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Effect of Double Austenitization on the Microstructure and Hardness of High-Carbon Steel 1.4% C – 11.7% Cr

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Metal Science and Heat Treatment Aims and scope

The effects of single and double austenitization at 900, 590, 1000 and 1050°C on the microstructure and hardness of quenched and tempered steel 1.4% C – 11.7% Cr (FMU-11) are studied. The metallographic analysis is performed by optical and electron scanning microscopy. The microhardness is measured at low (10 kg) and high (150 kg) loads. The volume content of retained austenite and primary and secondary carbides in the structure is determined. It is shown that double austenitization reduces the size of the carbides and raises the content of retained austenite as compared to single austenitization. Elevation of the austenitization temperature results in lowering of the hardness of the steel.

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Authors and Affiliations

  1. Graduate School of Materials Engineering, Azad University, Saveh Branch, Saveh, Iran

    Alireza Darvishi & Aria Daneshmayeh

  2. Department of Technology, Ravanshir Steel Factory, Takestan, Iran

    Alireza Darvishi, Alihosein Salehi & Mahdi Ahmadi

  3. Department of Production, Ring Khodro Pars Factory, Takestan, Iran

    Aria Daneshmayeh

  4. Department of Production, Ravanshir Steel Factory, Takestan, Iran

    Alihosein Salehi & Mahdi Ahmadi

Authors
  1. Alireza Darvishi
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  2. Aria Daneshmayeh
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  3. Alihosein Salehi
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  4. Mahdi Ahmadi
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Correspondence to Alireza Darvishi.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 16 – 19, January, 2022.

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Darvishi, A., Daneshmayeh, A., Salehi, A. et al. Effect of Double Austenitization on the Microstructure and Hardness of High-Carbon Steel 1.4% C – 11.7% Cr. Met Sci Heat Treat 64, 16–19 (2022). https://doi.org/10.1007/s11041-022-00755-4

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  • DOI: https://doi.org/10.1007/s11041-022-00755-4

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