Scholarlink

<p>This study demonstrates the successful fabrication of Ta<sub>8</sub>Nb<sub>28</sub>Hf<sub>8</sub>Zr<sub>28</sub>Ti<sub>28</sub> high-entropy alloy (HEA) using Laser Engineered Net Shaping (LENS) technology. Through precise control of process parameters, efficient melting and mixing of refractory elements were achieved, resulting in a predominantly single-phase BCC structure, with process-induced unmelted Nb-rich particles present in some samples.. A key breakthrough is the transformation of process-induced unmelted Nb-rich particles into flux pinning centers. The particle-rich sample exhibited over 100% enhancement in <i>J</i><sub>C</sub> at 2&#xa0;K and 0&#xa0;T compared to its particle-lean sample. Additionally, observed trends between superconducting properties and hardness were identified. These results demonstrate the feasibility of employing the LENS method for manufacturing HEAs, offering a promising route for the near-net-shape fabrication of complex superconducting magnets.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Residual particle enhancement and hardness-mediated performance in laser additive manufactured high-entropy superconducting alloys

  • 期刊论文

  • 发表日期：

    2025年12月25日

查看全文
  • Likun Cao,
  • Fang Yang,
  • Qingbin Hao,
  • Shengnan Zhang,
  • Guo Yan,
  • Pingxiang Zhang

摘要

This study demonstrates the successful fabrication of Ta8Nb28Hf8Zr28Ti28 high-entropy alloy (HEA) using Laser Engineered Net Shaping (LENS) technology. Through precise control of process parameters, efficient melting and mixing of refractory elements were achieved, resulting in a predominantly single-phase BCC structure, with process-induced unmelted Nb-rich particles present in some samples.. A key breakthrough is the transformation of process-induced unmelted Nb-rich particles into flux pinning centers. The particle-rich sample exhibited over 100% enhancement in JC at 2 K and 0 T compared to its particle-lean sample. Additionally, observed trends between superconducting properties and hardness were identified. These results demonstrate the feasibility of employing the LENS method for manufacturing HEAs, offering a promising route for the near-net-shape fabrication of complex superconducting magnets.