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Influence of thermal homogenization treatment on structure and impact toughness of H13 ESR steel

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Abstract

The as-cast microstructure of H13 ESR ingot and the influence of high temperature diffusion treatment on the structure and impact toughness have been investigated. The results show that the dendrite arm spacing gradually becomes wide from the surface to the center of ingot, and the large primary carbide particles always exist in interdendritic segregation areas; by means of high temperature diffusion treatment of ingot prior to hot forging, the banded segregation is nearly eliminated, the annealed structure is more uniform and the isotropic properties have been improved remarkably.

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References

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Authors and Affiliations

  1. Central Iron and Steel Research Institute, 100081, Beijing, China

    Dang-shen Ma (Senior Engineer), Jian Zhou, Zai-zhi Chen, Zhong-kan Zhang & Qi-an Chen

  2. Jiangsu Tiangong Tool Co Ltd, 212312, Danyang, Jiangsu, China

    De-hui Li

Authors
  1. Dang-shen Ma
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  2. Jian Zhou
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  3. Zai-zhi Chen
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  4. Zhong-kan Zhang
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  5. Qi-an Chen
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  6. De-hui Li
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Corresponding author

Correspondence to Dang-shen Ma.

Additional information

Foundation Item: Item Sponsored by National Key Technology Research and Development Program of China (2007BAE51B04)

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Ma, Ds., Zhou, J., Chen, Zz. et al. Influence of thermal homogenization treatment on structure and impact toughness of H13 ESR steel. J. Iron Steel Res. Int. 16, 56–60 (2009). https://doi.org/10.1016/S1006-706X(10)60011-8

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  • DOI: https://doi.org/10.1016/S1006-706X(10)60011-8

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