Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel
The reliability of medical devices such as extraction forceps is vital for dental and oral care. Apart from having hygienic properties, the extraction forceps must be strong and resistant to corrosion. This study evaluates the effects of tempering temperature on the hardness and microstructure of a...
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| Format: | UMS Journal (OJS) |
| Language: | eng |
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Universitas Muhammadiyah Surakarta
2020
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| Online Access: | https://journals2.ums.ac.id/index.php/arstech/article/view/184 |
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| author | Kholis, Nur Nuryanto, Nuryanto Mustofa, Arif |
| author_facet | Kholis, Nur Nuryanto, Nuryanto Mustofa, Arif |
| author_sort | Kholis, Nur |
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| description | The reliability of medical devices such as extraction forceps is vital for dental and oral care. Apart from having hygienic properties, the extraction forceps must be strong and resistant to corrosion. This study evaluates the effects of tempering temperature on the hardness and microstructure of a medical device’s material made from stainless-steel DIN 4021. In the experiments, a heat treatment process was carried out previously with a temperature of 1,050°C and a holding time of 20 minutes. A quenching process was conducted using a cooling channel that flowed with water at 10-20°C. After the heat treatment, the material was subjected to a tempering process with temperature variations of 200, 400, and 600°C. The research results indicated that the heat treatment process could increase the material’s hardness —the hardness of the raw material changed from 20 to 48.67 HRC with the heat treatment. The tempering parameters resulted in the highest hardness of 46.67 HRC at 200°C and the lowest value of 42.33 HRC at 600°C. Microstructure testing using optical microscopy showed that it produced ferrite, pearlite, and martensite structures. In contrast, the result of a microstructure testing using Scanning Electron Microscopy on the surface of the material is that the higher the tempering temperature, the greater the microstructures’ dimension. |
| format | UMS Journal (OJS) |
| id | oai:ojs2.journals2.ums.ac.id:article-184 |
| institution | Universitas Muhammadiyah Surakarta |
| language | eng |
| publishDate | 2020 |
| publisher | Universitas Muhammadiyah Surakarta |
| record_format | ojs |
| spelling | oai:ojs2.journals2.ums.ac.id:article-184 Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel Kholis, Nur Nuryanto, Nuryanto Mustofa, Arif Hardness Microstructure Stainless-steel scanning electron microscopy (SEM) Medical material The reliability of medical devices such as extraction forceps is vital for dental and oral care. Apart from having hygienic properties, the extraction forceps must be strong and resistant to corrosion. This study evaluates the effects of tempering temperature on the hardness and microstructure of a medical device’s material made from stainless-steel DIN 4021. In the experiments, a heat treatment process was carried out previously with a temperature of 1,050°C and a holding time of 20 minutes. A quenching process was conducted using a cooling channel that flowed with water at 10-20°C. After the heat treatment, the material was subjected to a tempering process with temperature variations of 200, 400, and 600°C. The research results indicated that the heat treatment process could increase the material’s hardness —the hardness of the raw material changed from 20 to 48.67 HRC with the heat treatment. The tempering parameters resulted in the highest hardness of 46.67 HRC at 200°C and the lowest value of 42.33 HRC at 600°C. Microstructure testing using optical microscopy showed that it produced ferrite, pearlite, and martensite structures. In contrast, the result of a microstructure testing using Scanning Electron Microscopy on the surface of the material is that the higher the tempering temperature, the greater the microstructures’ dimension. Universitas Muhammadiyah Surakarta 2020-11-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://journals2.ums.ac.id/index.php/arstech/article/view/184 10.23917/arstech.v1i2.184 Applied Research and Smart Technology (ARSTech); Vol. 1 No. 2 (2020): Applied Research and Smart Technology; 56-63 2722-9645 2722-9637 10.23917/arstech.v1i2 eng https://journals2.ums.ac.id/index.php/arstech/article/view/184/64 Copyright (c) 2020 Nur Kholis, Nuryanto Nuryanto, Arif Mustofa https://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Hardness Microstructure Stainless-steel scanning electron microscopy (SEM) Medical material Kholis, Nur Nuryanto, Nuryanto Mustofa, Arif Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title | Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title_full | Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title_fullStr | Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title_full_unstemmed | Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title_short | Characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless-steel |
| title_sort | characteristics of hardness and microstructure of extraction forceps for dental and oral care made of stainless steel |
| topic | Hardness Microstructure Stainless-steel scanning electron microscopy (SEM) Medical material |
| topic_facet | Hardness Microstructure Stainless-steel scanning electron microscopy (SEM) Medical material |
| url | https://journals2.ums.ac.id/index.php/arstech/article/view/184 |
| work_keys_str_mv | AT kholisnur characteristicsofhardnessandmicrostructureofextractionforcepsfordentalandoralcaremadeofstainlesssteel AT nuryantonuryanto characteristicsofhardnessandmicrostructureofextractionforcepsfordentalandoralcaremadeofstainlesssteel AT mustofaarif characteristicsofhardnessandmicrostructureofextractionforcepsfordentalandoralcaremadeofstainlesssteel |