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<p>Additive manufacturing (AM) is regarded as a promising method for rocket thrust chamber fabrication, given its anticipated benefits in high strength, long service life, and broad design freedom. This research investigates the mechanical and thermal properties of the AM CuCrZr alloy applied in the thrust chamber inner wall. From the experimental results, an elastoplastic constitutive model that accounts for temperature effects is applied based on the classical Chaboche-Voce frame. Thermo-structural coupled analysis is then conducted on a thrust chamber inner wall model designated by the AM CuCrZr alloy. The findings indicate enhanced performance, majorly resulting from the superior material properties without the requirement of heat treatments, thereby validating the efficiency of AM for thrust chamber inner wall application and offering critical guidance for future rocket engine designs.</p>

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Investigation on Additive Manufactured CuCrZr Alloy Regenerative Cooling Thrust Chamber: Material Properties and Structural Mechanical Response

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Qiyue Zhang,
  • Hongtao Xie,
  • Peng Dong,
  • Guobiao Cai,
  • Hui Tian,
  • Ruizhi Li

摘要

Additive manufacturing (AM) is regarded as a promising method for rocket thrust chamber fabrication, given its anticipated benefits in high strength, long service life, and broad design freedom. This research investigates the mechanical and thermal properties of the AM CuCrZr alloy applied in the thrust chamber inner wall. From the experimental results, an elastoplastic constitutive model that accounts for temperature effects is applied based on the classical Chaboche-Voce frame. Thermo-structural coupled analysis is then conducted on a thrust chamber inner wall model designated by the AM CuCrZr alloy. The findings indicate enhanced performance, majorly resulting from the superior material properties without the requirement of heat treatments, thereby validating the efficiency of AM for thrust chamber inner wall application and offering critical guidance for future rocket engine designs.