Scholarlink

<p>This study investigates the hydrogen embrittlement (HE) and electrochemical behavior of an ultrahigh-strength Cu/Ti-micro-alloyed high-entropy alloy (HEA) with a composition of Al<sub>7.3</sub>Co<sub>21.3</sub>Cr<sub>10.7</sub>Ti<sub>4.9</sub>Fe<sub>21.3</sub>Ni<sub>32.0</sub>Cu<sub>2.5</sub> (referred to as Cu2.5). The results show a slight increase in strength from 1.75 to 1.80 GPa, with only 38% plasticity loss after hydrogen charging, indicating strong resistance to HE. The solute hydrogen atoms induce solid-solution strengthening and inhibit yield behavior during tensile testing. Additionally, the alloy demonstrates excellent corrosion resistance in 3.5 wt% NaCl solution, attributed to the formation of dense passive films. This alloy could potentially serve as an engineering material for marine applications.</p> Graphical abstract <p></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

Study on the hydrogen embrittlement and electrochemical behavior of an ultrahigh-strength Cu/Ti-micro-alloyed high-entropy alloy

  • 期刊论文

  • 发表日期：

    2025年3月12日

查看全文
  • Min Liu,
  • Menglu Jian,
  • Han Qian,
  • Jiajun Li,
  • Lianbo Wang,
  • Zeming Wang,
  • Wenqing Fu,
  • Fangjie Li,
  • Qin Shen,
  • Zhanyong Wang

摘要

This study investigates the hydrogen embrittlement (HE) and electrochemical behavior of an ultrahigh-strength Cu/Ti-micro-alloyed high-entropy alloy (HEA) with a composition of Al7.3Co21.3Cr10.7Ti4.9Fe21.3Ni32.0Cu2.5 (referred to as Cu2.5). The results show a slight increase in strength from 1.75 to 1.80 GPa, with only 38% plasticity loss after hydrogen charging, indicating strong resistance to HE. The solute hydrogen atoms induce solid-solution strengthening and inhibit yield behavior during tensile testing. Additionally, the alloy demonstrates excellent corrosion resistance in 3.5 wt% NaCl solution, attributed to the formation of dense passive films. This alloy could potentially serve as an engineering material for marine applications.

Graphical abstract