Scholarlink

<p>Two different thicknesses of CuCrZr plates combined with laser deposited V layer were designed as a composite intermediate layer to laser welding of TC4 alloy to 304 stainless steel (SS). The effect of different thicknesses of CuCrZr plates on microstructure and mechanical properties of Ti/steel welded joint was investigated. The results show that a sound Ti/steel joint with full penetration has been successfully achieved using the prepared composite interlayer. When the thickness of CuCrZr plates was increased to 1&#xa0;mm from 0.5&#xa0;mm, an unmelted CuCrZr zone was observed, which hindered the diffusion of Fe and V elements. A small amount of clustered FeV intermetallic compounds (IMCs) were found in fusion zone (FZ) with 0.5-mm-thick CuCrZr plates; however, no sign of IMCs formation was observed in FZs using 1-mm-thick CuCrZr plates. Compared to 0.5-mm-thick CuCrZr plates, the application of 1-mm-thick CuCrZr plates resulted in a more uniform hardness distribution of the FZs, as well as stronger ultimate tensile strength (415&#xa0;MPa) and elongation (5.2%). In addition, the most important feature was that the fracture of the joint with 1-mm-thick CuCrZr plates occurred in the unmelted CuCrZr zone rather than in the FZs.</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

Effect of CuCrZr interlayer thickness on microstructure and mechanical properties of TC4/304 SS joint using CuCrZr/V composite layers

  • 期刊论文

  • 发表日期：

    2025年3月14日

查看全文
  • Zhenfu Shi,
  • Li Cui,
  • Dingyong He,
  • Huachen Li,
  • Zhekai Huang,
  • Qing Cao,
  • Fanhui Bu,
  • Yingying Zhai

摘要

Two different thicknesses of CuCrZr plates combined with laser deposited V layer were designed as a composite intermediate layer to laser welding of TC4 alloy to 304 stainless steel (SS). The effect of different thicknesses of CuCrZr plates on microstructure and mechanical properties of Ti/steel welded joint was investigated. The results show that a sound Ti/steel joint with full penetration has been successfully achieved using the prepared composite interlayer. When the thickness of CuCrZr plates was increased to 1 mm from 0.5 mm, an unmelted CuCrZr zone was observed, which hindered the diffusion of Fe and V elements. A small amount of clustered FeV intermetallic compounds (IMCs) were found in fusion zone (FZ) with 0.5-mm-thick CuCrZr plates; however, no sign of IMCs formation was observed in FZs using 1-mm-thick CuCrZr plates. Compared to 0.5-mm-thick CuCrZr plates, the application of 1-mm-thick CuCrZr plates resulted in a more uniform hardness distribution of the FZs, as well as stronger ultimate tensile strength (415 MPa) and elongation (5.2%). In addition, the most important feature was that the fracture of the joint with 1-mm-thick CuCrZr plates occurred in the unmelted CuCrZr zone rather than in the FZs.