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Founded in 1987， Bimonthly
Supervisor：Jiangxi University Of Science And Technology
Sponsored by：Jiangxi University Of Science And Technology
Jiangxi Nonferrous Metals Society
ISSN：1674-9669
CN：36-1311/TF
CODEN YJKYA9
Volume 13 Issue 1
Feb.  2022
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Abstract
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LI Lyuda, HONG Xin, MAN Xucun, CHEN Qiao, ZHANG Jianbo, LIU Jinping. High temperature deformation behavior and hot processing map of Cu-Ni-Ti alloy[J]. Nonferrous Metals Science and Engineering, 2022, 13(1): 44-51. DOI: 10.13264/j.cnki.ysjskx.2022.01.006
Citation: LI Lyuda, HONG Xin, MAN Xucun, CHEN Qiao, ZHANG Jianbo, LIU Jinping. High temperature deformation behavior and hot processing map of Cu-Ni-Ti alloy[J]. Nonferrous Metals Science and Engineering, 2022, 13(1): 44-51. DOI: 10.13264/j.cnki.ysjskx.2022.01.006
shu

High temperature deformation behavior and hot processing map of Cu-Ni-Ti alloy

  • a.

    Faculty of Materials Metallurgy and Chemistry, Ganzhou 341000, Jiangxi, China

  • b.

    College of Applied Science, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China

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  • Received Date: July 25, 2021
  • Revised Date: July 25, 2021
  • Available Online: April 13, 2022
    Graphical Abstract
    • Abstract
  • The Cu-Ni-Ti alloy was subjected to isothermal compression tests at temperatures ranging from 700 to 850 ℃ with deformation rates ranging from 0.01 to 10 s-1 using MMS-100 thermal simulator. The results showed that with the increase of strain, the flow stress rapidly rose to the limit value and then gradually turned into an easy curve. The flow stress decreased with the increase of temperature and increased with the increase of strain rate. Based on the relationship between stress, deformation rate and strain temperature, the constitutive equation and hot processing map of Cu-Ni-Ti alloy were constructed. The optimal processing conditions of Cu-Ni-Ti alloys were in the range of temperature 840~850 ℃ and strain rate 0.1~1 s-1. Under the optimal process conditions, the microstructure was an equiaxed crystal with dynamic recovery and recrystallization grain, and slender fibrous structure could be mostly found in the instability zone.
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    • References (26)
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