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May 17, 2026Transactions of Nonferrous Metals Society of ChinaOpen Access

Optimization of microstructure and properties of directionally solidified Cu−15Ni−8Sn alloy by multi-stage thermomechanical treatment

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Authors

YSYu-fan SHICGCheng-jun GUOMYMing-quan Yuan

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Overview

Randomized trial investigates mechanical properties in a Cu−15Ni−8Sn alloy, suggesting benefits of multi-stage treatments.

Key Points

  • This research aims to understand how multi-stage thermomechanical treatment affects the microstructure and mechanical properties of Cu−15Ni−8Sn alloy.
  • Fabrication of Cu−15Ni−8Sn alloy wire using directional solidification techniques.
  • Application of multi-stage thermomechanical treatment followed by aging at 400 °C for 0.25 h.
  • Systematic investigation of microstructure evolution and mechanical properties enhancement.
  • Ultimate tensile strength of the alloy increased to 1509 MPa after multi-stage treatment, >200 MPa higher than after single treatment.
  • Grain refinement and increased 〈111〉 fiber texture significantly contributed to improved mechanical properties.
  • Key findings emphasize the crucial role of multi-stage thermomechanical treatment in enhancing properties.

Cite This Study

SHI et al. (2026) studied this question.

synapsesocial.com/papers/6a095a877880e6d24efe0707https://doi.org/10.1016/s1003-6326(25)67024-5
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