear rate was observed. The optimal amount of added Machining swarfs was 1.5 wt% to improve wear properties.http://www.sciencedirect.com/science/article/pii/S2238785425001991Gray cast ironSuperalloy swarfTribologyGraphite |
| spellingShingle | Mehdi Ranjbar Seyed Hossein Razavi Zahra-Sadat Seyedraoufi Yazdan Shajari Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron Journal of Materials Research and Technology Gray cast iron Superalloy swarf Tribology Graphite |
| title | Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron |
| title_full | Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron |
| title_fullStr | Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron |
| title_full_unstemmed | Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron |
| title_short | Investigating the effect of optimal addition of Inconel 718 machining swarfs on the wear behavior of gray cast iron |
| title_sort | investigating the effect of optimal addition of inconel 718 machining swarfs on the wear behavior of gray cast iron |
| topic | Gray cast iron Superalloy swarf Tribology Graphite |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001991 |
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