Microstructure and mechanical properties of Ti/Al laminates fabricated by ultrasonic additive manufacturing assisted by Joule heat and post-welding heat treatment

Wang, Bo; Zhang, Hongtao; Gao, Chong; Lv, Wenquan

doi:10.1016/j.jmrt.2023.09.277

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2024

2025

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“…Moreover, the solid connection between the Al and Ti relies on intermetallic compounds (IMCs) with suitable thicknesses [5,7,15,16]. Without the formation of IMCs, the strength of the joint would be low due to insufficient metallurgical properties [15,[17][18][19], while IMCs that are too thick would make the joint brittle instead [20,21]. Wu et al investigated if IMCs with suitable thicknesses could be achieved by tailoring the heat input [5].…”

Section: Introductionmentioning

confidence: 99%

Shoulder-Restricted Friction Deposition for Aluminum Alloy Coatings on Titanium Alloys

Guo,

Dong,

et al. 2024

Coatings

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In order to solve the problem of a thin deposition layer on the titanium alloy in the traditional friction surfacing process of dissimilar Ti/Al metals, new shoulder-restricted friction deposition (SRFD) equipment was successfully developed by introducing a restricted shoulder. Using a laser to roughen the titanium substrate, the process verification of Al deposition onto TC4 was realized. The material utilization was close to 100%, and a deposition layer with a thickness of 0.8 mm and a strong bonded interface was obtained. The peel strength of the triple-layer deposited joints was 121 MPa.

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