Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications
The research article address, the mechanical properties such as fatigue, impact strength and tribological properties of Austempered ductile iron (ADI) has been investigated. The samples of ADI iron were austenitized at 927°C for 2 hrs and later it was under austempering process for 2 hrs at a temper...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2020-03-01
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| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/114499/PDF/AMM-2020-1-02-Ramkumar.pdf |
| _version_ | 1811314030409678848 |
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| author | T. Ramkumar S. Madhusudhanan I. Rajendran |
| author_facet | T. Ramkumar S. Madhusudhanan I. Rajendran |
| author_sort | T. Ramkumar |
| collection | DOAJ |
| description | The research article address, the mechanical properties such as fatigue, impact strength and tribological properties of Austempered ductile iron (ADI) has been investigated. The samples of ADI iron were austenitized at 927°C for 2 hrs and later it was under austempering process for 2 hrs at a temperature range of 240°C to 400°C. Experiments under axial loading has been carried out on three different compositions (without Ni(X), 0.22 wt % Ni (X1), 0.34 wt. % Ni (X2). Fabricated test bars were converted in to as per ASTM standard samples for different tests. In order to study the influence of chunky nickel morphology studies on fatigue life and impact strength were carried out on a second set of specimens without any microstructural defect. Metallurgical analyses were performed on all the samples of heat treated samples (AF – Ausferrite, MB – Mixed bainite, M – Martensite, RA – Retained Austenite and N-Nodule) were found and compared. It was found that a mean content of 22% of chunky nickel in the microstructure (with respect to total Ni content) influence considerably the fatigue and impact strength properties of the cast iron. Moreover tribological properties of the specimens were also studied under dry sliding conditions at various sliding speed and load. The wear resistance and coefficient of friction were found to increase with increase in load and sliding speed. |
| first_indexed | 2024-04-13T11:04:48Z |
| format | Article |
| id | doaj.art-b5e9955764c9461ba407fba5b88b4a9c |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-04-13T11:04:48Z |
| publishDate | 2020-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-b5e9955764c9461ba407fba5b88b4a9c2022-12-22T02:49:18ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092020-03-01vol. 65No 11525https://doi.org/10.24425/amm.2019.131092Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle ApplicationsT. RamkumarS. MadhusudhananI. RajendranThe research article address, the mechanical properties such as fatigue, impact strength and tribological properties of Austempered ductile iron (ADI) has been investigated. The samples of ADI iron were austenitized at 927°C for 2 hrs and later it was under austempering process for 2 hrs at a temperature range of 240°C to 400°C. Experiments under axial loading has been carried out on three different compositions (without Ni(X), 0.22 wt % Ni (X1), 0.34 wt. % Ni (X2). Fabricated test bars were converted in to as per ASTM standard samples for different tests. In order to study the influence of chunky nickel morphology studies on fatigue life and impact strength were carried out on a second set of specimens without any microstructural defect. Metallurgical analyses were performed on all the samples of heat treated samples (AF – Ausferrite, MB – Mixed bainite, M – Martensite, RA – Retained Austenite and N-Nodule) were found and compared. It was found that a mean content of 22% of chunky nickel in the microstructure (with respect to total Ni content) influence considerably the fatigue and impact strength properties of the cast iron. Moreover tribological properties of the specimens were also studied under dry sliding conditions at various sliding speed and load. The wear resistance and coefficient of friction were found to increase with increase in load and sliding speed.https://journals.pan.pl/Content/114499/PDF/AMM-2020-1-02-Ramkumar.pdfaustempered ductile ironfatigueimpactnisurface transitionwear |
| spellingShingle | T. Ramkumar S. Madhusudhanan I. Rajendran Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications Archives of Metallurgy and Materials austempered ductile iron fatigue impact ni surface transition wear |
| title | Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications |
| title_full | Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications |
| title_fullStr | Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications |
| title_full_unstemmed | Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications |
| title_short | Effect of Nickel on the Microstructure, Mechanical and Tribological Properties of Austempered Ductile Cast Iron for Steering Knuckle Applications |
| title_sort | effect of nickel on the microstructure mechanical and tribological properties of austempered ductile cast iron for steering knuckle applications |
| topic | austempered ductile iron fatigue impact ni surface transition wear |
| url | https://journals.pan.pl/Content/114499/PDF/AMM-2020-1-02-Ramkumar.pdf |
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