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Application of Rietveld refinement to investigate the high chromium white cast iron austempered at different temperatures

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Abstract

The effect of austempering temperature on the microstructure and properties of a high chromium white cast iron was investigated with the Rietveld refinement method. The result shows that the upper bainite exists in the sample austempered at 623 K and the martensite, lower bainite, M7C3, and retained austenite exist in the samples austempered at 563 K and 593 K. The relative content of the retained austenite increases with increasing the austempering temperature from 563 K to 623 K. The higher hardness, impact toughness and impact abrasive wear resistance can be obtained for the specimen austempered at 593 K.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094, Nanjing, Jiangsu, China

    Qing-yu Hou (Doctor Candidate, Associate Professor) & Jing-tao Wang

  2. School of Materials Science and Engineering, Anhui University of Technology, 243002, Ma’anshan, Anhui, China

    Qing-yu Hou (Doctor Candidate, Associate Professor) & Zhen-yi Huang

Authors
  1. Qing-yu Hou
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  2. Zhen-yi Huang
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  3. Jing-tao Wang
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Correspondence to Qing-yu Hou.

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Foundation Item: Item Sponsored by Key Project on Natural Science for the Education Department of Anhui Province (2006KJ080A)

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Hou, Qy., Huang, Zy. & Wang, Jt. Application of Rietveld refinement to investigate the high chromium white cast iron austempered at different temperatures. J. Iron Steel Res. Int. 16, 33–38 (2009). https://doi.org/10.1016/S1006-706X(09)60057-1

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  • DOI: https://doi.org/10.1016/S1006-706X(09)60057-1

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