Year: 2024
Type: article
Abstract: Conventional welding poses significant challenges when directly joining titanium alloys and stainless steels due to their inherent physical and metallurgical properties variances. The primary challenge in achieving durable joints is to avoid the formation of brittle Ti–Fe intermetallic compounds (IMCs). In this study, Hf-doped amorphous filler material was employed to join TC4/SS316L dissimilar metals by vacuum brazing, achieving a maximum shear strength of 380 MPa under 910 °C/10 min at 1.25 at.% Hf. The interfacial microstructures consisted of the sequence: β-Ti/α-Ti/β-Ti + Ti 2 (Cu, Ni)/Ti 2 (Cu, Ni)/Ti 2 (Zr, Ni)+TiCu/Ti 2 (Ni, Cu, Fe)/γ-(Fe, Ni) + σ. This study presents a successful approach for the brazing of titanium alloy with stainless-steel alloy for high-precision components in the field of aerospace and nuclear sectors.
Authors: Aqsa Bano, Peng Li, Zhiwei Qin, Zhenyang Zhang, Wenqian Han, Xin Jiang, Honggang Dong
Institution: Dalian University of Technology
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
Awards: G462453673, G6024805469
OpenAlex ID: W4405548356