Scholarlink

<p>TA32 is a near-alpha titanium alloy and is a specific grade of titanium alloy that is known for its high strength, lightweight, and excellent corrosion resistance. Using the optimized filler metal composition and a 900 °C/40-min holding process, a relatively uniform interface microstructure with high strength was achieved for TA32 honeycombs with an 8.4-mm cell size and 0.1-mm wall thickness. The joint strength of the honeycomb was increased from room temperature to 500 °C and it was decreased at 550 °C. Under the 900 °C/40-min holding process, the 0.1-mm thick TA32 thin strip did not undergo grain growth or phase transformation. Titanium is the dominant element in the interface, while Cu and Ni from the filler metal are concentrated at the center. The central interface primarily consists of a titanium-based solid solution (HCP structure) with trace TiNi₃ phase; the presence of TiCu2 (1.11%) and Ti2Cu (0.0126%) were detected. The operating temperature of this TA32 honeycomb structure should not exceed 550 °C.</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

Brazing of TA32 Ti-based alloy with honeycomb structure and the joint microstructure

  • 期刊论文

  • 发表日期：

    2026年5月21日

查看全文
  • Yongjuan Jing,
  • Fan Gao,
  • Yonglai Shang,
  • Bo Chen,
  • Chi Xu,
  • Huaping Xiong

摘要

TA32 is a near-alpha titanium alloy and is a specific grade of titanium alloy that is known for its high strength, lightweight, and excellent corrosion resistance. Using the optimized filler metal composition and a 900 °C/40-min holding process, a relatively uniform interface microstructure with high strength was achieved for TA32 honeycombs with an 8.4-mm cell size and 0.1-mm wall thickness. The joint strength of the honeycomb was increased from room temperature to 500 °C and it was decreased at 550 °C. Under the 900 °C/40-min holding process, the 0.1-mm thick TA32 thin strip did not undergo grain growth or phase transformation. Titanium is the dominant element in the interface, while Cu and Ni from the filler metal are concentrated at the center. The central interface primarily consists of a titanium-based solid solution (HCP structure) with trace TiNi₃ phase; the presence of TiCu2 (1.11%) and Ti2Cu (0.0126%) were detected. The operating temperature of this TA32 honeycomb structure should not exceed 550 °C.