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A Novel Cu-10Zn-1.5Ni-0.34Si Alloy with Excellent Mechanical Property Through Precipitation Hardening

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Abstract

A novel Cu-10Zn-1.5Ni-0.34Si alloy was designed to replace the expensive tin-phosphor bronze in this paper. The alloy had better comprehensive mechanical properties than traditional C5191 alloy. The aged Cu-10Zn-1.5Ni-0.34Si alloy had a hardness of 220 HV, electrical conductivity of 28.5% IACS, tensile strength of 650 MPa, yield strength of 575 MPa and elongation of 13%. Ni2Si precipitates formed during aging, and the crystal orientation relationship between matrix and precipitates was: (001)α//(001)δ, and [110]α//[100]δ. Ductile fracture surface with deep cavities was found in the alloy. Solid solution strengthening, deformation strengthening and precipitation strengthening were found to be core strengthening mechanisms in the alloy.

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Acknowledgments

The authors are pleased to acknowledge the financial supply supported by the Project supported by the National Natural Science Foundation of China (51271203) and the Project of Innovation-driven Plan in Central South University.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Central South University, Changsha, 410083, People’s Republic of China

    Wei Chen, Mingpu Wang, Zhou Li, Qiyi Dong, Zhu Xiao & Rui Zhang

  2. State Key Laboratory of Powder Metallurgy, Changsha, 410083, People’s Republic of China

    Zhou Li

  3. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, People’s Republic of China

    Yanlin Jia

  4. School of Physics and Microelectronics, Hunan University, Changsha, 410082, Hunan, People’s Republic of China

    Hongchun Yu

Authors
  1. Wei Chen
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  2. Mingpu Wang
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  3. Zhou Li
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  4. Qiyi Dong
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  5. Yanlin Jia
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  6. Zhu Xiao
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  7. Rui Zhang
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  8. Hongchun Yu
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Correspondence to Mingpu Wang or Zhou Li.

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Chen, W., Wang, M., Li, Z. et al. A Novel Cu-10Zn-1.5Ni-0.34Si Alloy with Excellent Mechanical Property Through Precipitation Hardening. J. of Materi Eng and Perform 25, 4624–4630 (2016). https://doi.org/10.1007/s11665-016-2354-3

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  • DOI: https://doi.org/10.1007/s11665-016-2354-3

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