Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel
This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels. Differences in austenite grain size distribution may result, for example, from uneven heating rates of semi-finished products prior to a forgi...
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| Format: | Article |
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MDPI AG
2019-05-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/9/5/577 |
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| author | Sebastian Härtel Birgit Awiszus Marcel Graf Alexander Nitsche Marcus Böhme Martin F.-X. Wagner Hana Jirkova Bohuslav Masek |
| author_facet | Sebastian Härtel Birgit Awiszus Marcel Graf Alexander Nitsche Marcus Böhme Martin F.-X. Wagner Hana Jirkova Bohuslav Masek |
| author_sort | Sebastian Härtel |
| collection | DOAJ |
| description | This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels. Differences in austenite grain size distribution may result, for example, from uneven heating rates of semi-finished products prior to a forging process. In order to quantify this influence, a carefully defined heat treatment of a cylindrical specimen made of the Q-P-capable 42SiCr steel was performed in a dilatometer. Different austenite grain sizes were adjusted by a pre-treatment before the actual Q-P process. The resulting mechanical properties were determined using the upsetting test and the corresponding microstructures were analyzed by scanning electron microscopy (SEM). These investigations show that a larger austenite grain size prior to Q-P processing leads to a slightly lower strength as well as to a coarser martensitic microstructure in the Q-P-treated material. |
| first_indexed | 2024-04-14T06:57:17Z |
| format | Article |
| id | doaj.art-acf55c09c1774c968cf39495a5ab77d5 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-14T06:57:17Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-acf55c09c1774c968cf39495a5ab77d52022-12-22T02:06:50ZengMDPI AGMetals2075-47012019-05-019557710.3390/met9050577met9050577Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr SteelSebastian Härtel0Birgit Awiszus1Marcel Graf2Alexander Nitsche3Marcus Böhme4Martin F.-X. Wagner5Hana Jirkova6Bohuslav Masek7Virtual Production Engineering, Technische Universität Chemnitz, 09107 Chemnitz, GermanyVirtual Production Engineering, Technische Universität Chemnitz, 09107 Chemnitz, GermanyVirtual Production Engineering, Technische Universität Chemnitz, 09107 Chemnitz, GermanyWelding Engineering, Technische Universität Chemnitz, 09107 Chemnitz, GermanyMaterials Science, Technische Universität Chemnitz, 09125 Chemnitz, GermanyMaterials Science, Technische Universität Chemnitz, 09125 Chemnitz, GermanyRegional Technological Institut, University of West Bohemia, 301 00 Pilsen, Czech RepublicCOMTES FHT, Průmyslová 995, 33441 Dobřany, Czech RepublicThis paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels. Differences in austenite grain size distribution may result, for example, from uneven heating rates of semi-finished products prior to a forging process. In order to quantify this influence, a carefully defined heat treatment of a cylindrical specimen made of the Q-P-capable 42SiCr steel was performed in a dilatometer. Different austenite grain sizes were adjusted by a pre-treatment before the actual Q-P process. The resulting mechanical properties were determined using the upsetting test and the corresponding microstructures were analyzed by scanning electron microscopy (SEM). These investigations show that a larger austenite grain size prior to Q-P processing leads to a slightly lower strength as well as to a coarser martensitic microstructure in the Q-P-treated material.https://www.mdpi.com/2075-4701/9/5/577quench and partitioning (Q-P) processaustenite grainmartensitic microstructuremechanical behaviorupsetting test |
| spellingShingle | Sebastian Härtel Birgit Awiszus Marcel Graf Alexander Nitsche Marcus Böhme Martin F.-X. Wagner Hana Jirkova Bohuslav Masek Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel Metals quench and partitioning (Q-P) process austenite grain martensitic microstructure mechanical behavior upsetting test |
| title | Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel |
| title_full | Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel |
| title_fullStr | Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel |
| title_full_unstemmed | Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel |
| title_short | Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel |
| title_sort | influence of austenite grain size on mechanical properties after quench and partitioning treatment of a 42sicr steel |
| topic | quench and partitioning (Q-P) process austenite grain martensitic microstructure mechanical behavior upsetting test |
| url | https://www.mdpi.com/2075-4701/9/5/577 |
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