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Mechanism Analysis of Influence of Sulfur Content on Tensile Properties of C71500 Cu-Ni Alloy
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1.Institute of Engineering Technology, University of Science and Technology Beijing, Beijing 100083, China;2.Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing 100083, China;3.State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China;4.State Key Lab of Rolling and Automation, Northeastern University,Shenyang 110819, China;5.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;6.Wuxi Longda Metal Material Co., Ltd, Wuxi 214105, China

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National Natural Science Foundation of China (51801149); Sponsored by Ministry of Industry and Information Technology of the People''s Republic of China (TC170A2KN-8)

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    Abstract:

    Six kinds of Cu-Ni alloys with different sulfur contents were investigated at room temperature for tensile properties. The effects of tensile rate and sulfur content on the yield strength, tensile strength, elongation, and reduction of area of the alloys were studied. The changes of metallographic structure with sulfur content were studied by scanning electron microscope (SEM), energy disperse spectroscopy (EDS) and metallographic structure analysis. The distribution and deformation of sulfur precipitate and the influence law for the plasticity of Cu-Ni alloy were analyzed. The origin and occurrence of alloy fracture process and the influence mechanism of sulfur content on plasticity were analyzed, providing a theoretical basis for subsequent cold deformation process.

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[Gao Xin, Wu Huibin, Liu Ming, Zhang Yuanxiang, Gao Feng, Zhou Xiangdong. Mechanism Analysis of Influence of Sulfur Content on Tensile Properties of C71500 Cu-Ni Alloy[J]. Rare Metal Materials and Engineering,2021,50(7):2268~2272.]
DOI:10.12442/j. issn.1002-185X.20200829

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History
  • Received:October 28,2020
  • Revised:December 18,2020
  • Adopted:December 23,2020
  • Online: August 09,2021
  • Published: July 31,2021