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Fabrication and sintering behavior of high-nitrogen nickel-free stainless steels by metal injection molding

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Abstract

High-nitrogen nickel-free stainless steels were fabricated by the metal injection molding technique using high nitrogen alloying powders and a mixture of three polymers as binders. Mixtures of metal powders and binders with various proportions were also investigated, and an optimum powder loading capacity was determined as 64vol%. Intact injection molded compacts were successfully obtained by regulating the processing parameters. The debinding process for molded compacts was optimized with a combination of thermo-gravimetric analysis and differential scanning calorimetry analysis. An optimum relative density and nitrogen content of the specimens are obtained at 1360°C, which are 97.8% and 0.79wt%, respectively.

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Authors and Affiliations

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Zi-wei Xu, Cheng-chang Jia & Xuan-hui Qu

  2. Powder Metallurgy Division, Advanced Technology & Materials Co. Ltd., Beijing, 100081, China

    Chun-jiang Kuang

Authors
  1. Zi-wei Xu
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  2. Cheng-chang Jia
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  3. Chun-jiang Kuang
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  4. Xuan-hui Qu
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Corresponding author

Correspondence to Cheng-chang Jia.

Additional information

This work was financially supported by the National High-Tech Research and Development Program of China (No.2006AA03Z502).

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Xu, Zw., Jia, Cc., Kuang, Cj. et al. Fabrication and sintering behavior of high-nitrogen nickel-free stainless steels by metal injection molding. Int J Miner Metall Mater 17, 423–428 (2010). https://doi.org/10.1007/s12613-010-0335-3

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  • DOI: https://doi.org/10.1007/s12613-010-0335-3

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