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Application of Smart Hot Forging Technique in Producing Biomedical Co–Cr–Mo Artificial Implants

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Advances in Metallic Biomaterials

Part of the book series: Springer Series in Biomaterials Science and Engineering ((SSBSE,volume 4))

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Abstract

Hot forging processes in producing Co–Cr–Mo artificial implants, which involve large strains and a high strain rate, are usually conducted at temperatures higher than approximately two-thirds the melting point of the material. In order to predict the optimum working condition of the workpiece with complex geometry, a novel technique, smart hot forging technique, has been developed and was successfully applied in optimizing both the microstructure and working condition of Co–Cr–Mo alloy biomedical devices with complex geometry. Smart hot forging technique is established by combining the concepts of both FEM calculation, which can precisely predict both the geometry and working parameter (T, strain, strain rate, etc.), and processing map, which can predict the working state of the workpiece such as the occurrence of crack or shear band. This study emphasized on some fundamental concepts of the processing map as well as friction and adiabatic corrections, which are the basis of this technique.

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Author notes

  1. Yunping Li

    Present address: Materials Science and Engineering, Central South University, Changsha, China

Authors and Affiliations

  1. Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan

    Yunping Li & Chiba Akihiko

Authors
  1. Yunping Li
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  2. Chiba Akihiko
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Corresponding author

Correspondence to Chiba Akihiko .

Editor information

Editors and Affiliations

  1. Institute for Materials Research, Tohoku University, Sendai, Japan

    Mitsuo Niinomi

  2. Department of Materials Processing, Tohoku University, Sendai, Japan

    Takayuki Narushima

  3. Institute for Materials Research, Tohoku University, Sendai, Japan

    Masaaki Nakai

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Li, Y., Akihiko, C. (2015). Application of Smart Hot Forging Technique in Producing Biomedical Co–Cr–Mo Artificial Implants. In: Niinomi, M., Narushima, T., Nakai, M. (eds) Advances in Metallic Biomaterials. Springer Series in Biomaterials Science and Engineering, vol 4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-46842-5_3

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