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Trial Manufacturing of Ni-base rotor forging for 700 ℃ advanced USC powder plant
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    Abstract:

    For rapid breakthrough, acquire the key manufacturing technology and accomplish key data accumulation, CFHI had manufactured a large-section Ni-base trial forging for 700 ℃ advanced USC powder plant. We successfully manufactured the rotor trial forging with a diameter of 660mm after several times of upsetting and drawing. Grain size of Ni-base alloy forging was 4-6 class and 1~2 class after heat treatment. The room temperature tensile strength can reach 1000MPa, yield strength can reach 600MPa, the impact energy is beyond 45J at different positions after heat treatment. The tensile strength can reach 800MPa, yield strength can reach 500MPa at 700℃.Tthe plasticity is more than20% at room temperature and 700℃.We realized the homogeneous manufacture of large section nickel base alloy forging.

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[nieyihong, baiyaguan, koujinfeng, guowei, zhangxin, caozhiyuan, wangbaozhong. Trial Manufacturing of Ni-base rotor forging for 700 ℃ advanced USC powder plant[J]. Rare Metal Materials and Engineering,2021,50(10):3814~3818.]
DOI:10.12442/j. issn.1002-185X.20210173

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History
  • Received:March 03,2021
  • Revised:April 09,2021
  • Adopted:May 13,2021
  • Online: October 28,2021
  • Published: October 25,2021