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Structural evolution and stability of mechanically alloyed Fe-Ni nanocrystalline

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Abstract

The structural evolution and stability of Fe100−xNix (x=10, 20, 35, 50) alloys prepared by mechanical alloying were investigated through X-ray diffraction analysis and transmission electron microscopy. The intrinsic conditions of preparation determining phase stability in nanocrystalline were clarified. After being milled for 120 h, the powders of Fe90Ni10 and Fe80Ni20 consist of a single α(bcc) phase, Fe30Ni30 powders are a single γ(fcc), and for Fe65Ni35 powders there is co-existence of α and γ phases. The as-milled Fe80Ni20 powders annealed at 680 °C exhibits the stability of high-temperature γ phase at room temperature, which is consistent with the theoretical prediction.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shanghai Jiaotong University, 200030, Shanghai, China

    Chen Zi, Liu Qi-zheng, Meng Qing-ping & Rong Yong-hua (Professor)

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  1. Chen Zi
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  2. Liu Qi-zheng
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  3. Meng Qing-ping
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  4. Rong Yong-hua
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Correspondence to Rong Yong-hua.

Additional information

Foundation item: Project (0159 nm045, 0210 nm017) supported by the Science and Technology Foundation of Shanghai.

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Chen, Z., Liu, Qz., Meng, Qp. et al. Structural evolution and stability of mechanically alloyed Fe-Ni nanocrystalline. J Cent. South Univ. Technol. 12, 389–392 (2005). https://doi.org/10.1007/s11771-005-0167-x

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  • DOI: https://doi.org/10.1007/s11771-005-0167-x

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